diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml new file mode 100644 index 0000000..b8afb1f --- /dev/null +++ b/.github/FUNDING.yml @@ -0,0 +1,12 @@ +# These are supported funding model platforms + +github: [grandyang] +patreon: # Replace with a single Patreon username +open_collective: # Replace with a single Open Collective username +ko_fi: # Replace with a single Ko-fi username +tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel +community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry +liberapay: # Replace with a single Liberapay username +issuehunt: # Replace with a single IssueHunt username +otechie: # Replace with a single Otechie username +custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2'] diff --git a/.github/ISSUE_TEMPLATE/please-do-not-create-bug-report-in-this-project.md b/.github/ISSUE_TEMPLATE/please-do-not-create-bug-report-in-this-project.md new file mode 100644 index 0000000..5565464 --- /dev/null +++ b/.github/ISSUE_TEMPLATE/please-do-not-create-bug-report-in-this-project.md @@ -0,0 +1,12 @@ +--- +name: Please DO NOT create bug report in this project +about: Please DO NOT create bug report in this project +title: '' +labels: '' +assignees: '' + +--- + +Please DO NOT create bug report in this project! +Please DO NOT create bug report in this project! +Please DO NOT create bug report in this project! diff --git a/.github/ISSUE_TEMPLATE/please-do-not-create-custom-issue-in-this-project.md b/.github/ISSUE_TEMPLATE/please-do-not-create-custom-issue-in-this-project.md new file mode 100644 index 0000000..c3b52ba --- /dev/null +++ b/.github/ISSUE_TEMPLATE/please-do-not-create-custom-issue-in-this-project.md @@ -0,0 +1,12 @@ +--- +name: Please DO NOT create custom issue in this project +about: Please DO NOT create custom issue in this project +title: '' +labels: '' +assignees: '' + +--- + +Please DO NOT create custom issue in this project! +Please DO NOT create custom issue in this project! +Please DO NOT create custom issue in this project! diff --git a/.github/ISSUE_TEMPLATE/please-do-not-create-feature-request-in-this-project.md b/.github/ISSUE_TEMPLATE/please-do-not-create-feature-request-in-this-project.md new file mode 100644 index 0000000..e733cd1 --- /dev/null +++ b/.github/ISSUE_TEMPLATE/please-do-not-create-feature-request-in-this-project.md @@ -0,0 +1,12 @@ +--- +name: Please DO NOT create feature request in this project +about: Please DO NOT create feature request in this project +title: '' +labels: '' +assignees: '' + +--- + +Please DO NOT create feature request in this project! +Please DO NOT create feature request in this project! +Please DO NOT create feature request in this project! diff --git a/README-CN.md b/README-CN.md index aca220a..ec0eaee 100644 --- a/README-CN.md +++ b/README-CN.md @@ -15,929 +15,1368 @@ 与博客园上相同: [LeetCode All in One 题目讲解汇总(持续更新中...)](https://www.cnblogs.com/grandyang/p/4606334.html) +[请点击下方图片观看讲解视频](https://www.youtube.com/playlist?list=PLZFoAdzIur8ii06R2KsX7Mct2PEuUh0tc) +[![Video](https://raw.githubusercontent.com/grandyang/leetcode/master/podcast.png)](https://www.youtube.com/playlist?list=PLZFoAdzIur8ii06R2KsX7Mct2PEuUh0tc) + Note: 所有的讲解写在了 GitHub Issue 上面, **请不要在本项目中新建任何的 Issue 或者 Pull Request，因为博主希望题目编号和 Issue 编号保持一致**，多谢！ -('$' 代表锁住的题目, '*' 代表数据库类题目, '#' 代表脚本类题目。) +('$' 代表锁住的题目, '*' 代表数据库类题目, '#' 代表脚本类题目, '~' 代表并行类题目。) | # | Title | Solution | Difficulty | |---| ----- | -------- | ---------- | -|919|[Complete Binary Tree Inserter](https://github.com/grandyang/LeetCode-All-In-One/issues/919)|55.70%|Medium| -|918|[Maximum Sum Circular Subarray](https://github.com/grandyang/LeetCode-All-In-One/issues/918)|33.20%|Medium| -|917|[Reverse Only Letters](https://github.com/grandyang/LeetCode-All-In-One/issues/917)|56.30%|Easy| -|916|[Word Subsets](https://github.com/grandyang/LeetCode-All-In-One/issues/916)|45.90%|Medium| -|915|[Partition Array into Disjoint Intervals](https://github.com/grandyang/LeetCode-All-In-One/issues/915)|43.90%|Medium| -|914|[X of a Kind in a Deck of Cards](https://github.com/grandyang/LeetCode-All-In-One/issues/914)|34.00%|Easy| -|913|[Cat and Mouse](https://github.com/grandyang/LeetCode-All-In-One/issues/913)|29.90%|Hard| -|912|[Sort an Array](https://github.com/grandyang/LeetCode-All-In-One/issues/912)|62.90%|Medium| -|911|[Online Election](https://github.com/grandyang/LeetCode-All-In-One/issues/911)|48.30%|Medium| -|910|[Smallest Range II](https://github.com/grandyang/LeetCode-All-In-One/issues/910)|24.90%|Medium| -|909|[Snakes and Ladders](https://github.com/grandyang/LeetCode-All-In-One/issues/909)|36.10%|Easy| -|908|[Smallest Range I](https://github.com/grandyang/LeetCode-All-In-One/issues/908)|65.00%|Easy| -|907|[Sum of Subarray Minimums](https://github.com/grandyang/LeetCode-All-In-One/issues/907)|29.40%|Medium| -|906|[Super Palindromes](https://github.com/grandyang/LeetCode-All-In-One/issues/906)|30.80%|Hard| -|905|[Sort Array By Parity](https://github.com/grandyang/LeetCode-All-In-One/issues/905)|72.60%|Easy| -|904|[Fruit Into Baskets](https://github.com/grandyang/LeetCode-All-In-One/issues/904)|41.70%|Medium| -|903|[Valid Permutations for DI Sequence](https://github.com/grandyang/LeetCode-All-In-One/issues/903)|45.10%|Hard| -|902|[Numbers At Most N Given Digit Set](https://github.com/grandyang/LeetCode-All-In-One/issues/902)|28.80%|Hard| -|901|[Online Stock Span](https://github.com/grandyang/LeetCode-All-In-One/issues/901)|49.90%|Medium| -|900|[RLE Iterator](https://github.com/grandyang/LeetCode-All-In-One/issues/900)|50.50%|Medium| -|899|[Orderly Queue](https://github.com/grandyang/LeetCode-All-In-One/issues/899)|47.70%|Hard| -|898|[Bitwise ORs of Subarrays](https://github.com/grandyang/LeetCode-All-In-One/issues/898)|34.70%|Medium| -|897|[Increasing Order Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/897)|65.20%|Easy| -|896|[Monotonic Array](https://github.com/grandyang/LeetCode-All-In-One/issues/896)|55.40%|Easy| -|895|[Maximum Frequency Stack](https://github.com/grandyang/LeetCode-All-In-One/issues/895)|56.70%|Hard| -|894|[All Possible Full Binary Trees](https://github.com/grandyang/LeetCode-All-In-One/issues/894)|71.30%|Medium| -|893|[Groups of Special-Equivalent Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/893)|63.00%|Easy| -|892|[Surface Area of 3D Shapes](https://github.com/grandyang/LeetCode-All-In-One/issues/892)|56.10%|Easy| -|891|[Sum of Subsequence Widths](https://github.com/grandyang/LeetCode-All-In-One/issues/891)|29.20%|Hard| -|890|[Find and Replace Pattern](https://github.com/grandyang/LeetCode-All-In-One/issues/890)|71.30%|Medium| -|889|[Construct Binary Tree from Preorder and Postorder Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/889)|60.70%|Medium| -|888|[Fair Candy Swap](https://github.com/grandyang/LeetCode-All-In-One/issues/888)|56.90%|Easy| -|887|[Super Egg Drop](https://github.com/grandyang/LeetCode-All-In-One/issues/887)|24.90%|Hard| -|886|[Possible Bipartition](https://github.com/grandyang/LeetCode-All-In-One/issues/886)|40.90%|Medium| -|885|[Spiral Matrix III](https://github.com/grandyang/LeetCode-All-In-One/issues/885)|64.80%|Medium| -|884|[Uncommon Words from Two Sentences](https://github.com/grandyang/LeetCode-All-In-One/issues/884)|60.90%|Easy| -|883|[Projection Area of 3D Shapes](https://github.com/grandyang/LeetCode-All-In-One/issues/883)|65.90%|Easy| -|882|[Reachable Nodes In Subdivided Graph](https://github.com/grandyang/LeetCode-All-In-One/issues/882)|38.20%|Hard| -|881|[Boats to Save People](https://github.com/grandyang/LeetCode-All-In-One/issues/881)|44.10%|Medium| -|880|[Decoded String at Index](https://github.com/grandyang/LeetCode-All-In-One/issues/880)|23.00%|Medium| -|879|[Profitable Schemes](https://github.com/grandyang/LeetCode-All-In-One/issues/879)|36.20%|Hard| -|878|[Nth Magical Number](https://github.com/grandyang/LeetCode-All-In-One/issues/878)|25.40%|Hard| -|877|[Stone Game](https://github.com/grandyang/LeetCode-All-In-One/issues/877)|61.10%|Medium| -|876|[Middle of the Linked List](https://github.com/grandyang/LeetCode-All-In-One/issues/876)|63.80%|Easy| -|875|[Koko Eating Bananas](https://github.com/grandyang/LeetCode-All-In-One/issues/875)|45.90%|Medium| -|874|[Walking Robot Simulation](https://github.com/grandyang/LeetCode-All-In-One/issues/874)|31.70%|Easy| -|873|[Length of Longest Fibonacci Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/873)|46.00%|Medium| -|872|[Leaf-Similar Trees](https://github.com/grandyang/LeetCode-All-In-One/issues/872)|63.10%|Easy| -|871|Minimum Number of Refueling Stops|28.70%|Hard| -|870|[Advantage Shuffle](https://github.com/grandyang/LeetCode-All-In-One/issues/870)|42.20%|Medium| -|869|[Reordered Power of 2](https://github.com/grandyang/LeetCode-All-In-One/issues/869)|50.60%|Medium| -|868|[Binary Gap](https://github.com/grandyang/LeetCode-All-In-One/issues/868)|59.30%|Easy| -|867|[Transpose Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/867)|63.90%|Easy| -|866|[Prime Palindrome](https://github.com/grandyang/LeetCode-All-In-One/issues/866)|20.00%|Medium| -|865|[Smallest Subtree with all the Deepest Nodes](https://github.com/grandyang/LeetCode-All-In-One/issues/865)|55.40%|Medium| -|864|[Shortest Path to Get All Keys](https://github.com/grandyang/LeetCode-All-In-One/issues/864)|35.70%|Hard| -|863|[All Nodes Distance K in Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/863)|46.80%|Medium| -|862|[Shortest Subarray with Sum at Least K](https://github.com/grandyang/LeetCode-All-In-One/issues/862)|22.00%|Hard| -|861|[Score After Flipping Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/861)|69.30%|Medium| -|860|[Lemonade Change](https://github.com/grandyang/LeetCode-All-In-One/issues/860)|50.20%|Easy| -|859|[Buddy Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/859)|27.60%|Easy| -|858|[Mirror Reflection](https://github.com/grandyang/LeetCode-All-In-One/issues/858)|52.00%|Medium| -|857|[Minimum Cost to Hire K Workers](https://github.com/grandyang/LeetCode-All-In-One/issues/857)|47.30%|Hard| -|856|[Score of Parentheses](https://github.com/grandyang/LeetCode-All-In-One/issues/856)|55.90%|Medium| -|855|[Exam Room](https://github.com/grandyang/LeetCode-All-In-One/issues/855)|38.10%|Medium| -|854|[K-Similar Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/854)|33.20%|Hard| -|853|[Car Fleet](https://github.com/grandyang/LeetCode-All-In-One/issues/853)|39.30%|Medium| -|852|[Peak Index in a Mountain Array](https://github.com/grandyang/LeetCode-All-In-One/issues/852)|68.50%|Easy| -|851|[Loud and Rich](https://github.com/grandyang/LeetCode-All-In-One/issues/851)|47.40%|Medium| -|850|[Rectangle Area II](https://github.com/grandyang/LeetCode-All-In-One/issues/850)|44.00%|Hard| -|849|[Maximize Distance to Closest Person](https://github.com/grandyang/LeetCode-All-In-One/issues/849)|40.40%|Easy| -|848|[Shifting Letters](https://github.com/grandyang/LeetCode-All-In-One/issues/848)|39.90%|Medium| -|847|[Shortest Path Visiting All Nodes](https://github.com/grandyang/LeetCode-All-In-One/issues/847)|45.90%|Hard| -|846|[Hand of Straights](https://github.com/grandyang/LeetCode-All-In-One/issues/846)|48.60%|Medium| -|845|[Longest Mountain in Array](https://github.com/grandyang/LeetCode-All-In-One/issues/845)|34.00%|Medium| -|844|[Backspace String Compare](https://github.com/grandyang/LeetCode-All-In-One/issues/844)|45.50%|Easy| -|843|[Guess the Word](https://github.com/grandyang/LeetCode-All-In-One/issues/843)|42.60%|Hard| -|842|[Split Array into Fibonacci Sequence](https://github.com/grandyang/LeetCode-All-In-One/issues/842)|34.60%|Medium| -|841|[Keys and Rooms](https://github.com/grandyang/LeetCode-All-In-One/issues/841)|59.70%|Medium| -|840|[Magic Squares In Grid](https://github.com/grandyang/LeetCode-All-In-One/issues/840)|35.10%|Easy| -|839|[Similar String Groups](https://github.com/grandyang/LeetCode-All-In-One/issues/839)|33.50%|Hard| -|838|[Push Dominoes](https://github.com/grandyang/LeetCode-All-In-One/issues/838)|42.80%|Medium| -|837|[New 21 Game](https://github.com/grandyang/LeetCode-All-In-One/issues/837)|29.50%|Medium| -|836|[Rectangle Overlap](https://github.com/grandyang/LeetCode-All-In-One/issues/836)|45.50%|Easy| -|835|[Image Overlap](https://github.com/grandyang/LeetCode-All-In-One/issues/835)|50.30%|Medium| -|834|[Sum of Distances in Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/834)|38.10%|Hard| -|833|[Find And Replace in String](https://github.com/grandyang/LeetCode-All-In-One/issues/833)|44.50%|Medium| -|832|[Flipping an Image](https://github.com/grandyang/LeetCode-All-In-One/issues/832)|71.30%|Easy| -|831|[Masking Personal Information](https://github.com/grandyang/LeetCode-All-In-One/issues/831)|41.50%|Medium| -|830|[Positions of Large Groups](https://github.com/grandyang/LeetCode-All-In-One/issues/830)|47.40%|Easy| -|829|[Consecutive Numbers Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/829)|32.10%|Hard| -|828|[Unique Letter String](https://github.com/grandyang/LeetCode-All-In-One/issues/828)|38.10%|Hard| -|827|[Making A Large Island](https://github.com/grandyang/LeetCode-All-In-One/issues/827)|42.10%|Hard| -|826|[Most Profit Assigning Work](https://github.com/grandyang/LeetCode-All-In-One/issues/826)|34.70%|Medium| -|825|[Friends Of Appropriate Ages](https://github.com/grandyang/LeetCode-All-In-One/issues/825)|35.00%|Medium| -|824|[Goat Latin](https://github.com/grandyang/LeetCode-All-In-One/issues/824)|56.70%|Easy| -|823|[Binary Trees With Factors](https://github.com/grandyang/LeetCode-All-In-One/issues/823)|31.50%|Medium| -|822|[Card Flipping Game](https://github.com/grandyang/LeetCode-All-In-One/issues/822)|39.70%|Medium| -|821|[Shortest Distance to a Character](https://github.com/grandyang/LeetCode-All-In-One/issues/821)|62.60%|Easy| -|820|[Short Encoding of Words](https://github.com/grandyang/LeetCode-All-In-One/issues/820)|46.00%|Medium| -|819|[Most Common Word](https://github.com/grandyang/LeetCode-All-In-One/issues/819)|41.50%|Easy| -|818|[Race Car](https://github.com/grandyang/LeetCode-All-In-One/issues/818)|34.00%|Hard| -|817|[Linked List Components](https://github.com/grandyang/LeetCode-All-In-One/issues/817)|51.90%|Medium| -|816|[Ambiguous Coordinates](https://github.com/grandyang/LeetCode-All-In-One/issues/816)|42.40%|Medium| -|815|[Bus Routes](https://github.com/grandyang/LeetCode-All-In-One/issues/815)|36.10%|Hard| -|814|[Binary Tree Pruning](https://github.com/grandyang/LeetCode-All-In-One/issues/814)|68.30%|Medium| -|813|[Largest Sum of Averages](https://github.com/grandyang/LeetCode-All-In-One/issues/813)|42.40%|Medium| -|812|[Largest Triangle Area](https://github.com/grandyang/LeetCode-All-In-One/issues/812)|53.80%|Easy| -|811|[Subdomain Visit Count](https://github.com/grandyang/LeetCode-All-In-One/issues/811)|61.50%|Easy| -|810|[Chalkboard XOR Game](https://github.com/grandyang/LeetCode-All-In-One/issues/810)|41.90%|Hard| -|809|[Expressive Words](https://github.com/grandyang/LeetCode-All-In-One/issues/809)|39.50%|Medium| -|808|[Soup Servings](https://github.com/grandyang/LeetCode-All-In-One/issues/808)|33.60%|Medium| -|807|[Max Increase to Keep City Skyline](https://github.com/grandyang/LeetCode-All-In-One/issues/807)|79.60%|Medium| -|806|[Number of Lines To Write String](https://github.com/grandyang/LeetCode-All-In-One/issues/806)|62.10%|Easy| -|805|[Split Array With Same Average](https://github.com/grandyang/LeetCode-All-In-One/issues/805)|21.00%|Hard| -|804|[Unique Morse Code Words](https://github.com/grandyang/LeetCode-All-In-One/issues/804)|71.30%|Easy| -|803|[Bricks Falling When Hit](https://github.com/grandyang/LeetCode-All-In-One/issues/803)|22.90%|Hard| -|802|[Find Eventual Safe States](https://github.com/grandyang/LeetCode-All-In-One/issues/802)|39.20%|Medium| -|801|[Minimum Swaps To Make Sequences Increasing](https://github.com/grandyang/LeetCode-All-In-One/issues/801)|31.00%|Medium| -|800|[Similar RGB Color](https://github.com/grandyang/LeetCode-All-In-One/issues/800) $|54.50%|Easy| -|799|[Champagne Tower](https://github.com/grandyang/LeetCode-All-In-One/issues/799)|29.90%|Medium| -|798|[Smallest Rotation with Highest Score](https://github.com/grandyang/LeetCode-All-In-One/issues/798)|34.30%|Hard| -|797|[All Paths From Source to Target](https://github.com/grandyang/LeetCode-All-In-One/issues/797)|67.40%|Medium| -|796|[Rotate String](https://github.com/grandyang/LeetCode-All-In-One/issues/796)|49.60%|Easy| -|795|[Number of Subarrays with Bounded Maximum](https://github.com/grandyang/LeetCode-All-In-One/issues/795)|41.60%|Medium| -|794|[Valid Tic-Tac-Toe State](https://github.com/grandyang/LeetCode-All-In-One/issues/794)|27.80%|Medium| -|793|[Preimage Size of Factorial Zeroes Function](https://github.com/grandyang/LeetCode-All-In-One/issues/793)|40.80%|Hard| -|792|[Number of Matching Subsequences](https://github.com/grandyang/LeetCode-All-In-One/issues/792)|37.30%|Medium| -|791|[Custom Sort String](https://github.com/grandyang/LeetCode-All-In-One/issues/791)|59.40%|Medium| -|790|[Domino and Tromino Tiling](https://github.com/grandyang/LeetCode-All-In-One/issues/790)|32.80%|Medium| -|789|[Escape The Ghosts](https://github.com/grandyang/LeetCode-All-In-One/issues/789)|51.00%|Medium| -|788|[Rotated Digits](https://github.com/grandyang/LeetCode-All-In-One/issues/788)|51.00%|Easy| -|787|[Cheapest Flights Within K Stops](https://github.com/grandyang/LeetCode-All-In-One/issues/787)|29.90%|Medium| -|786|[K-th Smallest Prime Fraction](https://github.com/grandyang/LeetCode-All-In-One/issues/786)|32.50%|Hard| -|785|[Is Graph Bipartite](https://github.com/grandyang/LeetCode-All-In-One/issues/785)|38.50%|Medium| -|784|[Letter Case Permutation](https://github.com/grandyang/LeetCode-All-In-One/issues/784)|53.00%|Easy| -|783|[Minimum Distance Between BST Nodes](https://github.com/grandyang/LeetCode-All-In-One/issues/783)|47.80%|Easy| -|782|[Transform to Chessboard](https://github.com/grandyang/LeetCode-All-In-One/issues/782)|37.50%|Hard| -|781|[Rabbits in Forest](https://github.com/grandyang/LeetCode-All-In-One/issues/781)|49.80%|Medium| -|780|[Reaching Points](https://github.com/grandyang/LeetCode-All-In-One/issues/780)|23.90%|Hard| -|779|[K-th Symbol in Grammar](https://github.com/grandyang/LeetCode-All-In-One/issues/779)|37.30%|Medium| -|778|[Swim in Rising Water](https://github.com/grandyang/LeetCode-All-In-One/issues/778)|44.60%|Hard| -|777|[Swap Adjacent in LR String](https://github.com/grandyang/LeetCode-All-In-One/issues/777)|28.90%|Medium| -|776|[Split BST](https://github.com/grandyang/LeetCode-All-In-One/issues/776) $|49.90%|Medium| -|775|[Global and Local Inversions](https://github.com/grandyang/LeetCode-All-In-One/issues/775)|33.60%|Medium| -|774|[Minimize Max Distance to Gas Station](https://github.com/grandyang/LeetCode-All-In-One/issues/774) $|32.80%|Hard| -|773|[Sliding Puzzle](https://github.com/grandyang/LeetCode-All-In-One/issues/773)|46.50%|Hard| -|772|[Basic Calculator III](https://github.com/grandyang/LeetCode-All-In-One/issues/772) $|40.10%|Hard| -|771|[Jewels and Stones](https://github.com/grandyang/LeetCode-All-In-One/issues/771)|81.90%|Easy| +|1352|[Product of the Last K Numbers](https://github.com/grandyang/leetcode/issues/1352)|50.20%|Medium| +|1351|[Count Negative Numbers in a Sorted Matrix](https://github.com/grandyang/leetcode/issues/1351)|77.30%|Easy| +|1350|Students With Invalid Departments * $|89.90%|Easy| +|1349|[Maximum Students Taking Exam](https://github.com/grandyang/leetcode/issues/1349)|49.80%|Hard| +|1348|[Tweet Counts Per Frequency](https://github.com/grandyang/leetcode/issues/1348)|44.00%|Medium| +|1347|[Minimum Number of Steps to Make Two Strings Anagram](https://github.com/grandyang/leetcode/issues/1347)|78.00%|Medium| +|1346|[Check If N and Its Double Exist](https://github.com/grandyang/leetcode/issues/1346)|36.70%|Easy| +|1345|[Jump Game IV](https://github.com/grandyang/leetcode/issues/1345)|46.60%|Hard| +|1344|[Angle Between Hands of a Clock](https://github.com/grandyang/leetcode/issues/1344)|63.40%|Medium| +|1343|[Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold](https://github.com/grandyang/leetcode/issues/1343)|68.10%|Medium| +|1342|[Number of Steps to Reduce a Number to Zero](https://github.com/grandyang/leetcode/issues/1342)|84.90%|Easy| +|1341|Movie Rating *|43.80%|Medium| +|1340|[Jump Game V](https://github.com/grandyang/leetcode/issues/1340)|62.60%|Hard| +|1339|[Maximum Product of Splitted Binary Tree](https://github.com/grandyang/leetcode/issues/1339)|47.70%|Medium| +|1338|[Reduce Array Size to The Half](https://github.com/grandyang/leetcode/issues/1338)|69.20%|Medium| +|1337|[The K Weakest Rows in a Matrix](https://github.com/grandyang/leetcode/issues/1337)|71.40%|Easy| +|1336|Number of Transactions per Visit *|48.10%|Hard| +|1335|[Minimum Difficulty of a Job Schedule](https://github.com/grandyang/leetcode/issues/1335)|58.30%|Hard| +|1334|[Find the City With the Smallest Number of Neighbors at a Threshold Distance](https://github.com/grandyang/leetcode/issues/1334)|57.70%|Medium| +|1333|"Filter Restaurants by Vegan-Friendly| Price and Distance"|60.50%| +|1332|[Remove Palindromic Subsequences](https://github.com/grandyang/leetcode/issues/1332)|76.20%|Easy| +|1331|[Rank Transform of an Array](https://github.com/grandyang/leetcode/issues/1331)|59.80%|Easy| +|1330|[Reverse Subarray To Maximize Array Value](https://github.com/grandyang/leetcode/issues/1330)|41.30%|Hard| +|1329|[Sort the Matrix Diagonally](https://github.com/grandyang/leetcode/issues/1329)|83.00%|Medium| +|1328|[Break a Palindrome](https://github.com/grandyang/leetcode/issues/1328)|52.10%|Medium| +|1327|List the Products Ordered in a Period *|71.90%|Easy| +|1326|[Minimum Number of Taps to Open to Water a Garden](https://github.com/grandyang/leetcode/issues/1326)|51.60%|Hard| +|1325|[Delete Leaves With a Given Value](https://github.com/grandyang/leetcode/issues/1325)|74.40%|Medium| +|1324|[Print Words Vertically](https://github.com/grandyang/leetcode/issues/1324)|62.40%|Medium| +|1323|[Maximum 69 Number](https://github.com/grandyang/leetcode/issues/1323)|82.00%|Easy| +|1322|Ads Performance * $|60.10%|Easy| +|1321|Restaurant Growth *|53.40%|Medium| +|1320|[Minimum Distance to Type a Word Using Two Fingers](https://github.com/grandyang/leetcode/issues/1320)|59.80%|Hard| +|1319|[Number of Operations to Make Network Connected](https://github.com/grandyang/leetcode/issues/1319)|58.50%|Medium| +|1318|[Minimum Flips to Make a OR b Equal to c](https://github.com/grandyang/leetcode/issues/1318)|66.00%|Medium| +|1317|[Convert Integer to the Sum of Two No-Zero Integers](https://github.com/grandyang/leetcode/issues/1317)|56.00%|Easy| +|1316|[Distinct Echo Substrings](https://github.com/grandyang/leetcode/issues/1316)|49.70%|Hard| +|1315|[Sum of Nodes with Even-Valued Grandparent](https://github.com/grandyang/leetcode/issues/1315)|85.60%|Medium| +|1314|[Matrix Block Sum](https://github.com/grandyang/leetcode/issues/1314)|75.40%|Medium| +|1313|[Decompress Run-Length Encoded List](https://github.com/grandyang/leetcode/issues/1313)|85.90%|Easy| +|1312|[Minimum Insertion Steps to Make a String Palindrome](https://github.com/grandyang/leetcode/issues/1312)|65.70%|Hard| +|1311|[Get Watched Videos by Your Friends](https://github.com/grandyang/leetcode/issues/1311)|45.90%|Medium| +|1310|[XOR Queries of a Subarray](https://github.com/grandyang/leetcode/issues/1310)|72.20%|Medium| +|1309|[Decrypt String from Alphabet to Integer Mapping](https://github.com/grandyang/leetcode/issues/1309)|79.50%|Easy| +|1308|Running Total for Different Genders * $|88.20%|Medium| +|1307|[Verbal Arithmetic Puzzle](https://github.com/grandyang/leetcode/issues/1307)|34.80%|Hard| +|1306|[Jump Game III](https://github.com/grandyang/leetcode/issues/1306)|63.10%|Medium| +|1305|[All Elements in Two Binary Search Trees](https://github.com/grandyang/leetcode/issues/1305)|79.80%|Medium| +|1304|[Find N Unique Integers Sum up to Zero](https://github.com/grandyang/leetcode/issues/1304)|77.10%|Easy| +|1303|Find the Team Size * $|90.80%|Easy| +|1302|[Deepest Leaves Sum](https://github.com/grandyang/leetcode/issues/1302)|86.90%|Medium| +|1301|[Number of Paths with Max Score](https://github.com/grandyang/leetcode/issues/1301)|38.70%|Hard| +|1300|[Sum of Mutated Array Closest to Target](https://github.com/grandyang/leetcode/issues/1300)|43.10%|Medium| +|1299|[Replace Elements with Greatest Element on Right Side](https://github.com/grandyang/leetcode/issues/1299)|74.70%|Easy| +|1298|[Maximum Candies You Can Get from Boxes](https://github.com/grandyang/leetcode/issues/1298)|60.90%|Hard| +|1297|[Maximum Number of Occurrences of a Substring](https://github.com/grandyang/leetcode/issues/1297)|52.00%|Medium| +|1296|[Divide Array in Sets of K Consecutive Numbers](https://github.com/grandyang/leetcode/issues/1296)|56.60%|Medium| +|1295|[Find Numbers with Even Number of Digits](https://github.com/grandyang/leetcode/issues/1295)|77.00%|Easy| +|1294|Weather Type in Each Country * $|68.00%|Easy| +|1293|[Shortest Path in a Grid with Obstacles Elimination](https://github.com/grandyang/leetcode/issues/1293)|45.60%|Hard| +|1292|[Maximum Side Length of a Square with Sum Less than or Equal to Threshold](https://github.com/grandyang/leetcode/issues/1292)|52.10%|Medium| +|1291|[Sequential Digits](https://github.com/grandyang/leetcode/issues/1291)|60.90%|Medium| +|1290|[Convert Binary Number in a Linked List to Integer](https://github.com/grandyang/leetcode/issues/1290)|82.70%|Easy| +|1289|[Minimum Falling Path Sum II](https://github.com/grandyang/leetcode/issues/1289)|61.20%|Hard| +|1288|[Remove Covered Intervals](https://github.com/grandyang/leetcode/issues/1288)|57.40%|Medium| +|1287|[Element Appearing More Than 25% In Sorted Array](https://github.com/grandyang/leetcode/issues/1287)|59.50%|Easy| +|1286|[Iterator for Combination](https://github.com/grandyang/leetcode/issues/1286)|73.20%|Medium| +|1285|Find the Start and End Number of Continuous Ranges * $|88.30%|Medium| +|1284|[Minimum Number of Flips to Convert Binary Matrix to Zero Matrix](https://github.com/grandyang/leetcode/issues/1284)|72.00%|Hard| +|1283|[Find the Smallest Divisor Given a Threshold](https://github.com/grandyang/leetcode/issues/1283)|53.70%|Medium| +|1282|[Group the People Given the Group Size They Belong To](https://github.com/grandyang/leetcode/issues/1282)|85.20%|Medium| +|1281|[Subtract the Product and Sum of Digits of an Integer](https://github.com/grandyang/leetcode/issues/1281)|86.30%|Easy| +|1280|Students and Examinations * $|74.60%|Easy| +|1279|Traffic Light Controlled Intersection ~ $|75.30%|Easy| +|1278|[Palindrome Partitioning III](https://github.com/grandyang/leetcode/issues/1278)|60.90%|Hard| +|1277|[Count Square Submatrices with All Ones](https://github.com/grandyang/leetcode/issues/1277)|74.20%|Medium| +|1276|[Number of Burgers with No Waste of Ingredients](https://github.com/grandyang/leetcode/issues/1276)|50.60%|Medium| +|1275|[Find Winner on a Tic Tac Toe Game](https://github.com/grandyang/leetcode/issues/1275)|54.90%|Easy| +|1274|Number of Ships in a Rectangle $|68.60%|Hard| +|1273|Delete Tree Nodes $|61.20%|Medium| +|1272|Remove Interval $|61.10%|Medium| +|1271|Hexspeak $|56.30%|Easy| +|1270|All People Report to the Given Manager * $|88.10%|Medium| +|1269|[Number of Ways to Stay in the Same Place After Some Steps](https://github.com/grandyang/leetcode/issues/1269)|43.40%|Hard| +|1268|[Search Suggestions System](https://github.com/grandyang/leetcode/issues/1268)|65.40%|Medium| +|1267|Count Servers that Communicate|58.30%|Medium| +|1266|[Minimum Time Visiting All Points](https://github.com/grandyang/leetcode/issues/1266)|79.20%|Easy| +|1265|Print Immutable Linked List in Reverse $|94.30%|Medium| +|1264|Page Recommendations * $|67.70%|Medium| +|1263|[Minimum Moves to Move a Box to Their Target Location](https://github.com/grandyang/leetcode/issues/1263)|48.30%|Hard| +|1262|[Greatest Sum Divisible by Three](https://github.com/grandyang/leetcode/issues/1262)|50.80%|Medium| +|1261|[Find Elements in a Contaminated Binary Tree](https://github.com/grandyang/leetcode/issues/1261)|75.70%|Medium| +|1260|[Shift 2D Grid](https://github.com/grandyang/leetcode/issues/1260)|62.10%|Easy| +|1259|Handshakes That Don't Cross $|54.40%|Hard| +|1258|Synonymous Sentences $|57.40%|Medium| +|1257|Smallest Common Region $|62.10%|Medium| +|1256|Encode Number $|69.00%|Medium| +|1255|[Maximum Score Words Formed by Letters](https://github.com/grandyang/leetcode/issues/1255)|71.30%|Hard| +|1254|[Number of Closed Islands](https://github.com/grandyang/leetcode/issues/1254)|62.70%|Medium| +|1253|[Reconstruct a 2-Row Binary Matrix](https://github.com/grandyang/leetcode/issues/1253)|42.70%|Medium| +|1252|[Cells with Odd Values in a Matrix](https://github.com/grandyang/leetcode/issues/1252)|78.50%|Easy| +|1251|Average Selling Price * $|83.20%|Easy| +|1250|[Check If It Is a Good Array](https://github.com/grandyang/leetcode/issues/1250)|57.50%|Hard| +|1249|[Minimum Remove to Make Valid Parentheses](https://github.com/grandyang/leetcode/issues/1249)|65.00%|Medium| +|1248|[Count Number of Nice Subarrays](https://github.com/grandyang/leetcode/issues/1248)|57.60%|Medium| +|1247|[Minimum Swaps to Make Strings Equal](https://github.com/grandyang/leetcode/issues/1247)|63.60%|Medium| +|1246|Palindrome Removal $|45.80%|Hard| +|1245|Tree Diameter $|62.00%|Medium| +|1244|Design A Leaderboard $|67.30%|Medium| +|1243|Array Transformation $|50.10%|Easy| +|1242|Web Crawler Multithreaded ~ $|48.20%|Medium| +|1241|Number of Comments per Post * $|68.00%|Easy| +|1240|[Tiling a Rectangle with the Fewest Squares](https://github.com/grandyang/leetcode/issues/1240)|52.40%|Hard| +|1239|[Maximum Length of a Concatenated String with Unique Characters](https://github.com/grandyang/leetcode/issues/1239)|50.70%|Medium| +|1238|[Circular Permutation in Binary Representation](https://github.com/grandyang/leetcode/issues/1238)|67.90%|Medium| +|1237|[Find Positive Integer Solution for a Given Equation](https://github.com/grandyang/leetcode/issues/1237)|69.70%|Medium| +|1236|Web Crawler $|65.40%|Medium| +|1235|[Maximum Profit in Job Scheduling](https://github.com/grandyang/leetcode/issues/1235)|50.50%|Hard| +|1234|[Replace the Substring for Balanced String](https://github.com/grandyang/leetcode/issues/1234)|35.50%|Medium| +|1233|[Remove Sub-Folders from the Filesystem](https://github.com/grandyang/leetcode/issues/1233)|64.50%|Medium| +|1232|[Check If It Is a Straight Line](https://github.com/grandyang/leetcode/issues/1232)|42.30%|Easy| +|1231|Divide Chocolate $|55.50%|Hard| +|1230|Toss Strange Coins $|50.80%|Medium| +|1229|Meeting Scheduler $|54.70%|Medium| +|1228|Missing Number In Arithmetic Progression $|51.20%|Medium| +|1227|[Airplane Seat Assignment Probability](https://github.com/grandyang/leetcode/issues/1227)|63.00%|Medium| +|1226|The Dining Philosophers ~|60.20%|Medium| +|1225|Report Contiguous Dates *|63.80%|Hard| +|1224|[Maximum Equal Frequency](https://github.com/grandyang/leetcode/issues/1224)|36.20%|Hard| +|1223|[Dice Roll Simulation](https://github.com/grandyang/leetcode/issues/1223)|47.40%|Hard| +|1222|[Queens That Can Attack the King](https://github.com/grandyang/leetcode/issues/1222)|70.20%|Medium| +|1221|[Split a String in Balanced Strings](https://github.com/grandyang/leetcode/issues/1221)|84.60%|Easy| +|1220|[Count Vowels Permutation](https://github.com/grandyang/leetcode/issues/1220)|56.60%|Hard| +|1219|[Path with Maximum Gold](https://github.com/grandyang/leetcode/issues/1219)|66.10%|Medium| +|1218|[Longest Arithmetic Subsequence of Given Difference](https://github.com/grandyang/leetcode/issues/1218)|48.10%|Medium| +|1217|[Minimum Cost to Move Chips to The Same Position](https://github.com/grandyang/leetcode/issues/1217)|70.70%|Easy| +|1216|Valid Palindrome III $|50.80%|Hard| +|1215|Stepping Numbers $|44.60%|Medium| +|1214|Two Sum BSTs $|67.30%|Medium| +|1213|Intersection of Three Sorted Arrays $|79.80%|Easy| +|1212|Team Scores in Football Tournament *|57.00%|Medium| +|1211|Queries Quality and Percentage *|70.40%|Easy| +|1210|[Minimum Moves to Reach Target with Rotations](https://github.com/grandyang/leetcode/issues/1210)|47.50%|Hard| +|1209|[Remove All Adjacent Duplicates in String II](https://github.com/grandyang/leetcode/issues/1209)|56.40%|Medium| +|1208|[Get Equal Substrings Within Budget](https://github.com/grandyang/leetcode/issues/1208)|45.30%|Medium| +|1207|[Unique Number of Occurrences](https://github.com/grandyang/leetcode/issues/1207)|72.40%|Easy| +|1206|[Design Skiplist](https://github.com/grandyang/leetcode/issues/1206)|59.60%|Hard| +|1205|Monthly Transactions II *|45.30%|Medium| +|1204|Last Person to Fit in the Bus *|73.00%|Medium| +|1203|[Sort Items by Groups Respecting Dependencies](https://github.com/grandyang/leetcode/issues/1203)|48.80%|Hard| +|1202|[Smallest String With Swaps](https://github.com/grandyang/leetcode/issues/1202)|50.50%|Medium| +|1201|[Ugly Number III](https://github.com/grandyang/leetcode/issues/1201)|27.20%|Medium| +|1200|[Minimum Absolute Difference](https://github.com/grandyang/leetcode/issues/1200)|67.30%|Easy| +|1199|Minimum Time to Build Blocks $|39.40%|Hard| +|1198|Find Smallest Common Element in All Rows $|76.30%|Medium| +|1197|Minimum Knight Moves $|38.60%|Medium| +|1196|How Many Apples Can You Put into the Basket $|68.30%|Easy| +|1195|Fizz Buzz Multithreaded ~|71.40%|Medium| +|1194|Tournament Winners *|52.70%|Hard| +|1193|Monthly Transactions I *|68.70%|Medium| +|1192|[Critical Connections in a Network](https://github.com/grandyang/leetcode/issues/1192)|51.80%|Hard| +|1191|[K-Concatenation Maximum Sum](https://github.com/grandyang/leetcode/issues/1191)|24.60%|Medium| +|1190|[Reverse Substrings Between Each Pair of Parentheses](https://github.com/grandyang/leetcode/issues/1190)|65.00%|Medium| +|1189|[Maximum Number of Balloons](https://github.com/grandyang/leetcode/issues/1189)|62.00%|Easy| +|1188|Design Bounded Blocking Queue ~|73.20%|Medium| +|1187|[Make Array Strictly Increasing](https://github.com/grandyang/leetcode/issues/1187)|43.80%|Hard| +|1186|[Maximum Subarray Sum with One Deletion](https://github.com/grandyang/leetcode/issues/1186)|39.80%|Medium| +|1185|[Day of the Week](https://github.com/grandyang/leetcode/issues/1185)|59.90%|Easy| +|1184|[Distance Between Bus Stops](https://github.com/grandyang/leetcode/issues/1184)|53.90%|Easy| +|1183|Maximum Number of Ones $|58.70%|Hard| +|1182|Shortest Distance to Target Color $|54.30%|Medium| +|1181|Before and After Puzzle $|44.70%|Medium| +|1180|Count Substrings with Only One Distinct Letter $|78.30%|Easy| +|1179|Reformat Department Table *|82.10%|Easy| +|1178|[Number of Valid Words for Each Puzzle](https://github.com/grandyang/leetcode/issues/1178)|40.80%|Hard| +|1177|[Can Make Palindrome from Substring](https://github.com/grandyang/leetcode/issues/1177)|36.50%|Medium| +|1176|Diet Plan Performance $|53.50%|Easy| +|1175|[Prime Arrangements](https://github.com/grandyang/leetcode/issues/1175)|51.90%|Medium| +|1174|Immediate Food Delivery II *|63.10%|Medium| +|1173|Immediate Food Delivery I *|83.10%|Easy| +|1172|[Dinner Plate Stacks](https://github.com/grandyang/leetcode/issues/1172)|36.40%|Hard| +|1171|[Remove Zero Sum Consecutive Nodes from Linked List](https://github.com/grandyang/leetcode/issues/1171)|41.90%|Medium| +|1170|[Compare Strings by Frequency of the Smallest Character](https://github.com/grandyang/leetcode/issues/1170)|60.60%|Medium| +|1169|[Invalid Transactions](https://github.com/grandyang/leetcode/issues/1169)|30.40%|Medium| +|1168|Optimize Water Distribution in a Village $|62.30%|Hard| +|1167|Minimum Cost to Connect Sticks $|65.70%|Medium| +|1166|Design File System $|59.00%|Medium| +|1165|Single-Row Keyboard $|85.50%|Easy| +|1164|Product Price at a Given Date *|69.00%|Medium| +|1163|[Last Substring in Lexicographical Order](https://github.com/grandyang/leetcode/issues/1163)|36.00%|Hard| +|1162|[As Far from Land as Possible](https://github.com/grandyang/leetcode/issues/1162)|46.60%|Medium| +|1161|[Maximum Level Sum of a Binary Tree](https://github.com/grandyang/leetcode/issues/1161)|67.50%|Medium| +|1160|[Find Words That Can Be Formed by Characters](https://github.com/grandyang/leetcode/issues/1160)|67.80%|Easy| +|1159|Market Analysis II *|57.00%|Hard| +|1158|Market Analysis I *|65.00%|Medium| +|1157|[Online Majority Element In Subarray](https://github.com/grandyang/leetcode/issues/1157)|41.60%|Hard| +|1156|[Swap For Longest Repeated Character Substring](https://github.com/grandyang/leetcode/issues/1156)|47.20%|Medium| +|1155|[Number of Dice Rolls With Target Sum](https://github.com/grandyang/leetcode/issues/1155)|47.70%|Medium| +|1154|[Day of the Year](https://github.com/grandyang/leetcode/issues/1154)|50.10%|Easy| +|1153|String Transforms Into Another String $|35.60%|Hard| +|1152|Analyze User Website Visit Pattern $|43.20%|Medium| +|1151|Minimum Swaps to Group All 1's Together $|51.90%|Medium| +|1150|Check If a Number Is Majority Element in a Sorted Array $|57.10%|Easy| +|1149|Article Views II * $|48.20%|Medium| +|1148|Article Views I * $|77.10%|Easy| +|1147|[Longest Chunked Palindrome Decomposition](https://github.com/grandyang/leetcode/issues/1147)|59.80%|Hard| +|1146|[Snapshot Array](https://github.com/grandyang/leetcode/issues/1146)|37.00%|Medium| +|1145|[Binary Tree Coloring Game](https://github.com/grandyang/leetcode/issues/1145)|51.10%|Medium| +|1144|[Decrease Elements To Make Array Zigzag](https://github.com/grandyang/leetcode/issues/1144)|46.50%|Medium| +|1143|[Longest Common Subsequence](https://github.com/grandyang/leetcode/issues/1143)|58.80%|Medium| +|1142|User Activity for the Past 30 Days II * $|35.50%|Easy| +|1141|User Activity for the Past 30 Days I * $|54.60%|Easy| +|1140|[Stone Game II](https://github.com/grandyang/leetcode/issues/1140)|64.60%|Medium| +|1139|[Largest 1-Bordered Square](https://github.com/grandyang/leetcode/issues/1139)|48.70%|Medium| +|1138|[Alphabet Board Path](https://github.com/grandyang/leetcode/issues/1138)|51.60%|Medium| +|1137|[N-th Tribonacci Number](https://github.com/grandyang/leetcode/issues/1137)|55.70%|Easy| +|1136|Parallel Courses $|60.70%|Medium| +|1135|Connecting Cities With Minimum Cost $|60.00%|Easy| +|1134|Armstrong Number $|78.50%|Easy| +|1133|Largest Unique Number $|67.20%|Easy| +|1132|Reported Posts II * $|34.40%|Medium| +|1131|[Maximum of Absolute Value Expression](https://github.com/grandyang/leetcode/issues/1131)|51.30%|Medium| +|1130|[Minimum Cost Tree From Leaf Values](https://github.com/grandyang/leetcode/issues/1130)|67.40%|Medium| +|1129|[Shortest Path with Alternating Colors](https://github.com/grandyang/leetcode/issues/1129)|40.70%|Medium| +|1128|[Number of Equivalent Domino Pairs](https://github.com/grandyang/leetcode/issues/1128)|45.90%|Easy| +|1127|User Purchase Platform * $|50.80%|Hard| +|1126|Active Businesses * $|68.40%|Medium| +|1125|[Smallest Sufficient Team](https://github.com/grandyang/leetcode/issues/1125)|47.20%|Hard| +|1124|[Longest Well-Performing Interval](https://github.com/grandyang/leetcode/issues/1124)|33.50%|Medium| +|1123|[Lowest Common Ancestor of Deepest Leaves](https://github.com/grandyang/leetcode/issues/1123)|68.50%|Medium| +|1122|[Relative Sort Array](https://github.com/grandyang/leetcode/issues/1122)|67.90%|Easy| +|1121|Divide Array Into Increasing Sequences $|59.00%|Hard| +|1120|Maximum Average Subtree $|64.50%|Medium| +|1119|Remove Vowels from a String $|90.50%|Easy| +|1118|Number of Days in a Month $|57.30%|Easy| +|1117|Building H2O ~|53.10%|Medium| +|1116|Print Zero Even Odd ~|58.20%|Medium| +|1115|Print FooBar Alternately ~|59.00%|Medium| +|1114|Print in Order ~|67.60%|Easy| +|1113|Reported Posts * $|66.40%|Medium| +|1112|Highest Grade For Each Student * $|72.80%|Medium| +|1111|[Maximum Nesting Depth of Two Valid Parentheses Strings](https://github.com/grandyang/leetcode/issues/1111)|72.70%|Medium| +|1110|[Delete Nodes And Return Forest](https://github.com/grandyang/leetcode/issues/1110)|68.00%|Medium| +|1109|[Corporate Flight Bookings](https://github.com/grandyang/leetcode/issues/1109)|54.30%|Medium| +|1108|[Defanging an IP Address](https://github.com/grandyang/leetcode/issues/1108)|88.40%|Easy| +|1107|New Users Daily Count * $|46.10%|Medium| +|1106|[Parsing A Boolean Expression](https://github.com/grandyang/leetcode/issues/1106)|59.50%|Hard| +|1105|[Filling Bookcase Shelves](https://github.com/grandyang/leetcode/issues/1105)|57.50%|Medium| +|1104|[Path In Zigzag Labelled Binary Tree](https://github.com/grandyang/leetcode/issues/1104)|73.50%|Medium| +|1103|[Distribute Candies to People](https://github.com/grandyang/leetcode/issues/1103)|63.40%|Easy| +|1102|Path With Maximum Minimum Value $|51.00%|Medium| +|1101|The Earliest Moment When Everyone Become Friends $|67.80%|Medium| +|1100|Find K-Length Substrings With No Repeated Characters $|73.10%|Medium| +|1099|Two Sum Less Than K $|60.80%|Easy| +|1098|Unpopular Books * $|45.50%|Medium| +|1097|Game Play Analysis V * $|57.00%|Hard| +|1096|[Brace Expansion II](https://github.com/grandyang/leetcode/issues/1096)|62.90%|Hard| +|1095|[Find in Mountain Array](https://github.com/grandyang/leetcode/issues/1095)|36.10%|Hard| +|1094|[Car Pooling](https://github.com/grandyang/leetcode/issues/1094)|59.70%|Medium| +|1093|[Statistics from a Large Sample](https://github.com/grandyang/leetcode/issues/1093)|48.50%|Medium| +|1092|[Shortest Common Supersequence](https://github.com/grandyang/leetcode/issues/1092)|53.40%|Hard| +|1091|[Shortest Path in Binary Matrix](https://github.com/grandyang/leetcode/issues/1091)|40.30%|Medium| +|1090|[Largest Values From Labels](https://github.com/grandyang/leetcode/issues/1090)|60.10%|Medium| +|1089|[Duplicate Zeros](https://github.com/grandyang/leetcode/issues/1089)|51.60%|Easy| +|1088|[Confusing Number II](https://github.com/grandyang/leetcode/issues/1088)|45.60%|Hard| +|1087|Brace Expansion $|63.20%|Medium| +|1086|High Five $|77.50%|Easy| +|1085|Sum of Digits in the Minimum Number $|75.10%|Easy| +|1084|Sales Analysis III * $|54.80%|Easy| +|1083|Sales Analysis II * $|50.80%|Easy| +|1082|Sales Analysis I * $|73.90%|Easy| +|1081|[Smallest Subsequence of Distinct Characters](https://github.com/grandyang/leetcode/issues/1081)|53.60%|Medium| +|1080|[Insufficient Nodes in Root to Leaf Paths](https://github.com/grandyang/leetcode/issues/1080)|50.10%|Medium| +|1079|[Letter Tile Possibilities](https://github.com/grandyang/leetcode/issues/1079)|75.90%|Medium| +|1078|[Occurrences After Bigram](https://github.com/grandyang/leetcode/issues/1078)|65.00%|Easy| +|1077|Project Employees III * $|78.00%|Medium| +|1076|Project Employees II * $|52.80%|Easy| +|1075|Project Employees I * $|66.20%|Easy| +|1074|[Number of Submatrices That Sum to Target](https://github.com/grandyang/leetcode/issues/1074)|62.00%|Hard| +|1073|[Adding Two Negabinary Numbers](https://github.com/grandyang/leetcode/issues/1073)|34.80%|Medium| +|1072|[Flip Columns For Maximum Number of Equal Rows](https://github.com/grandyang/leetcode/issues/1072)|61.60%|Medium| +|1071|[Greatest Common Divisor of Strings](https://github.com/grandyang/leetcode/issues/1071)|51.50%|Easy| +|1070|Product Sales Analysis III * $|49.90%|Medium| +|1069|Product Sales Analysis II * $|83.30%|Easy| +|1068|Product Sales Analysis I * $|82.10%|Easy| +|1067|Digit Count in Range $|41.60%|Hard| +|1066|Campus Bikes II $|54.20%|Medium| +|1065|Index Pairs of a String $|61.00%|Easy| +|1064|Fixed Point $|64.90%|Easy| +|1063|Number of Valid Subarrays $|72.10%|Hard| +|1062|Longest Repeating Substring $|58.40%|Medium| +|1061|Lexicographically Smallest Equivalent String $|66.90%|Medium| +|1060|Missing Element in Sorted Array $|54.80%|Medium| +|1059|All Paths from Source Lead to Destination $|43.00%|Medium| +|1058|Minimize Rounding Error to Meet Target $|43.70%|Medium| +|1057|[Campus Bikes ](https://github.com/grandyang/leetcode/issues/1057) $|57.80%|Medium| +|1056|[Confusing Number ](https://github.com/grandyang/leetcode/issues/1056) $|47.00%|Easy| +|1055|[Shortest Way to Form String ](https://github.com/grandyang/leetcode/issues/1055) $|57.20%|Medium| +|1054|[Distant Barcodes](https://github.com/grandyang/leetcode/issues/1054)|44.20%|Medium| +|1053|[Previous Permutation With One Swap](https://github.com/grandyang/leetcode/issues/1053)|51.20%|Medium| +|1052|[Grumpy Bookstore Owner](https://github.com/grandyang/leetcode/issues/1052)|55.90%|Medium| +|1051|[Height Checker](https://github.com/grandyang/leetcode/issues/1051)|72.10%|Easy| +|1050|Actors and Directors Who Cooperated At Least Three Times * $|72.40%|Easy| +|1049|[Last Stone Weight II](https://github.com/grandyang/leetcode/issues/1049)|45.40%|Medium| +|1048|[Longest String Chain](https://github.com/grandyang/leetcode/issues/1048)|55.50%|Medium| +|1047|[Remove All Adjacent Duplicates In String](https://github.com/grandyang/leetcode/issues/1047)|70.90%|Easy| +|1046|[Last Stone Weight](https://github.com/grandyang/leetcode/issues/1046)|62.40%|Easy| +|1045|Customers Who Bought All Products * $|68.40%|Medium| +|1044|[Longest Duplicate Substring](https://github.com/grandyang/leetcode/issues/1044)|31.40%|Hard| +|1043|[Partition Array for Maximum Sum](https://github.com/grandyang/leetcode/issues/1043)|67.10%|Medium| +|1042|[Flower Planting With No Adjacent](https://github.com/grandyang/leetcode/issues/1042)|48.80%|Medium| +|1041|[Robot Bounded In Circle](https://github.com/grandyang/leetcode/issues/1041)|55.00%|Medium| +|1040|[Moving Stones Until Consecutive II](https://github.com/grandyang/leetcode/issues/1040)|54.10%|Medium| +|1039|[Minimum Score Triangulation of Polygon](https://github.com/grandyang/leetcode/issues/1039)|50.10%|Medium| +|1038|[Binary Search Tree to Greater Sum Tree](https://github.com/grandyang/leetcode/issues/1038)|82.30%|Medium| +|1037|[Valid Boomerang](https://github.com/grandyang/leetcode/issues/1037)|37.80%|Easy| +|1036|[Escape a Large Maze](https://github.com/grandyang/leetcode/issues/1036)|34.50%|Hard| +|1035|[Uncrossed Lines](https://github.com/grandyang/leetcode/issues/1035)|56.10%|Medium| +|1034|[Coloring A Border](https://github.com/grandyang/leetcode/issues/1034)|45.70%|Medium| +|1033|[Moving Stones Until Consecutive](https://github.com/grandyang/leetcode/issues/1033)|43.20%|Easy| +|1032|[Stream of Characters](https://github.com/grandyang/leetcode/issues/1032)|48.60%|Hard| +|1031|[Maximum Sum of Two Non-Overlapping Subarrays](https://github.com/grandyang/leetcode/issues/1031)|58.90%|Medium| +|1030|[Matrix Cells in Distance Order](https://github.com/grandyang/leetcode/issues/1030)|66.90%|Easy| +|1029|[Two City Scheduling](https://github.com/grandyang/leetcode/issues/1029)|57.90%|Medium| +|1028|[Recover a Tree From Preorder Traversal](https://github.com/grandyang/leetcode/issues/1028)|70.90%|Hard| +|1027|[Longest Arithmetic Subsequence](https://github.com/grandyang/leetcode/issues/1027)|49.80%|Medium| +|1026|[Maximum Difference Between Node and Ancestor](https://github.com/grandyang/leetcode/issues/1026)|69.40%|Medium| +|1025|[Divisor Game](https://github.com/grandyang/leetcode/issues/1025)|66.20%|Easy| +|1024|[Video Stitching](https://github.com/grandyang/leetcode/issues/1024)|49.00%|Medium| +|1023|[Camelcase Matching](https://github.com/grandyang/leetcode/issues/1023)|57.40%|Medium| +|1022|[Sum of Root To Leaf Binary Numbers](https://github.com/grandyang/leetcode/issues/1022)|71.50%|Easy| +|1021|[Remove Outermost Parentheses](https://github.com/grandyang/leetcode/issues/1021)|79.00%|Easy| +|1020|[Number of Enclaves](https://github.com/grandyang/leetcode/issues/1020)|58.90%|Medium| +|1019|[Next Greater Node In Linked List](https://github.com/grandyang/leetcode/issues/1019)|58.20%|Medium| +|1018|[Binary Prefix Divisible By 5](https://github.com/grandyang/leetcode/issues/1018)|47.80%|Easy| +|1017|[Convert to Base -2](https://github.com/grandyang/leetcode/issues/1017)|59.60%|Medium| +|1016|[Binary String With Substrings Representing 1 To N](https://github.com/grandyang/leetcode/issues/1016)|58.90%|Medium| +|1015|[Smallest Integer Divisible by K](https://github.com/grandyang/leetcode/issues/1015)|41.80%|Medium| +|1014|[Best Sightseeing Pair](https://github.com/grandyang/leetcode/issues/1014)|52.90%|Medium| +|1013|[Partition Array Into Three Parts With Equal Sum](https://github.com/grandyang/leetcode/issues/1013)|49.10%|Easy| +|1012|[Numbers With Repeated Digits](https://github.com/grandyang/leetcode/issues/1012)|37.80%|Hard| +|1011|[Capacity To Ship Packages Within D Days](https://github.com/grandyang/leetcode/issues/1011)|59.70%|Medium| +|1010|[Pairs of Songs With Total Durations Divisible by 60](https://github.com/grandyang/leetcode/issues/1010)|50.10%|Medium| +|1009|[Complement of Base 10 Integer](https://github.com/grandyang/leetcode/issues/1009)|61.50%|Easy| +|1008|[Construct Binary Search Tree from Preorder Traversal](https://github.com/grandyang/leetcode/issues/1008)|78.80%|Medium| +|1007|[Minimum Domino Rotations For Equal Row](https://github.com/grandyang/leetcode/issues/1007)|50.90%|Medium| +|1006|[Clumsy Factorial](https://github.com/grandyang/leetcode/issues/1006)|53.70%|Medium| +|1005|[Maximize Sum Of Array After K Negations](https://github.com/grandyang/leetcode/issues/1005)|52.40%|Easy| +|1004|[Max Consecutive Ones III](https://github.com/grandyang/leetcode/issues/1004)|60.50%|Medium| +|1003|[Check If Word Is Valid After Substitutions](https://github.com/grandyang/leetcode/issues/1003)|56.10%|Medium| +|1002|[Find Common Characters](https://github.com/grandyang/leetcode/issues/1002)|68.10%|Easy| +|1001|[Grid Illumination](https://github.com/grandyang/leetcode/issues/1001)|36.60%|Hard| +|1000|[Minimum Cost to Merge Stones](https://github.com/grandyang/leetcode/issues/1000)|40.40%|Hard| +|999|[Available Captures for Rook](https://github.com/grandyang/leetcode/issues/999)|66.80%|Easy| +|998|[Maximum Binary Tree II](https://github.com/grandyang/leetcode/issues/998)|63.70%|Medium| +|997|[Find the Town Judge](https://github.com/grandyang/leetcode/issues/997)|49.80%|Easy| +|996|[Number of Squareful Arrays](https://github.com/grandyang/leetcode/issues/996)|48.00%|Hard| +|995|[Minimum Number of K Consecutive Bit Flips](https://github.com/grandyang/leetcode/issues/995)|49.60%|Hard| +|994|[Rotting Oranges](https://github.com/grandyang/leetcode/issues/994)|49.60%|Medium| +|993|[Cousins in Binary Tree](https://github.com/grandyang/leetcode/issues/993)|52.20%|Easy| +|992|[Subarrays with K Different Integers](https://github.com/grandyang/leetcode/issues/992)|50.40%|Hard| +|991|[Broken Calculator](https://github.com/grandyang/leetcode/issues/991)|46.40%|Medium| +|990|[Satisfiability of Equality Equations](https://github.com/grandyang/leetcode/issues/990)|46.50%|Medium| +|989|[Add to Array-Form of Integer](https://github.com/grandyang/leetcode/issues/989)|44.70%|Easy| +|988|[Smallest String Starting From Leaf](https://github.com/grandyang/leetcode/issues/988)|46.60%|Medium| +|987|[Vertical Order Traversal of a Binary Tree](https://github.com/grandyang/leetcode/issues/987)|37.60%|Medium| +|986|[Interval List Intersections](https://github.com/grandyang/leetcode/issues/986)|68.10%|Medium| +|985|[Sum of Even Numbers After Queries](https://github.com/grandyang/leetcode/issues/985)|60.70%|Easy| +|984|[String Without AAA or BBB](https://github.com/grandyang/leetcode/issues/984)|38.50%|Medium| +|983|[Minimum Cost For Tickets](https://github.com/grandyang/leetcode/issues/983)|62.60%|Medium| +|982|[Triples with Bitwise AND Equal To Zero](https://github.com/grandyang/leetcode/issues/982)|56.10%|Hard| +|981|[Time Based Key-Value Store](https://github.com/grandyang/leetcode/issues/981)|54.00%|Medium| +|980|[Unique Paths III](https://github.com/grandyang/leetcode/issues/980)|77.10%|Hard| +|979|[Distribute Coins in Binary Tree](https://github.com/grandyang/leetcode/issues/979)|69.30%|Medium| +|978|[Longest Turbulent Subarray](https://github.com/grandyang/leetcode/issues/978)|46.60%|Medium| +|977|[Squares of a Sorted Array](https://github.com/grandyang/leetcode/issues/977)|72.40%|Easy| +|976|[Largest Perimeter Triangle](https://github.com/grandyang/leetcode/issues/976)|58.50%|Easy| +|975|[Odd Even Jump](https://github.com/grandyang/leetcode/issues/975)|41.70%|Hard| +|974|[Subarray Sums Divisible by K](https://github.com/grandyang/leetcode/issues/974)|50.30%|Medium| +|973|[K Closest Points to Origin](https://github.com/grandyang/leetcode/issues/973)|64.40%|Medium| +|972|[Equal Rational Numbers](https://github.com/grandyang/leetcode/issues/972)|41.80%|Hard| +|971|[Flip Binary Tree To Match Preorder Traversal](https://github.com/grandyang/leetcode/issues/971)|46.10%|Medium| +|970|[Powerful Integers](https://github.com/grandyang/leetcode/issues/970)|39.90%|Easy| +|969|[Pancake Sorting](https://github.com/grandyang/leetcode/issues/969)|68.40%|Medium| +|968|[Binary Tree Cameras](https://github.com/grandyang/leetcode/issues/968)|38.40%|Hard| +|967|[Numbers With Same Consecutive Differences](https://github.com/grandyang/leetcode/issues/967)|44.30%|Medium| +|966|[Vowel Spellchecker](https://github.com/grandyang/leetcode/issues/966)|47.70%|Medium| +|965|[Univalued Binary Tree](https://github.com/grandyang/leetcode/issues/965)|67.60%|Easy| +|964|[Least Operators to Express Number](https://github.com/grandyang/leetcode/issues/964)|44.70%|Hard| +|963|[Minimum Area Rectangle II](https://github.com/grandyang/leetcode/issues/963)|51.60%|Medium| +|962|[Maximum Width Ramp](https://github.com/grandyang/leetcode/issues/962)|46.00%|Medium| +|961|[N-Repeated Element in Size 2N Array](https://github.com/grandyang/leetcode/issues/961)|74.20%|Easy| +|960|[Delete Columns to Make Sorted III](https://github.com/grandyang/leetcode/issues/960)|54.00%|Hard| +|959|[Regions Cut By Slashes](https://github.com/grandyang/leetcode/issues/959)|66.70%|Medium| +|958|[Check Completeness of a Binary Tree](https://github.com/grandyang/leetcode/issues/958)|52.30%|Medium| +|957|[Prison Cells After N Days](https://github.com/grandyang/leetcode/issues/957)|40.30%|Medium| +|956|[Tallest Billboard](https://github.com/grandyang/leetcode/issues/956)|39.70%|Hard| +|955|[Delete Columns to Make Sorted II](https://github.com/grandyang/leetcode/issues/955)|33.40%|Medium| +|954|[Array of Doubled Pairs](https://github.com/grandyang/leetcode/issues/954)|35.30%|Medium| +|953|[Verifying an Alien Dictionary](https://github.com/grandyang/leetcode/issues/953)|52.90%|Easy| +|952|[Largest Component Size by Common Factor](https://github.com/grandyang/leetcode/issues/952)|36.00%|Hard| +|951|[Flip Equivalent Binary Trees](https://github.com/grandyang/leetcode/issues/951)|65.50%|Medium| +|950|[Reveal Cards In Increasing Order](https://github.com/grandyang/leetcode/issues/950)|75.00%|Medium| +|949|[Largest Time for Given Digits](https://github.com/grandyang/leetcode/issues/949)|36.30%|Medium| +|948|[Bag of Tokens](https://github.com/grandyang/leetcode/issues/948)|46.20%|Medium| +|947|[Most Stones Removed with Same Row or Column](https://github.com/grandyang/leetcode/issues/947)|55.30%|Medium| +|946|[Validate Stack Sequences](https://github.com/grandyang/leetcode/issues/946)|63.10%|Medium| +|945|[Minimum Increment to Make Array Unique](https://github.com/grandyang/leetcode/issues/945)|46.50%|Medium| +|944|[Delete Columns to Make Sorted](https://github.com/grandyang/leetcode/issues/944)|70.90%|Easy| +|943|[Find the Shortest Superstring](https://github.com/grandyang/leetcode/issues/943)|43.20%|Hard| +|942|[DI String Match](https://github.com/grandyang/leetcode/issues/942)|73.20%|Easy| +|941|[Valid Mountain Array](https://github.com/grandyang/leetcode/issues/941)|32.20%|Easy| +|940|[Distinct Subsequences II](https://github.com/grandyang/leetcode/issues/940)|41.50%|Hard| +|939|[Minimum Area Rectangle](https://github.com/grandyang/leetcode/issues/939)|52.00%|Medium| +|938|[Range Sum of BST](https://github.com/grandyang/leetcode/issues/938)|79.90%|Easy| +|937|[Reorder Data in Log Files](https://github.com/grandyang/leetcode/issues/937)|53.70%|Easy| +|936|[Stamping The Sequence](https://github.com/grandyang/leetcode/issues/936)|38.10%|Hard| +|935|[Knight Dialer](https://github.com/grandyang/leetcode/issues/935)|43.80%|Medium| +|934|[Shortest Bridge](https://github.com/grandyang/leetcode/issues/934)|46.50%|Medium| +|933|[Number of Recent Calls](https://github.com/grandyang/leetcode/issues/933)|70.90%|Easy| +|932|[Beautiful Array](https://github.com/grandyang/leetcode/issues/932)|57.10%|Medium| +|931|[Minimum Falling Path Sum](https://github.com/grandyang/leetcode/issues/931)|61.30%|Medium| +|930|[Binary Subarrays With Sum](https://github.com/grandyang/leetcode/issues/930)|41.40%|Medium| +|929|[Unique Email Addresses](https://github.com/grandyang/leetcode/issues/929)|67.60%|Easy| +|928|[Minimize Malware Spread II](https://github.com/grandyang/leetcode/issues/928)|40.10%|Hard| +|927|[Three Equal Parts](https://github.com/grandyang/leetcode/issues/927)|32.80%|Hard| +|926|[Flip String to Monotone Increasing](https://github.com/grandyang/leetcode/issues/926)|51.60%|Medium| +|925|[Long Pressed Name](https://github.com/grandyang/leetcode/issues/925)|45.00%|Easy| +|924|[Minimize Malware Spread](https://github.com/grandyang/leetcode/issues/924)|41.70%|Hard| +|923|[3Sum With Multiplicity](https://github.com/grandyang/leetcode/issues/923)|35.30%|Medium| +|922|[Sort Array By Parity II](https://github.com/grandyang/leetcode/issues/922)|68.30%|Easy| +|921|[Minimum Add to Make Parentheses Valid](https://github.com/grandyang/leetcode/issues/921)|72.30%|Medium| +|920|[Number of Music Playlists](https://github.com/grandyang/leetcode/issues/920)|45.70%|Hard| +|919|[Complete Binary Tree Inserter](https://github.com/grandyang/leetcode/issues/919)|55.70%|Medium| +|918|[Maximum Sum Circular Subarray](https://github.com/grandyang/leetcode/issues/918)|33.20%|Medium| +|917|[Reverse Only Letters](https://github.com/grandyang/leetcode/issues/917)|56.30%|Easy| +|916|[Word Subsets](https://github.com/grandyang/leetcode/issues/916)|45.90%|Medium| +|915|[Partition Array into Disjoint Intervals](https://github.com/grandyang/leetcode/issues/915)|43.90%|Medium| +|914|[X of a Kind in a Deck of Cards](https://github.com/grandyang/leetcode/issues/914)|34.00%|Easy| +|913|[Cat and Mouse](https://github.com/grandyang/leetcode/issues/913)|29.90%|Hard| +|912|[Sort an Array](https://github.com/grandyang/leetcode/issues/912)|62.90%|Medium| +|911|[Online Election](https://github.com/grandyang/leetcode/issues/911)|48.30%|Medium| +|910|[Smallest Range II](https://github.com/grandyang/leetcode/issues/910)|24.90%|Medium| +|909|[Snakes and Ladders](https://github.com/grandyang/leetcode/issues/909)|36.10%|Easy| +|908|[Smallest Range I](https://github.com/grandyang/leetcode/issues/908)|65.00%|Easy| +|907|[Sum of Subarray Minimums](https://github.com/grandyang/leetcode/issues/907)|29.40%|Medium| +|906|[Super Palindromes](https://github.com/grandyang/leetcode/issues/906)|30.80%|Hard| +|905|[Sort Array By Parity](https://github.com/grandyang/leetcode/issues/905)|72.60%|Easy| +|904|[Fruit Into Baskets](https://github.com/grandyang/leetcode/issues/904)|41.70%|Medium| +|903|[Valid Permutations for DI Sequence](https://github.com/grandyang/leetcode/issues/903)|45.10%|Hard| +|902|[Numbers At Most N Given Digit Set](https://github.com/grandyang/leetcode/issues/902)|28.80%|Hard| +|901|[Online Stock Span](https://github.com/grandyang/leetcode/issues/901)|49.90%|Medium| +|900|[RLE Iterator](https://github.com/grandyang/leetcode/issues/900)|50.50%|Medium| +|899|[Orderly Queue](https://github.com/grandyang/leetcode/issues/899)|47.70%|Hard| +|898|[Bitwise ORs of Subarrays](https://github.com/grandyang/leetcode/issues/898)|34.70%|Medium| +|897|[Increasing Order Search Tree](https://github.com/grandyang/leetcode/issues/897)|65.20%|Easy| +|896|[Monotonic Array](https://github.com/grandyang/leetcode/issues/896)|55.40%|Easy| +|895|[Maximum Frequency Stack](https://github.com/grandyang/leetcode/issues/895)|56.70%|Hard| +|894|[All Possible Full Binary Trees](https://github.com/grandyang/leetcode/issues/894)|71.30%|Medium| +|893|[Groups of Special-Equivalent Strings](https://github.com/grandyang/leetcode/issues/893)|63.00%|Easy| +|892|[Surface Area of 3D Shapes](https://github.com/grandyang/leetcode/issues/892)|56.10%|Easy| +|891|[Sum of Subsequence Widths](https://github.com/grandyang/leetcode/issues/891)|29.20%|Hard| +|890|[Find and Replace Pattern](https://github.com/grandyang/leetcode/issues/890)|71.30%|Medium| +|889|[Construct Binary Tree from Preorder and Postorder Traversal](https://github.com/grandyang/leetcode/issues/889)|60.70%|Medium| +|888|[Fair Candy Swap](https://github.com/grandyang/leetcode/issues/888)|56.90%|Easy| +|887|[Super Egg Drop](https://github.com/grandyang/leetcode/issues/887)|24.90%|Hard| +|886|[Possible Bipartition](https://github.com/grandyang/leetcode/issues/886)|40.90%|Medium| +|885|[Spiral Matrix III](https://github.com/grandyang/leetcode/issues/885)|64.80%|Medium| +|884|[Uncommon Words from Two Sentences](https://github.com/grandyang/leetcode/issues/884)|60.90%|Easy| +|883|[Projection Area of 3D Shapes](https://github.com/grandyang/leetcode/issues/883)|65.90%|Easy| +|882|[Reachable Nodes In Subdivided Graph](https://github.com/grandyang/leetcode/issues/882)|38.20%|Hard| +|881|[Boats to Save People](https://github.com/grandyang/leetcode/issues/881)|44.10%|Medium| +|880|[Decoded String at Index](https://github.com/grandyang/leetcode/issues/880)|23.00%|Medium| +|879|[Profitable Schemes](https://github.com/grandyang/leetcode/issues/879)|36.20%|Hard| +|878|[Nth Magical Number](https://github.com/grandyang/leetcode/issues/878)|25.40%|Hard| +|877|[Stone Game](https://github.com/grandyang/leetcode/issues/877)|61.10%|Medium| +|876|[Middle of the Linked List](https://github.com/grandyang/leetcode/issues/876)|63.80%|Easy| +|875|[Koko Eating Bananas](https://github.com/grandyang/leetcode/issues/875)|45.90%|Medium| +|874|[Walking Robot Simulation](https://github.com/grandyang/leetcode/issues/874)|31.70%|Easy| +|873|[Length of Longest Fibonacci Subsequence](https://github.com/grandyang/leetcode/issues/873)|46.00%|Medium| +|872|[Leaf-Similar Trees](https://github.com/grandyang/leetcode/issues/872)|63.10%|Easy| +|871|[Minimum Number of Refueling Stops](https://github.com/grandyang/leetcode/issues/871)|28.70%|Hard| +|870|[Advantage Shuffle](https://github.com/grandyang/leetcode/issues/870)|42.20%|Medium| +|869|[Reordered Power of 2](https://github.com/grandyang/leetcode/issues/869)|50.60%|Medium| +|868|[Binary Gap](https://github.com/grandyang/leetcode/issues/868)|59.30%|Easy| +|867|[Transpose Matrix](https://github.com/grandyang/leetcode/issues/867)|63.90%|Easy| +|866|[Prime Palindrome](https://github.com/grandyang/leetcode/issues/866)|20.00%|Medium| +|865|[Smallest Subtree with all the Deepest Nodes](https://github.com/grandyang/leetcode/issues/865)|55.40%|Medium| +|864|[Shortest Path to Get All Keys](https://github.com/grandyang/leetcode/issues/864)|35.70%|Hard| +|863|[All Nodes Distance K in Binary Tree](https://github.com/grandyang/leetcode/issues/863)|46.80%|Medium| +|862|[Shortest Subarray with Sum at Least K](https://github.com/grandyang/leetcode/issues/862)|22.00%|Hard| +|861|[Score After Flipping Matrix](https://github.com/grandyang/leetcode/issues/861)|69.30%|Medium| +|860|[Lemonade Change](https://github.com/grandyang/leetcode/issues/860)|50.20%|Easy| +|859|[Buddy Strings](https://github.com/grandyang/leetcode/issues/859)|27.60%|Easy| +|858|[Mirror Reflection](https://github.com/grandyang/leetcode/issues/858)|52.00%|Medium| +|857|[Minimum Cost to Hire K Workers](https://github.com/grandyang/leetcode/issues/857)|47.30%|Hard| +|856|[Score of Parentheses](https://github.com/grandyang/leetcode/issues/856)|55.90%|Medium| +|855|[Exam Room](https://github.com/grandyang/leetcode/issues/855)|38.10%|Medium| +|854|[K-Similar Strings](https://github.com/grandyang/leetcode/issues/854)|33.20%|Hard| +|853|[Car Fleet](https://github.com/grandyang/leetcode/issues/853)|39.30%|Medium| +|852|[Peak Index in a Mountain Array](https://github.com/grandyang/leetcode/issues/852)|68.50%|Easy| +|851|[Loud and Rich](https://github.com/grandyang/leetcode/issues/851)|47.40%|Medium| +|850|[Rectangle Area II](https://github.com/grandyang/leetcode/issues/850)|44.00%|Hard| +|849|[Maximize Distance to Closest Person](https://github.com/grandyang/leetcode/issues/849)|40.40%|Easy| +|848|[Shifting Letters](https://github.com/grandyang/leetcode/issues/848)|39.90%|Medium| +|847|[Shortest Path Visiting All Nodes](https://github.com/grandyang/leetcode/issues/847)|45.90%|Hard| +|846|[Hand of Straights](https://github.com/grandyang/leetcode/issues/846)|48.60%|Medium| +|845|[Longest Mountain in Array](https://github.com/grandyang/leetcode/issues/845)|34.00%|Medium| +|844|[Backspace String Compare](https://github.com/grandyang/leetcode/issues/844)|45.50%|Easy| +|843|[Guess the Word](https://github.com/grandyang/leetcode/issues/843)|42.60%|Hard| +|842|[Split Array into Fibonacci Sequence](https://github.com/grandyang/leetcode/issues/842)|34.60%|Medium| +|841|[Keys and Rooms](https://github.com/grandyang/leetcode/issues/841)|59.70%|Medium| +|840|[Magic Squares In Grid](https://github.com/grandyang/leetcode/issues/840)|35.10%|Easy| +|839|[Similar String Groups](https://github.com/grandyang/leetcode/issues/839)|33.50%|Hard| +|838|[Push Dominoes](https://github.com/grandyang/leetcode/issues/838)|42.80%|Medium| +|837|[New 21 Game](https://github.com/grandyang/leetcode/issues/837)|29.50%|Medium| +|836|[Rectangle Overlap](https://github.com/grandyang/leetcode/issues/836)|45.50%|Easy| +|835|[Image Overlap](https://github.com/grandyang/leetcode/issues/835)|50.30%|Medium| +|834|[Sum of Distances in Tree](https://github.com/grandyang/leetcode/issues/834)|38.10%|Hard| +|833|[Find And Replace in String](https://github.com/grandyang/leetcode/issues/833)|44.50%|Medium| +|832|[Flipping an Image](https://github.com/grandyang/leetcode/issues/832)|71.30%|Easy| +|831|[Masking Personal Information](https://github.com/grandyang/leetcode/issues/831)|41.50%|Medium| +|830|[Positions of Large Groups](https://github.com/grandyang/leetcode/issues/830)|47.40%|Easy| +|829|[Consecutive Numbers Sum](https://github.com/grandyang/leetcode/issues/829)|32.10%|Hard| +|828|[Unique Letter String](https://github.com/grandyang/leetcode/issues/828)|38.10%|Hard| +|827|[Making A Large Island](https://github.com/grandyang/leetcode/issues/827)|42.10%|Hard| +|826|[Most Profit Assigning Work](https://github.com/grandyang/leetcode/issues/826)|34.70%|Medium| +|825|[Friends Of Appropriate Ages](https://github.com/grandyang/leetcode/issues/825)|35.00%|Medium| +|824|[Goat Latin](https://github.com/grandyang/leetcode/issues/824)|56.70%|Easy| +|823|[Binary Trees With Factors](https://github.com/grandyang/leetcode/issues/823)|31.50%|Medium| +|822|[Card Flipping Game](https://github.com/grandyang/leetcode/issues/822)|39.70%|Medium| +|821|[Shortest Distance to a Character](https://github.com/grandyang/leetcode/issues/821)|62.60%|Easy| +|820|[Short Encoding of Words](https://github.com/grandyang/leetcode/issues/820)|46.00%|Medium| +|819|[Most Common Word](https://github.com/grandyang/leetcode/issues/819)|41.50%|Easy| +|818|[Race Car](https://github.com/grandyang/leetcode/issues/818)|34.00%|Hard| +|817|[Linked List Components](https://github.com/grandyang/leetcode/issues/817)|51.90%|Medium| +|816|[Ambiguous Coordinates](https://github.com/grandyang/leetcode/issues/816)|42.40%|Medium| +|815|[Bus Routes](https://github.com/grandyang/leetcode/issues/815)|36.10%|Hard| +|814|[Binary Tree Pruning](https://github.com/grandyang/leetcode/issues/814)|68.30%|Medium| +|813|[Largest Sum of Averages](https://github.com/grandyang/leetcode/issues/813)|42.40%|Medium| +|812|[Largest Triangle Area](https://github.com/grandyang/leetcode/issues/812)|53.80%|Easy| +|811|[Subdomain Visit Count](https://github.com/grandyang/leetcode/issues/811)|61.50%|Easy| +|810|[Chalkboard XOR Game](https://github.com/grandyang/leetcode/issues/810)|41.90%|Hard| +|809|[Expressive Words](https://github.com/grandyang/leetcode/issues/809)|39.50%|Medium| +|808|[Soup Servings](https://github.com/grandyang/leetcode/issues/808)|33.60%|Medium| +|807|[Max Increase to Keep City Skyline](https://github.com/grandyang/leetcode/issues/807)|79.60%|Medium| +|806|[Number of Lines To Write String](https://github.com/grandyang/leetcode/issues/806)|62.10%|Easy| +|805|[Split Array With Same Average](https://github.com/grandyang/leetcode/issues/805)|21.00%|Hard| +|804|[Unique Morse Code Words](https://github.com/grandyang/leetcode/issues/804)|71.30%|Easy| +|803|[Bricks Falling When Hit](https://github.com/grandyang/leetcode/issues/803)|22.90%|Hard| +|802|[Find Eventual Safe States](https://github.com/grandyang/leetcode/issues/802)|39.20%|Medium| +|801|[Minimum Swaps To Make Sequences Increasing](https://github.com/grandyang/leetcode/issues/801)|31.00%|Medium| +|800|[Similar RGB Color](https://github.com/grandyang/leetcode/issues/800) $|54.50%|Easy| +|799|[Champagne Tower](https://github.com/grandyang/leetcode/issues/799)|29.90%|Medium| +|798|[Smallest Rotation with Highest Score](https://github.com/grandyang/leetcode/issues/798)|34.30%|Hard| +|797|[All Paths From Source to Target](https://github.com/grandyang/leetcode/issues/797)|67.40%|Medium| +|796|[Rotate String](https://github.com/grandyang/leetcode/issues/796)|49.60%|Easy| +|795|[Number of Subarrays with Bounded Maximum](https://github.com/grandyang/leetcode/issues/795)|41.60%|Medium| +|794|[Valid Tic-Tac-Toe State](https://github.com/grandyang/leetcode/issues/794)|27.80%|Medium| +|793|[Preimage Size of Factorial Zeroes Function](https://github.com/grandyang/leetcode/issues/793)|40.80%|Hard| +|792|[Number of Matching Subsequences](https://github.com/grandyang/leetcode/issues/792)|37.30%|Medium| +|791|[Custom Sort String](https://github.com/grandyang/leetcode/issues/791)|59.40%|Medium| +|790|[Domino and Tromino Tiling](https://github.com/grandyang/leetcode/issues/790)|32.80%|Medium| +|789|[Escape The Ghosts](https://github.com/grandyang/leetcode/issues/789)|51.00%|Medium| +|788|[Rotated Digits](https://github.com/grandyang/leetcode/issues/788)|51.00%|Easy| +|787|[Cheapest Flights Within K Stops](https://github.com/grandyang/leetcode/issues/787)|29.90%|Medium| +|786|[K-th Smallest Prime Fraction](https://github.com/grandyang/leetcode/issues/786)|32.50%|Hard| +|785|[Is Graph Bipartite](https://github.com/grandyang/leetcode/issues/785)|38.50%|Medium| +|784|[Letter Case Permutation](https://github.com/grandyang/leetcode/issues/784)|53.00%|Easy| +|783|[Minimum Distance Between BST Nodes](https://github.com/grandyang/leetcode/issues/783)|47.80%|Easy| +|782|[Transform to Chessboard](https://github.com/grandyang/leetcode/issues/782)|37.50%|Hard| +|781|[Rabbits in Forest](https://github.com/grandyang/leetcode/issues/781)|49.80%|Medium| +|780|[Reaching Points](https://github.com/grandyang/leetcode/issues/780)|23.90%|Hard| +|779|[K-th Symbol in Grammar](https://github.com/grandyang/leetcode/issues/779)|37.30%|Medium| +|778|[Swim in Rising Water](https://github.com/grandyang/leetcode/issues/778)|44.60%|Hard| +|777|[Swap Adjacent in LR String](https://github.com/grandyang/leetcode/issues/777)|28.90%|Medium| +|776|[Split BST](https://github.com/grandyang/leetcode/issues/776) $|49.90%|Medium| +|775|[Global and Local Inversions](https://github.com/grandyang/leetcode/issues/775)|33.60%|Medium| +|774|[Minimize Max Distance to Gas Station](https://github.com/grandyang/leetcode/issues/774) $|32.80%|Hard| +|773|[Sliding Puzzle](https://github.com/grandyang/leetcode/issues/773)|46.50%|Hard| +|772|[Basic Calculator III](https://github.com/grandyang/leetcode/issues/772) $|40.10%|Hard| +|771|[Jewels and Stones](https://github.com/grandyang/leetcode/issues/771)|81.90%|Easy| |770|Basic Calculator IV|42.10%|Hard| -|769|[Max Chunks To Make Sorted](https://github.com/grandyang/LeetCode-All-In-One/issues/769)|48.00%|Medium| -|768|[Max Chunks To Make Sorted II](https://github.com/grandyang/LeetCode-All-In-One/issues/768)|43.20%|Hard| -|767|[Reorganize String](https://github.com/grandyang/LeetCode-All-In-One/issues/767)|36.50%|Medium| -|766|[Toeplitz Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/766)|57.90%|Easy| -|765|[Couples Holding Hands](https://github.com/grandyang/LeetCode-All-In-One/issues/765)|48.50%|Hard| -|764|[Largest Plus Sign](https://github.com/grandyang/LeetCode-All-In-One/issues/764)|39.20%|Medium| -|763|[Partition Labels](https://github.com/grandyang/LeetCode-All-In-One/issues/763)|64.10%|Medium| -|762|[Prime Number of Set Bits in Binary Representation](https://github.com/grandyang/LeetCode-All-In-One/issues/762)|55.00%|Easy| -|761|[Special Binary String](https://github.com/grandyang/LeetCode-All-In-One/issues/761)|41.00%|Hard| -|760|[Find Anagram Mappings](https://github.com/grandyang/LeetCode-All-In-One/issues/760) $|75.60%|Easy| -|759|[Employee Free Time](https://github.com/grandyang/LeetCode-All-In-One/issues/759) $|51.90%|Hard| -|758|[Bold Words in String](https://github.com/grandyang/LeetCode-All-In-One/issues/758) $|37.90%|Easy| -|757|[Set Intersection Size At Least Two](https://github.com/grandyang/LeetCode-All-In-One/issues/757)|34.60%|Hard| -|756|[Pyramid Transition Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/756)|45.50%|Medium| -|755|[Pour Water](https://github.com/grandyang/LeetCode-All-In-One/issues/755) $|34.00%|Medium| -|754|[Reach a Number](https://github.com/grandyang/LeetCode-All-In-One/issues/754)|26.10%|Medium| -|753|[Cracking the Safe](https://github.com/grandyang/LeetCode-All-In-One/issues/753)|39.70%|Hard| -|752|[Open the Lock](https://github.com/grandyang/LeetCode-All-In-One/issues/752)|38.20%|Medium| -|751|[IP to CIDR](https://github.com/grandyang/LeetCode-All-In-One/issues/751) $|54.80%|Easy| -|750|[Number Of Corner Rectangles](https://github.com/grandyang/LeetCode-All-In-One/issues/750) $|51.00%|Medium| -|749|[Contain Virus](https://github.com/grandyang/LeetCode-All-In-One/issues/749)|39.60%|Hard| -|748|[Shortest Completing Word](https://github.com/grandyang/LeetCode-All-In-One/issues/748)|53.50%|Medium| -|747|[Largest Number At Least Twice of Others](https://github.com/grandyang/LeetCode-All-In-One/issues/747)|42.60%|Easy| -|746|[Min Cost Climbing Stairs](https://github.com/grandyang/LeetCode-All-In-One/issues/746)|43.60%|Easy| -|745|[Prefix and Suffix Search](https://github.com/grandyang/LeetCode-All-In-One/issues/745)|24.50%|Hard| -|744|[Find Smallest Letter Greater Than Target](https://github.com/grandyang/LeetCode-All-In-One/issues/744)|45.30%|Easy| -|743|[Network Delay Time](https://github.com/grandyang/LeetCode-All-In-One/issues/743)|34.30%|Medium| -|742|[Closest Leaf in a Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/742) $|33.20%|Medium| -|741|[Cherry Pickup](https://github.com/grandyang/LeetCode-All-In-One/issues/741)|22.50%|Hard| -|740|[Delete and Earn](https://github.com/grandyang/LeetCode-All-In-One/issues/740)|42.60%|Medium| -|739|[Daily Temperatures](https://github.com/grandyang/LeetCode-All-In-One/issues/739)|53.50%|Medium| -|738|[Monotone Increasing Digits](https://github.com/grandyang/LeetCode-All-In-One/issues/738)|41.80%|Medium| -|737|[Sentence Similarity II](https://github.com/grandyang/LeetCode-All-In-One/issues/737) $|41.20%|Medium| -|736|[Parse Lisp Expression](https://github.com/grandyang/LeetCode-All-In-One/issues/736)|42.00%|Hard| -|735|[Asteroid Collision](https://github.com/grandyang/LeetCode-All-In-One/issues/735)|37.60%|Medium| -|734|[Sentence Similarity](https://github.com/grandyang/LeetCode-All-In-One/issues/734) $|38.60%|Easy| -|733|[Flood Fill](https://github.com/grandyang/LeetCode-All-In-One/issues/733)|49.30%|Easy| -|732|[My Calendar III](https://github.com/grandyang/LeetCode-All-In-One/issues/732)|51.30%|Hard| -|731|[My Calendar II](https://github.com/grandyang/LeetCode-All-In-One/issues/731)|35.00%|Medium| -|730|[Count Different Palindromic Subsequences](https://github.com/grandyang/LeetCode-All-In-One/issues/730)|32.40%|Hard| -|729|[My Calendar I](https://github.com/grandyang/LeetCode-All-In-One/issues/729)|40.10%|Medium| -|728|[Self Dividing Numbers](https://github.com/grandyang/LeetCode-All-In-One/issues/728)|68.50%|Easy| -|727|[Minimum Window Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/727)|30.10%|Hard| -|726|[Number of Atoms](https://github.com/grandyang/LeetCode-All-In-One/issues/726)|45.00%|Hard| -|725|[Split Linked List in Parts](https://github.com/grandyang/LeetCode-All-In-One/issues/725)|50.00%|Medium| -|724|[Find Pivot Index](https://github.com/grandyang/LeetCode-All-In-One/issues/724)|41.00%|Easy| -|723|[Candy Crush](https://github.com/grandyang/LeetCode-All-In-One/issues/723) $|56.10%|Medium| -|722|[Remove Comments](https://github.com/grandyang/LeetCode-All-In-One/issues/722)|26.30%|Medium| -|721|[Accounts Merge](https://github.com/grandyang/LeetCode-All-In-One/issues/721)|29.60%|Medium| -|720|[Longest Word in Dictionary](https://github.com/grandyang/LeetCode-All-In-One/issues/720)|40.60%|Easy| -|719|[Find K-th Smallest Pair Distance](https://github.com/grandyang/LeetCode-All-In-One/issues/719)|26.10%|Hard| -|718|[Maximum Length of Repeated Subarray](https://github.com/grandyang/LeetCode-All-In-One/issues/718)|39.90%|Medium| -|717|[1-bit and 2-bit Characters](https://github.com/grandyang/LeetCode-All-In-One/issues/717)|50.90%|Easy| -|716|[Max Stack](https://github.com/grandyang/LeetCode-All-In-One/issues/716) $|35.50%|Hard| -|715|[Range Module](https://github.com/grandyang/LeetCode-All-In-One/issues/715)|31.00%|Hard| -|714|[Best Time to Buy and Sell Stock with Transaction Fee](https://github.com/grandyang/LeetCode-All-In-One/issues/714)|41.60%|Medium| -|713|[Subarray Product Less Than K](https://github.com/grandyang/LeetCode-All-In-One/issues/713)|32.90%|Medium| -|712|[Minimum ASCII Delete Sum for Two Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/712)|50.90%|Medium| -|711|[Number of Distinct Islands II](https://github.com/grandyang/LeetCode-All-In-One/issues/711) $|39.40%|Hard| -|710|[Random Pick with Blacklist](https://github.com/grandyang/LeetCode-All-In-One/issues/710)|29.80%|Hard| -|709|[To Lower Case](https://github.com/grandyang/LeetCode-All-In-One/issues/709)|74.50%|Easy| -|708|[Insert into a Cyclic Sorted List](https://github.com/grandyang/LeetCode-All-In-One/issues/708) $|25.50%|Medium| -|707|[Design Linked List](https://github.com/grandyang/LeetCode-All-In-One/issues/707)|19.10%|Easy| -|706|[Design HashMap](https://github.com/grandyang/LeetCode-All-In-One/issues/706)|49.10%|Easy| -|705|[Design HashSet](https://github.com/grandyang/LeetCode-All-In-One/issues/705)|43.60%|Easy| -|704|[Binary Search](https://github.com/grandyang/LeetCode-All-In-One/issues/704)|40.10%|Easy| -|703|[Kth Largest Element in a Stream](https://github.com/grandyang/LeetCode-All-In-One/issues/703)|39.60%|Easy| -|702|[Search in a Sorted Array of Unknown Size](https://github.com/grandyang/LeetCode-All-In-One/issues/702)|43.00%|Medium| -|701|[Insert into a Binary Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/701)|67.90%|Medium| -|700|[Search in a Binary Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/700)|62.70%|Easy| -|699|[Falling Squares](https://github.com/grandyang/LeetCode-All-In-One/issues/699)|36.80%|Hard| -|698|[Partition to K Equal Sum Subsets](https://github.com/grandyang/LeetCode-All-In-One/issues/698)|35.60%|Medium| -|697|[Degree of an Array](https://github.com/grandyang/LeetCode-All-In-One/issues/697)|47.90%|Easy| -|696|[Count Binary Substrings](https://github.com/grandyang/LeetCode-All-In-One/issues/696)|51.90%|Easy| -|695|[Max Area of Island](https://github.com/grandyang/LeetCode-All-In-One/issues/695)|53.30%|Easy| -|694|[Number of Distinct Islands](https://github.com/grandyang/LeetCode-All-In-One/issues/694) $|43.90%|Medium| -|693|[Binary Number with Alternating Bits](https://github.com/grandyang/LeetCode-All-In-One/issues/693)|54.20%|Easy| -|692|[Top K Frequent Words](https://github.com/grandyang/LeetCode-All-In-One/issues/692)|41.70%|Medium| -|691|[Stickers to Spell Word](https://github.com/grandyang/LeetCode-All-In-One/issues/691)|32.30%|Hard| -|690|[Employee Importance](https://github.com/grandyang/LeetCode-All-In-One/issues/690)|53.60%|Easy| -|689|[Maximum Sum of 3 Non-Overlapping Subarrays](https://github.com/grandyang/LeetCode-All-In-One/issues/689)|41.70%|Hard| -|688|[Knight Probability in Chessboard](https://github.com/grandyang/LeetCode-All-In-One/issues/688)|38.90%|Medium| -|687|[Longest Univalue Path](https://github.com/grandyang/LeetCode-All-In-One/issues/687)|32.90%|Easy| -|686|[Repeated String Match](https://github.com/grandyang/LeetCode-All-In-One/issues/686)|31.70%|Easy| -|685|[Redundant Connection II](https://github.com/grandyang/LeetCode-All-In-One/issues/685)|28.40%|Hard| -|684|[Redundant Connection](https://github.com/grandyang/LeetCode-All-In-One/issues/684)|37.40%|Medium| -|683|[K Empty Slots](https://github.com/grandyang/LeetCode-All-In-One/issues/683)|37.00%|Hard| -|682|[Baseball Game](https://github.com/grandyang/LeetCode-All-In-One/issues/682)|58.60%|Easy| -|681|[Next Closest Time](https://github.com/grandyang/LeetCode-All-In-One/issues/681) $|43.00%|Medium| -|680|[Valid Palindrome II](https://github.com/grandyang/LeetCode-All-In-One/issues/680)|31.10%|Easy| -|679|[24 Game](https://github.com/grandyang/LeetCode-All-In-One/issues/679)|38.30%|Hard| -|678|[Valid Parenthesis String](https://github.com/grandyang/LeetCode-All-In-One/issues/678)|28.30%|Medium| -|677|[Map Sum Pairs](https://github.com/grandyang/LeetCode-All-In-One/issues/677)|53.80%|Medium| -|676|[Implement Magic Dictionary](https://github.com/grandyang/LeetCode-All-In-One/issues/676)|50.70%|Medium| -|675|[Cut Off Trees for Golf Event](https://github.com/grandyang/LeetCode-All-In-One/issues/675)|27.20%|Hard| -|674|[Longest Continuous Increasing Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/674)|43.20%|Easy| -|673|[Number of Longest Increasing Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/673)|30.80%|Medium| -|672|[Bulb Switcher II](https://github.com/grandyang/LeetCode-All-In-One/issues/672)|47.60%|Medium| -|671|[Second Minimum Node In a Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/671)|42.30%|Easy| -|670|[Maximum Swap](https://github.com/grandyang/LeetCode-All-In-One/issues/670)|38.40%|Medium| -|669|[Trim a Binary Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/669)|58.70%|Easy| -|668|[Kth Smallest Number in Multiplication Table](https://github.com/grandyang/LeetCode-All-In-One/issues/668)|36.30%|Hard| -|667|[Beautiful Arrangement II](https://github.com/grandyang/LeetCode-All-In-One/issues/667)|51.50%|Medium| -|666|[Path Sum IV](https://github.com/grandyang/LeetCode-All-In-One/issues/666) $|48.90%|Medium| -|665|[Non-decreasing Array](https://github.com/grandyang/LeetCode-All-In-One/issues/665)|21.20%|Easy| -|664|[Strange Printer](https://github.com/grandyang/LeetCode-All-In-One/issues/664)|31.10%|Hard| -|663|[Equal Tree Partition](https://github.com/grandyang/LeetCode-All-In-One/issues/663) $|36.70%|Medium| -|662|[Maximum Width of Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/662)|37.00%|Medium| -|661|[Image Smoother](https://github.com/grandyang/LeetCode-All-In-One/issues/661)|46.60%|Easy| -|660|[Remove 9](https://github.com/grandyang/LeetCode-All-In-One/issues/660) $|46.10%|Hard| -|659|[Split Array into Consecutive Subsequences](https://github.com/grandyang/LeetCode-All-In-One/issues/659)|39.40%|Medium| -|658|[Find K Closest Elements](https://github.com/grandyang/LeetCode-All-In-One/issues/658)|36.30%|Medium| -|657|[Judge Route Circle](https://github.com/grandyang/LeetCode-All-In-One/issues/657)|69.30%|Easy| -|656|[Coin Path](https://github.com/grandyang/LeetCode-All-In-One/issues/656) $|24.60%|Hard| -|655|[Print Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/655)|50.80%|Medium| -|654|[Maximum Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/654)|70.80%|Medium| -|653|[Two Sum IV - Input is a BST](https://github.com/grandyang/LeetCode-All-In-One/issues/653)|50.60%|Easy| -|652|[Find Duplicate Subtrees](https://github.com/grandyang/LeetCode-All-In-One/issues/652)|33.20%|Medium| -|651|[4 Keys Keyboard](https://github.com/grandyang/LeetCode-All-In-One/issues/651) $|46.70%|Medium| -|650|[2 Keys Keyboard](https://github.com/grandyang/LeetCode-All-In-One/issues/650)|42.70%|Medium| -|649|[Dota2 Senate](https://github.com/grandyang/LeetCode-All-In-One/issues/649)|35.60%|Medium| -|648|[Replace Words](https://github.com/grandyang/LeetCode-All-In-One/issues/648)|48.40%|Medium| -|647|[Palindromic Substrings](https://github.com/grandyang/LeetCode-All-In-One/issues/647)|55.70%|Medium| -|646|[Maximum Length of Pair Chain](https://github.com/grandyang/LeetCode-All-In-One/issues/646)|47.40%|Medium| -|645|[Set Mismatch](https://github.com/grandyang/LeetCode-All-In-One/issues/645)|40.40%|Easy| -|644|[Maximum Average Subarray II](https://github.com/grandyang/LeetCode-All-In-One/issues/644) $|20.30%|Hard| -|643|[Maximum Average Subarray I](https://github.com/grandyang/LeetCode-All-In-One/issues/643)|38.40%|Easy| -|642|[Design Search Autocomplete System](https://github.com/grandyang/LeetCode-All-In-One/issues/642) $|29.40%|Hard| -|641|[Design Circular Deque](https://github.com/grandyang/LeetCode-All-In-One/issues/641)|48.00%|Medium| -|640|[Solve the Equation](https://github.com/grandyang/LeetCode-All-In-One/issues/640)|39.00%|Medium| -|639|[Decode Ways II](https://github.com/grandyang/LeetCode-All-In-One/issues/639)|22.80%|Hard| -|638|[Shopping Offers](https://github.com/grandyang/LeetCode-All-In-One/issues/638)|41.50%|Medium| -|637|[Average of Levels in Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/637)|55.60%|Easy| -|636|[Exclusive Time of Functions](https://github.com/grandyang/LeetCode-All-In-One/issues/636)|40.30%|Medium| -|635|[Design Log Storage System](https://github.com/grandyang/LeetCode-All-In-One/issues/635) $|47.70%|Medium| -|634|[Find the Derangement of An Array](https://github.com/grandyang/LeetCode-All-In-One/issues/634) $|32.70%|Medium| -|633|[Sum of Square Numbers](https://github.com/grandyang/LeetCode-All-In-One/issues/633)|31.60%|Easy| -|632|[Smallest Range](https://github.com/grandyang/LeetCode-All-In-One/issues/632)|42.80%|Hard| -|631|[Design Excel Sum Formula](https://github.com/grandyang/LeetCode-All-In-One/issues/631) $|25.60%|Hard| -|630|[Course Schedule III](https://github.com/grandyang/LeetCode-All-In-One/issues/630)|20.50%|Medium| -|629|[K Inverse Pairs Array](https://github.com/grandyang/LeetCode-All-In-One/issues/629)|23.90%|Hard| -|628|[Maximum Product of Three Numbers](https://github.com/grandyang/LeetCode-All-In-One/issues/628)|45.40%|Easy| +|769|[Max Chunks To Make Sorted](https://github.com/grandyang/leetcode/issues/769)|48.00%|Medium| +|768|[Max Chunks To Make Sorted II](https://github.com/grandyang/leetcode/issues/768)|43.20%|Hard| +|767|[Reorganize String](https://github.com/grandyang/leetcode/issues/767)|36.50%|Medium| +|766|[Toeplitz Matrix](https://github.com/grandyang/leetcode/issues/766)|57.90%|Easy| +|765|[Couples Holding Hands](https://github.com/grandyang/leetcode/issues/765)|48.50%|Hard| +|764|[Largest Plus Sign](https://github.com/grandyang/leetcode/issues/764)|39.20%|Medium| +|763|[Partition Labels](https://github.com/grandyang/leetcode/issues/763)|64.10%|Medium| +|762|[Prime Number of Set Bits in Binary Representation](https://github.com/grandyang/leetcode/issues/762)|55.00%|Easy| +|761|[Special Binary String](https://github.com/grandyang/leetcode/issues/761)|41.00%|Hard| +|760|[Find Anagram Mappings](https://github.com/grandyang/leetcode/issues/760) $|75.60%|Easy| +|759|[Employee Free Time](https://github.com/grandyang/leetcode/issues/759) $|51.90%|Hard| +|758|[Bold Words in String](https://github.com/grandyang/leetcode/issues/758) $|37.90%|Easy| +|757|[Set Intersection Size At Least Two](https://github.com/grandyang/leetcode/issues/757)|34.60%|Hard| +|756|[Pyramid Transition Matrix](https://github.com/grandyang/leetcode/issues/756)|45.50%|Medium| +|755|[Pour Water](https://github.com/grandyang/leetcode/issues/755) $|34.00%|Medium| +|754|[Reach a Number](https://github.com/grandyang/leetcode/issues/754)|26.10%|Medium| +|753|[Cracking the Safe](https://github.com/grandyang/leetcode/issues/753)|39.70%|Hard| +|752|[Open the Lock](https://github.com/grandyang/leetcode/issues/752)|38.20%|Medium| +|751|[IP to CIDR](https://github.com/grandyang/leetcode/issues/751) $|54.80%|Easy| +|750|[Number Of Corner Rectangles](https://github.com/grandyang/leetcode/issues/750) $|51.00%|Medium| +|749|[Contain Virus](https://github.com/grandyang/leetcode/issues/749)|39.60%|Hard| +|748|[Shortest Completing Word](https://github.com/grandyang/leetcode/issues/748)|53.50%|Medium| +|747|[Largest Number At Least Twice of Others](https://github.com/grandyang/leetcode/issues/747)|42.60%|Easy| +|746|[Min Cost Climbing Stairs](https://github.com/grandyang/leetcode/issues/746)|43.60%|Easy| +|745|[Prefix and Suffix Search](https://github.com/grandyang/leetcode/issues/745)|24.50%|Hard| +|744|[Find Smallest Letter Greater Than Target](https://github.com/grandyang/leetcode/issues/744)|45.30%|Easy| +|743|[Network Delay Time](https://github.com/grandyang/leetcode/issues/743)|34.30%|Medium| +|742|[Closest Leaf in a Binary Tree](https://github.com/grandyang/leetcode/issues/742) $|33.20%|Medium| +|741|[Cherry Pickup](https://github.com/grandyang/leetcode/issues/741)|22.50%|Hard| +|740|[Delete and Earn](https://github.com/grandyang/leetcode/issues/740)|42.60%|Medium| +|739|[Daily Temperatures](https://github.com/grandyang/leetcode/issues/739)|53.50%|Medium| +|738|[Monotone Increasing Digits](https://github.com/grandyang/leetcode/issues/738)|41.80%|Medium| +|737|[Sentence Similarity II](https://github.com/grandyang/leetcode/issues/737) $|41.20%|Medium| +|736|[Parse Lisp Expression](https://github.com/grandyang/leetcode/issues/736)|42.00%|Hard| +|735|[Asteroid Collision](https://github.com/grandyang/leetcode/issues/735)|37.60%|Medium| +|734|[Sentence Similarity](https://github.com/grandyang/leetcode/issues/734) $|38.60%|Easy| +|733|[Flood Fill](https://github.com/grandyang/leetcode/issues/733)|49.30%|Easy| +|732|[My Calendar III](https://github.com/grandyang/leetcode/issues/732)|51.30%|Hard| +|731|[My Calendar II](https://github.com/grandyang/leetcode/issues/731)|35.00%|Medium| +|730|[Count Different Palindromic Subsequences](https://github.com/grandyang/leetcode/issues/730)|32.40%|Hard| +|729|[My Calendar I](https://github.com/grandyang/leetcode/issues/729)|40.10%|Medium| +|728|[Self Dividing Numbers](https://github.com/grandyang/leetcode/issues/728)|68.50%|Easy| +|727|[Minimum Window Subsequence](https://github.com/grandyang/leetcode/issues/727)|30.10%|Hard| +|726|[Number of Atoms](https://github.com/grandyang/leetcode/issues/726)|45.00%|Hard| +|725|[Split Linked List in Parts](https://github.com/grandyang/leetcode/issues/725)|50.00%|Medium| +|724|[Find Pivot Index](https://github.com/grandyang/leetcode/issues/724)|41.00%|Easy| +|723|[Candy Crush](https://github.com/grandyang/leetcode/issues/723) $|56.10%|Medium| +|722|[Remove Comments](https://github.com/grandyang/leetcode/issues/722)|26.30%|Medium| +|721|[Accounts Merge](https://github.com/grandyang/leetcode/issues/721)|29.60%|Medium| +|720|[Longest Word in Dictionary](https://github.com/grandyang/leetcode/issues/720)|40.60%|Easy| +|719|[Find K-th Smallest Pair Distance](https://github.com/grandyang/leetcode/issues/719)|26.10%|Hard| +|718|[Maximum Length of Repeated Subarray](https://github.com/grandyang/leetcode/issues/718)|39.90%|Medium| +|717|[1-bit and 2-bit Characters](https://github.com/grandyang/leetcode/issues/717)|50.90%|Easy| +|716|[Max Stack](https://github.com/grandyang/leetcode/issues/716) $|35.50%|Hard| +|715|[Range Module](https://github.com/grandyang/leetcode/issues/715)|31.00%|Hard| +|714|[Best Time to Buy and Sell Stock with Transaction Fee](https://github.com/grandyang/leetcode/issues/714)|41.60%|Medium| +|713|[Subarray Product Less Than K](https://github.com/grandyang/leetcode/issues/713)|32.90%|Medium| +|712|[Minimum ASCII Delete Sum for Two Strings](https://github.com/grandyang/leetcode/issues/712)|50.90%|Medium| +|711|[Number of Distinct Islands II](https://github.com/grandyang/leetcode/issues/711) $|39.40%|Hard| +|710|[Random Pick with Blacklist](https://github.com/grandyang/leetcode/issues/710)|29.80%|Hard| +|709|[To Lower Case](https://github.com/grandyang/leetcode/issues/709)|74.50%|Easy| +|708|[Insert into a Cyclic Sorted List](https://github.com/grandyang/leetcode/issues/708) $|25.50%|Medium| +|707|[Design Linked List](https://github.com/grandyang/leetcode/issues/707)|19.10%|Easy| +|706|[Design HashMap](https://github.com/grandyang/leetcode/issues/706)|49.10%|Easy| +|705|[Design HashSet](https://github.com/grandyang/leetcode/issues/705)|43.60%|Easy| +|704|[Binary Search](https://github.com/grandyang/leetcode/issues/704)|40.10%|Easy| +|703|[Kth Largest Element in a Stream](https://github.com/grandyang/leetcode/issues/703)|39.60%|Easy| +|702|[Search in a Sorted Array of Unknown Size](https://github.com/grandyang/leetcode/issues/702)|43.00%|Medium| +|701|[Insert into a Binary Search Tree](https://github.com/grandyang/leetcode/issues/701)|67.90%|Medium| +|700|[Search in a Binary Search Tree](https://github.com/grandyang/leetcode/issues/700)|62.70%|Easy| +|699|[Falling Squares](https://github.com/grandyang/leetcode/issues/699)|36.80%|Hard| +|698|[Partition to K Equal Sum Subsets](https://github.com/grandyang/leetcode/issues/698)|35.60%|Medium| +|697|[Degree of an Array](https://github.com/grandyang/leetcode/issues/697)|47.90%|Easy| +|696|[Count Binary Substrings](https://github.com/grandyang/leetcode/issues/696)|51.90%|Easy| +|695|[Max Area of Island](https://github.com/grandyang/leetcode/issues/695)|53.30%|Easy| +|694|[Number of Distinct Islands](https://github.com/grandyang/leetcode/issues/694) $|43.90%|Medium| +|693|[Binary Number with Alternating Bits](https://github.com/grandyang/leetcode/issues/693)|54.20%|Easy| +|692|[Top K Frequent Words](https://github.com/grandyang/leetcode/issues/692)|41.70%|Medium| +|691|[Stickers to Spell Word](https://github.com/grandyang/leetcode/issues/691)|32.30%|Hard| +|690|[Employee Importance](https://github.com/grandyang/leetcode/issues/690)|53.60%|Easy| +|689|[Maximum Sum of 3 Non-Overlapping Subarrays](https://github.com/grandyang/leetcode/issues/689)|41.70%|Hard| +|688|[Knight Probability in Chessboard](https://github.com/grandyang/leetcode/issues/688)|38.90%|Medium| +|687|[Longest Univalue Path](https://github.com/grandyang/leetcode/issues/687)|32.90%|Easy| +|686|[Repeated String Match](https://github.com/grandyang/leetcode/issues/686)|31.70%|Easy| +|685|[Redundant Connection II](https://github.com/grandyang/leetcode/issues/685)|28.40%|Hard| +|684|[Redundant Connection](https://github.com/grandyang/leetcode/issues/684)|37.40%|Medium| +|683|[K Empty Slots](https://github.com/grandyang/leetcode/issues/683)|37.00%|Hard| +|682|[Baseball Game](https://github.com/grandyang/leetcode/issues/682)|58.60%|Easy| +|681|[Next Closest Time](https://github.com/grandyang/leetcode/issues/681) $|43.00%|Medium| +|680|[Valid Palindrome II](https://github.com/grandyang/leetcode/issues/680)|31.10%|Easy| +|679|[24 Game](https://github.com/grandyang/leetcode/issues/679)|38.30%|Hard| +|678|[Valid Parenthesis String](https://github.com/grandyang/leetcode/issues/678)|28.30%|Medium| +|677|[Map Sum Pairs](https://github.com/grandyang/leetcode/issues/677)|53.80%|Medium| +|676|[Implement Magic Dictionary](https://github.com/grandyang/leetcode/issues/676)|50.70%|Medium| +|675|[Cut Off Trees for Golf Event](https://github.com/grandyang/leetcode/issues/675)|27.20%|Hard| +|674|[Longest Continuous Increasing Subsequence](https://github.com/grandyang/leetcode/issues/674)|43.20%|Easy| +|673|[Number of Longest Increasing Subsequence](https://github.com/grandyang/leetcode/issues/673)|30.80%|Medium| +|672|[Bulb Switcher II](https://github.com/grandyang/leetcode/issues/672)|47.60%|Medium| +|671|[Second Minimum Node In a Binary Tree](https://github.com/grandyang/leetcode/issues/671)|42.30%|Easy| +|670|[Maximum Swap](https://github.com/grandyang/leetcode/issues/670)|38.40%|Medium| +|669|[Trim a Binary Search Tree](https://github.com/grandyang/leetcode/issues/669)|58.70%|Easy| +|668|[Kth Smallest Number in Multiplication Table](https://github.com/grandyang/leetcode/issues/668)|36.30%|Hard| +|667|[Beautiful Arrangement II](https://github.com/grandyang/leetcode/issues/667)|51.50%|Medium| +|666|[Path Sum IV](https://github.com/grandyang/leetcode/issues/666) $|48.90%|Medium| +|665|[Non-decreasing Array](https://github.com/grandyang/leetcode/issues/665)|21.20%|Easy| +|664|[Strange Printer](https://github.com/grandyang/leetcode/issues/664)|31.10%|Hard| +|663|[Equal Tree Partition](https://github.com/grandyang/leetcode/issues/663) $|36.70%|Medium| +|662|[Maximum Width of Binary Tree](https://github.com/grandyang/leetcode/issues/662)|37.00%|Medium| +|661|[Image Smoother](https://github.com/grandyang/leetcode/issues/661)|46.60%|Easy| +|660|[Remove 9](https://github.com/grandyang/leetcode/issues/660) $|46.10%|Hard| +|659|[Split Array into Consecutive Subsequences](https://github.com/grandyang/leetcode/issues/659)|39.40%|Medium| +|658|[Find K Closest Elements](https://github.com/grandyang/leetcode/issues/658)|36.30%|Medium| +|657|[Judge Route Circle](https://github.com/grandyang/leetcode/issues/657)|69.30%|Easy| +|656|[Coin Path](https://github.com/grandyang/leetcode/issues/656) $|24.60%|Hard| +|655|[Print Binary Tree](https://github.com/grandyang/leetcode/issues/655)|50.80%|Medium| +|654|[Maximum Binary Tree](https://github.com/grandyang/leetcode/issues/654)|70.80%|Medium| +|653|[Two Sum IV - Input is a BST](https://github.com/grandyang/leetcode/issues/653)|50.60%|Easy| +|652|[Find Duplicate Subtrees](https://github.com/grandyang/leetcode/issues/652)|33.20%|Medium| +|651|[4 Keys Keyboard](https://github.com/grandyang/leetcode/issues/651) $|46.70%|Medium| +|650|[2 Keys Keyboard](https://github.com/grandyang/leetcode/issues/650)|42.70%|Medium| +|649|[Dota2 Senate](https://github.com/grandyang/leetcode/issues/649)|35.60%|Medium| +|648|[Replace Words](https://github.com/grandyang/leetcode/issues/648)|48.40%|Medium| +|647|[Palindromic Substrings](https://github.com/grandyang/leetcode/issues/647)|55.70%|Medium| +|646|[Maximum Length of Pair Chain](https://github.com/grandyang/leetcode/issues/646)|47.40%|Medium| +|645|[Set Mismatch](https://github.com/grandyang/leetcode/issues/645)|40.40%|Easy| +|644|[Maximum Average Subarray II](https://github.com/grandyang/leetcode/issues/644) $|20.30%|Hard| +|643|[Maximum Average Subarray I](https://github.com/grandyang/leetcode/issues/643)|38.40%|Easy| +|642|[Design Search Autocomplete System](https://github.com/grandyang/leetcode/issues/642) $|29.40%|Hard| +|641|[Design Circular Deque](https://github.com/grandyang/leetcode/issues/641)|48.00%|Medium| +|640|[Solve the Equation](https://github.com/grandyang/leetcode/issues/640)|39.00%|Medium| +|639|[Decode Ways II](https://github.com/grandyang/leetcode/issues/639)|22.80%|Hard| +|638|[Shopping Offers](https://github.com/grandyang/leetcode/issues/638)|41.50%|Medium| +|637|[Average of Levels in Binary Tree](https://github.com/grandyang/leetcode/issues/637)|55.60%|Easy| +|636|[Exclusive Time of Functions](https://github.com/grandyang/leetcode/issues/636)|40.30%|Medium| +|635|[Design Log Storage System](https://github.com/grandyang/leetcode/issues/635) $|47.70%|Medium| +|634|[Find the Derangement of An Array](https://github.com/grandyang/leetcode/issues/634) $|32.70%|Medium| +|633|[Sum of Square Numbers](https://github.com/grandyang/leetcode/issues/633)|31.60%|Easy| +|632|[Smallest Range](https://github.com/grandyang/leetcode/issues/632)|42.80%|Hard| +|631|[Design Excel Sum Formula](https://github.com/grandyang/leetcode/issues/631) $|25.60%|Hard| +|630|[Course Schedule III](https://github.com/grandyang/leetcode/issues/630)|20.50%|Medium| +|629|[K Inverse Pairs Array](https://github.com/grandyang/leetcode/issues/629)|23.90%|Hard| +|628|[Maximum Product of Three Numbers](https://github.com/grandyang/leetcode/issues/628)|45.40%|Easy| |627|Swap Salary|67.40%|Easy| |626|Exchange Seats|49.60%|Medium| -|625|[Minimum Factorization](https://github.com/grandyang/LeetCode-All-In-One/issues/625)|29.50%|Medium| -|624|[Maximum Distance in Arrays](https://github.com/grandyang/LeetCode-All-In-One/issues/624) $|32.70%|Easy| -|623|[Add One Row to Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/623)|48.70%|Medium| -|622|[Design Circular Queue](https://github.com/grandyang/LeetCode-All-In-One/issues/622)|36.60%|Medium| -|621|[Task Scheduler](https://github.com/grandyang/LeetCode-All-In-One/issues/621)|41.40%|Medium| +|625|[Minimum Factorization](https://github.com/grandyang/leetcode/issues/625)|29.50%|Medium| +|624|[Maximum Distance in Arrays](https://github.com/grandyang/leetcode/issues/624) $|32.70%|Easy| +|623|[Add One Row to Tree](https://github.com/grandyang/leetcode/issues/623)|48.70%|Medium| +|622|[Design Circular Queue](https://github.com/grandyang/leetcode/issues/622)|36.60%|Medium| +|621|[Task Scheduler](https://github.com/grandyang/leetcode/issues/621)|41.40%|Medium| |620|Not Boring Movies|59.80%|Easy| |619|Biggest Single Number $|36.60%|Easy| |618|Students Report By Geography $|40.40%|Hard| -|617|[Merge Two Binary Trees](https://github.com/grandyang/LeetCode-All-In-One/issues/617)|69.60%|Easy| -|616|[Add Bold Tag in String](https://github.com/grandyang/LeetCode-All-In-One/issues/616) $|37.30%|Medium| +|617|[Merge Two Binary Trees](https://github.com/grandyang/leetcode/issues/617)|69.60%|Easy| +|616|[Add Bold Tag in String](https://github.com/grandyang/leetcode/issues/616) $|37.30%|Medium| |615|Average Salary: Departments VS Company $|33.00%|Hard| |614|Second Degree Follower $|22.70%|Medium| |613|Shortest Distance in a Line $|70.60%|Easy| |612|Shortest Distance in a Plane $|51.00%|Medium| -|611|[Valid Triangle Number](https://github.com/grandyang/LeetCode-All-In-One/issues/611)|38.90%|Medium| +|611|[Valid Triangle Number](https://github.com/grandyang/leetcode/issues/611)|38.90%|Medium| |610|Triangle Judgement $|59.10%|Easy| -|609|[Find Duplicate File in System](https://github.com/grandyang/LeetCode-All-In-One/issues/609)|52.50%|Medium| +|609|[Find Duplicate File in System](https://github.com/grandyang/leetcode/issues/609)|52.50%|Medium| |608|Tree Node $|54.60%|Medium| -|607|[Sales Person ](https://github.com/grandyang/LeetCode-All-In-One/issues/607) $|51.10%|Easy| -|606|[Construct String from Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/606)|51.80%|Easy| -|605|[Can Place Flowers](https://github.com/grandyang/LeetCode-All-In-One/issues/605)|30.00%|Easy| -|604|[Design Compressed String Iterator](https://github.com/grandyang/LeetCode-All-In-One/issues/604) $|31.60%|Easy| +|607|[Sales Person ](https://github.com/grandyang/leetcode/issues/607) $|51.10%|Easy| +|606|[Construct String from Binary Tree](https://github.com/grandyang/leetcode/issues/606)|51.80%|Easy| +|605|[Can Place Flowers](https://github.com/grandyang/leetcode/issues/605)|30.00%|Easy| +|604|[Design Compressed String Iterator](https://github.com/grandyang/leetcode/issues/604) $|31.60%|Easy| |603|Consecutive Available Seats $|54.50%|Easy| |602|Friend Requests II: Who Has the Most Friends $|42.50%|Medium| |601|Human Traffic of Stadium|33.80%|Hard| -|600|[Non-negative Integers without Consecutive Ones](https://github.com/grandyang/LeetCode-All-In-One/issues/600)|27.40%|Hard| -|599|[Minimum Index Sum of Two Lists](https://github.com/grandyang/LeetCode-All-In-One/issues/599)|48.00%|Easy| -|598|[Range Addition II](https://github.com/grandyang/LeetCode-All-In-One/issues/598)|48.30%|Easy| +|600|[Non-negative Integers without Consecutive Ones](https://github.com/grandyang/leetcode/issues/600)|27.40%|Hard| +|599|[Minimum Index Sum of Two Lists](https://github.com/grandyang/leetcode/issues/599)|48.00%|Easy| +|598|[Range Addition II](https://github.com/grandyang/leetcode/issues/598)|48.30%|Easy| |597|Friend Requests I: Overall Acceptance Rate $|38.40%|Easy| |596|Classes More Than 5 Students|33.40%|Easy| -|595|[Big Countries](https://github.com/grandyang/LeetCode-All-In-One/issues/595)|72.00%|Easy| -|594|[Longest Harmonious Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/594)|40.00%|Easy| -|593|[Valid Square](https://github.com/grandyang/LeetCode-All-In-One/issues/593)|39.20%|Medium| -|592|[Fraction Addition and Subtraction](https://github.com/grandyang/LeetCode-All-In-One/issues/592)|47.00%|Medium| -|591|[Tag Validator](https://github.com/grandyang/LeetCode-All-In-One/issues/591)|26.40%|Hard| -|590|[N-ary Tree Postorder Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/590)|63.00%|Easy| -|589|[N-ary Tree Preorder Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/589)|63.10%|Easy| -|588|[Design In-Memory File System](https://github.com/grandyang/LeetCode-All-In-One/issues/588) $|32.40%|Hard| -|587|[Erect the Fence](https://github.com/grandyang/LeetCode-All-In-One/issues/587)|29.90%|Hard| +|595|[Big Countries](https://github.com/grandyang/leetcode/issues/595)|72.00%|Easy| +|594|[Longest Harmonious Subsequence](https://github.com/grandyang/leetcode/issues/594)|40.00%|Easy| +|593|[Valid Square](https://github.com/grandyang/leetcode/issues/593)|39.20%|Medium| +|592|[Fraction Addition and Subtraction](https://github.com/grandyang/leetcode/issues/592)|47.00%|Medium| +|591|[Tag Validator](https://github.com/grandyang/leetcode/issues/591)|26.40%|Hard| +|590|[N-ary Tree Postorder Traversal](https://github.com/grandyang/leetcode/issues/590)|63.00%|Easy| +|589|[N-ary Tree Preorder Traversal](https://github.com/grandyang/leetcode/issues/589)|63.10%|Easy| +|588|[Design In-Memory File System](https://github.com/grandyang/leetcode/issues/588) $|32.40%|Hard| +|587|[Erect the Fence](https://github.com/grandyang/leetcode/issues/587)|29.90%|Hard| |586|Customer Placing the Largest Number of Orders $|62.50%|Easy| |585|Investments in 2016 $|44.60%|Medium| |584|Find Customer Referee $|63.60%|Easy| -|583|[Delete Operation for Two Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/583)|44.00%|Medium| -|582|[Kill Process](https://github.com/grandyang/LeetCode-All-In-One/issues/582) $|47.70%|Medium| -|581|[Shortest Unsorted Continuous Subarray](https://github.com/grandyang/LeetCode-All-In-One/issues/581)|30.10%|Easy| +|583|[Delete Operation for Two Strings](https://github.com/grandyang/leetcode/issues/583)|44.00%|Medium| +|582|[Kill Process](https://github.com/grandyang/leetcode/issues/582) $|47.70%|Medium| +|581|[Shortest Unsorted Continuous Subarray](https://github.com/grandyang/leetcode/issues/581)|30.10%|Easy| |580|Count Student Number in Departments $|40.00%|Medium| |579|Find Cumulative Salary of an Employee $|30.90%|Hard| |578|Get Highest Answer Rate Question $|33.10%|Medium| |577|Employee Bonus $|53.80%|Easy| -|576|[Out of Boundary Paths](https://github.com/grandyang/LeetCode-All-In-One/issues/576)|33.10%|Medium| -|575|[Distribute Candies](https://github.com/grandyang/LeetCode-All-In-One/issues/575)|59.50%|Easy| -|574|[Winning Candidate ](https://github.com/grandyang/LeetCode-All-In-One/issues/574) $|34.50%|Medium| -|573|[Squirrel Simulation](https://github.com/grandyang/LeetCode-All-In-One/issues/573) $|51.00%|Medium| -|572|[Subtree of Another Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/572)|41.00%|Easy| +|576|[Out of Boundary Paths](https://github.com/grandyang/leetcode/issues/576)|33.10%|Medium| +|575|[Distribute Candies](https://github.com/grandyang/leetcode/issues/575)|59.50%|Easy| +|574|[Winning Candidate ](https://github.com/grandyang/leetcode/issues/574) $|34.50%|Medium| +|573|[Squirrel Simulation](https://github.com/grandyang/leetcode/issues/573) $|51.00%|Medium| +|572|[Subtree of Another Tree](https://github.com/grandyang/leetcode/issues/572)|41.00%|Easy| |571|Find Median Given Frequency of Numbers $|44.90%|Hard| |570|Managers with at Least 5 Direct Reports $|59.00%|Medium| -|569|[Median Employee Salary ](https://github.com/grandyang/LeetCode-All-In-One/issues/569) $|41.60%|Hard| -|568|[Maximum Vacation Days](https://github.com/grandyang/LeetCode-All-In-One/issues/568) $|39.90%|Hard| -|567|[Permutation in String](https://github.com/grandyang/LeetCode-All-In-One/issues/567)|36.30%|Medium| -|566|[Reshape the Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/566)|59.80%|Easy| -|565|[Array Nesting](https://github.com/grandyang/LeetCode-All-In-One/issues/565)|50.00%|Medium| -|564|[Find the Closest Palindrome](https://github.com/grandyang/LeetCode-All-In-One/issues/564)|16.60%|Hard| -|563|[Binary Tree Tilt](https://github.com/grandyang/LeetCode-All-In-One/issues/563)|47.00%|Easy| -|562|[Longest Line of Consecutive One in Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/562) $|38.80%|Medium| -|561|[Array Partition I](https://github.com/grandyang/LeetCode-All-In-One/issues/561)|69.80%|Easy| -|560|[Subarray Sum Equals K](https://github.com/grandyang/LeetCode-All-In-One/issues/560)|41.80%|Medium| -|559|[Maximum Depth of N-ary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/559)|62.10%|Easy| -|558|[Quad Tree Intersection](https://github.com/grandyang/LeetCode-All-In-One/issues/558)|36.40%|Easy| -|557|[Reverse Words in a String III](https://github.com/grandyang/LeetCode-All-In-One/issues/557)|61.20%|Easy| -|556|[Next Greater Element III](https://github.com/grandyang/LeetCode-All-In-One/issues/556)|27.70%|Medium| -|555|[Split Concatenated Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/555) $|30.00%|Medium| -|554|[Brick Wall](https://github.com/grandyang/LeetCode-All-In-One/issues/554)|42.70%|Medium| -|553|[Optimal Division](https://github.com/grandyang/LeetCode-All-In-One/issues/553)|55.20%|Medium| -|552|[Student Attendance Record II](https://github.com/grandyang/LeetCode-All-In-One/issues/552)|28.50%|Hard| -|551|[Student Attendance Record I](https://github.com/grandyang/LeetCode-All-In-One/issues/551)|43.90%|Easy| -|549|[Binary Tree Longest Consecutive Sequence II](https://github.com/grandyang/LeetCode-All-In-One/issues/549) $|38.10%|Medium| -|548|[Split Array with Equal Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/548) $|30.80%|Medium| -|547|[Friend Circles](https://github.com/grandyang/LeetCode-All-In-One/issues/547)|49.00%|Medium| -|546|[Remove Boxes](https://github.com/grandyang/LeetCode-All-In-One/issues/546)|29.60%|Hard| -|545|[Boundary of Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/545) $|29.10%|Medium| -|544|[Output Contest Matches](https://github.com/grandyang/LeetCode-All-In-One/issues/544) $|73.20%|Medium| -|543|[Diameter of Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/543)|42.70%|Easy| -|542|[01 Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/542)|32.50%|Medium| -|541|[Reverse String II](https://github.com/grandyang/LeetCode-All-In-One/issues/541)|44.40%|Easy| -|540|[Single Element in a Sorted Array](https://github.com/grandyang/LeetCode-All-In-One/issues/540)|55.90%|Medium| -|539|[Minimum Time Difference](https://github.com/grandyang/LeetCode-All-In-One/issues/539)|44.70%|Medium| -|538|[Convert BST to Greater Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/538)|52.70%|Medium| -|537|[Complex Number Multiplication](https://github.com/grandyang/LeetCode-All-In-One/issues/537)|65.90%|Medium| -|536|[Construct Binary Tree from String](https://github.com/grandyang/LeetCode-All-In-One/issues/536) $|36.30%|Medium| -|535|[Encode and Decode TinyURL](https://github.com/grandyang/LeetCode-All-In-One/issues/535)|76.10%|Medium| -|534|[Design TinyURL](https://github.com/grandyang/LeetCode-All-In-One/issues/534)|N/A|Medium| -|533|[Lonely Pixel II](https://github.com/grandyang/LeetCode-All-In-One/issues/533) $|38.90%|Medium| -|532|[K-diff Pairs in an Array](https://github.com/grandyang/LeetCode-All-In-One/issues/532)|27.20%|Easy| -|531|[Lonely Pixel I](https://github.com/grandyang/LeetCode-All-In-One/issues/531) $|50.20%|Medium| -|530|[Minimum Absolute Difference in BST](https://github.com/grandyang/LeetCode-All-In-One/issues/530)|48.00%|Easy| -|529|[Minesweeper](https://github.com/grandyang/LeetCode-All-In-One/issues/529)|52.00%|Medium| -|528|[Random Pick with Weight](https://github.com/grandyang/LeetCode-All-In-One/issues/528)|41.80%|Medium| -|527|[Word Abbreviation](https://github.com/grandyang/LeetCode-All-In-One/issues/527) $|33.90%|Hard| -|526|[Beautiful Arrangement](https://github.com/grandyang/LeetCode-All-In-One/issues/526)|53.50%|Medium| -|525|[Contiguous Array](https://github.com/grandyang/LeetCode-All-In-One/issues/525)|34.40%|Medium| -|524|[Longest Word in Dictionary through Deleting](https://github.com/grandyang/LeetCode-All-In-One/issues/524)|40.20%|Medium| -|523|[Continuous Subarray Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/523)|21.3|Medium| -|522|[Longest Uncommon Subsequence II](https://github.com/grandyang/LeetCode-All-In-One/issues/522)|28.10%|Medium| -|521|[Longest Uncommon Subsequence I](https://github.com/grandyang/LeetCode-All-In-One/issues/521)|50.70%|Easy| -|520|[Detect Capital](https://github.com/grandyang/LeetCode-All-In-One/issues/520)|54.20%|Easy| -|519|[Random Flip Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/519)|32.20%|Medium| -|518|[Coin Change 2](https://github.com/grandyang/LeetCode-All-In-One/issues/518)|33.20%|Medium| -|517|[Super Washing Machines](https://github.com/grandyang/LeetCode-All-In-One/issues/517)|34.60%|Hard| -|516|[Longest Palindromic Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/516)|42.00%|Medium| -|515|[Find Largest Value in Each Tree Row](https://github.com/grandyang/LeetCode-All-In-One/issues/515)|52.70%|Medium| -|514|[Freedom Trail](https://github.com/grandyang/LeetCode-All-In-One/issues/514)|27.20%|Hard| -|513|[Find Bottom Left Tree Value](https://github.com/grandyang/LeetCode-All-In-One/issues/513)|55.60%|Medium| -|510|[Inorder Successor in BST II](https://github.com/grandyang/LeetCode-All-In-One/issues/510) $|56.20%|Medium| -|509|[Fibonacci Number](https://github.com/grandyang/LeetCode-All-In-One/issues/509)|66.40%|Easy| -|508|[Most Frequent Subtree Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/508)|52.00%|Medium| -|507|[Perfect Number](https://github.com/grandyang/LeetCode-All-In-One/issues/507)|32.70%|Easy| -|506|[Relative Ranks](https://github.com/grandyang/LeetCode-All-In-One/issues/506)|48.50%|Easy| -|505|[The Maze II](https://github.com/grandyang/LeetCode-All-In-One/issues/505)|34.80%|Medium| -|504|[Base 7](https://github.com/grandyang/LeetCode-All-In-One/issues/504)|46.40%|Easy| -|503|[Next Greater Element II](https://github.com/grandyang/LeetCode-All-In-One/issues/503)|46.20%|Medium| -|502|[IPO](https://github.com/grandyang/LeetCode-All-In-One/issues/502)|32.40%|Hard| -|501|[Find Mode in Binary Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/501)|39.40%|Easy| -|500|[Keyboard Row](https://github.com/grandyang/LeetCode-All-In-One/issues/500)|60.20%|Easy| -|499|[The Maze III](https://github.com/grandyang/LeetCode-All-In-One/issues/499)|32.00%|Hard| -|498|[Diagonal Traverse](https://github.com/grandyang/LeetCode-All-In-One/issues/498)|46.20%|Medium| -|497|[Random Point in Non-overlapping Rectangles](https://github.com/grandyang/LeetCode-All-In-One/issues/497)|33.20%|Medium| -|496|[Next Greater Element I](https://github.com/grandyang/LeetCode-All-In-One/issues/496)|58.80%|Easy| -|495|[Teemo Attacking](https://github.com/grandyang/LeetCode-All-In-One/issues/495)|51.90%|Medium| -|494|[Target Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/494)|44.40%|Medium| -|493|[Reverse Pairs](https://github.com/grandyang/LeetCode-All-In-One/issues/493)|17.10%|Hard| -|492|[Construct the Rectangle](https://github.com/grandyang/LeetCode-All-In-One/issues/492)|49.70%|Easy| -|491|[Increasing Subsequences](https://github.com/grandyang/LeetCode-All-In-One/issues/491)|39.30%|Medium| -|490|[The Maze](https://github.com/grandyang/LeetCode-All-In-One/issues/490)|42.80%|Medium| -|489|[Robot Room Cleaner](https://github.com/grandyang/LeetCode-All-In-One/issues/489)|57.10%|Hard| -|488|[Zuma Game](https://github.com/grandyang/LeetCode-All-In-One/issues/488)|38.00%|Hard| -|487|[Max Consecutive Ones II](https://github.com/grandyang/LeetCode-All-In-One/issues/487) $|42.70%|Medium| -|486|[Predict the Winner](https://github.com/grandyang/LeetCode-All-In-One/issues/486)|43.60%|Medium| -|485|[Max Consecutive Ones](https://github.com/grandyang/LeetCode-All-In-One/issues/485)|55.30%|Easy| -|484|[Find Permutation](https://github.com/grandyang/LeetCode-All-In-One/issues/484) $|50.50%|Medium| -|483|[Smallest Good Base](https://github.com/grandyang/LeetCode-All-In-One/issues/483)|30.60%|Hard| -|482|[License Key Formatting](https://github.com/grandyang/LeetCode-All-In-One/issues/482)|41.20%|Medium| -|481|[Magical String](https://github.com/grandyang/LeetCode-All-In-One/issues/481)|46.20%|Medium| -|480|[Sliding Window Median](https://github.com/grandyang/LeetCode-All-In-One/issues/480)|31.00%|Hard| -|479|[Largest Palindrome Product](https://github.com/grandyang/LeetCode-All-In-One/issues/479)|23.90%|Easy| -|478|[Generate Random Point in a Circle](https://github.com/grandyang/LeetCode-All-In-One/issues/478)|33.80%|Medium| -|477|[Total Hamming Distance](https://github.com/grandyang/LeetCode-All-In-One/issues/477)|44.10%|Medium| -|476|[Number Complement](https://github.com/grandyang/LeetCode-All-In-One/issues/476)|61.20%|Easy| -|475|[Heaters](https://github.com/grandyang/LeetCode-All-In-One/issues/475)|30.20%|Easy| -|474|[Ones and Zeroes](https://github.com/grandyang/LeetCode-All-In-One/issues/474)|34.90%|Medium| -|473|[Matchsticks to Square](https://github.com/grandyang/LeetCode-All-In-One/issues/473)|31.80%|Medium| -|472|[Concatenated Words](https://github.com/grandyang/LeetCode-All-In-One/issues/472)|29.20%|Hard| -|471|[Encode String with Shortest Length](https://github.com/grandyang/LeetCode-All-In-One/issues/471) $|43.50%|Hard| -|470|[Implement Rand10() Using Rand7()](https://github.com/grandyang/LeetCode-All-In-One/issues/470)|43.00%|Medium| -|469|[Convex Polygon](https://github.com/grandyang/LeetCode-All-In-One/issues/469) $|27.20%|Medium| -|468|[Validate IP Address](https://github.com/grandyang/LeetCode-All-In-One/issues/468)|22.10%|Medium| -|467|[Unique Substrings in Wraparound String](https://github.com/grandyang/LeetCode-All-In-One/issues/467)|29.90%|Medium| -|466|[Count The Repetitions](https://github.com/grandyang/LeetCode-All-In-One/issues/466)|24.20%|Hard| -|465|[Optimal Account Balancing](https://github.com/grandyang/LeetCode-All-In-One/issues/465) $|29.20%|Hard| -|464|[Can I Win](https://github.com/grandyang/LeetCode-All-In-One/issues/464)|22.20%|Medium| -|463|[Island Perimeter](https://github.com/grandyang/LeetCode-All-In-One/issues/463)|56.70%|Easy| -|462|[Minimum Moves to Equal Array Elements II](https://github.com/grandyang/LeetCode-All-In-One/issues/462)|50.90%|Medium| -|461|[Hamming Distance](https://github.com/grandyang/LeetCode-All-In-One/issues/461)|73.20%|Easy| -|460|[LFU Cache](https://github.com/grandyang/LeetCode-All-In-One/issues/460)|18.30%|Hard| -|459|[Repeated Substring Pattern](https://github.com/grandyang/LeetCode-All-In-One/issues/459)|39.70%|Easy| -|458|[Poor Pigs](https://github.com/grandyang/LeetCode-All-In-One/issues/458)|40.70%|Easy| -|457|[Circular Array Loop](https://github.com/grandyang/LeetCode-All-In-One/issues/457)|20.60%|Medium| -|456|[132 Pattern](https://github.com/grandyang/LeetCode-All-In-One/issues/456)|28.00%|Medium| -|455|[Assign Cookies](https://github.com/grandyang/LeetCode-All-In-One/issues/455)|48.10%|Easy| -|454|[4Sum II](https://github.com/grandyang/LeetCode-All-In-One/issues/454)|42.80%|Medium| -|453|[Minimum Moves to Equal Array Elements](https://github.com/grandyang/LeetCode-All-In-One/issues/453)|46.30%|Easy| -|452|[Minimum Number of Arrows to Burst Balloons](https://github.com/grandyang/LeetCode-All-In-One/issues/452)|42.10%|Medium| -|451|[Sort Characters By Frequency](https://github.com/grandyang/LeetCode-All-In-One/issues/451)|50.90%|Medium| -|450|[Delete Node in a BST](https://github.com/grandyang/LeetCode-All-In-One/issues/450)|34.50%|Medium| -|449|[Serialize and Deserialize BST](https://github.com/grandyang/LeetCode-All-In-One/issues/449)|41.20%|Medium| -|448|[Find All Numbers Disappeared in an Array](https://github.com/grandyang/LeetCode-All-In-One/issues/448)|58.30%|Easy| -|447|[Number of Boomerangs](https://github.com/grandyang/LeetCode-All-In-One/issues/447)|42.20%|Easy| -|446|[Arithmetic Slices II - Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/446)|22.30%|Hard| -|445|[Add Two Numbers II](https://github.com/grandyang/LeetCode-All-In-One/issues/445)|45.40%|Medium| -|444|[Sequence Reconstruction](https://github.com/grandyang/LeetCode-All-In-One/issues/444) $|20.50%|Medium| -|443|[String Compression](https://github.com/grandyang/LeetCode-All-In-One/issues/443)|35.80%|Easy| -|442|[Find All Duplicates in an Array](https://github.com/grandyang/LeetCode-All-In-One/issues/442)|46.40%|Medium| -|441|[Arranging Coins](https://github.com/grandyang/LeetCode-All-In-One/issues/441)|36.20%|Easy| -|440|[K-th Smallest in Lexicographical Order](https://github.com/grandyang/LeetCode-All-In-One/issues/440)|21.50%|Hard| -|439|[Ternary Expression Parser](https://github.com/grandyang/LeetCode-All-In-One/issues/439) $|49.40%|Medium| -|438|[Find All Anagrams in a String](https://github.com/grandyang/LeetCode-All-In-One/issues/438)|33.50%|Easy| -|437|[Path Sum III](https://github.com/grandyang/LeetCode-All-In-One/issues/437)|38.60%|Easy| -|436|[Find Right Interval](https://github.com/grandyang/LeetCode-All-In-One/issues/436)|42.30%|Medium| -|435|[Non-overlapping Intervals](https://github.com/grandyang/LeetCode-All-In-One/issues/435)|39.80%|Medium| -|434|[Number of Segments in a String](https://github.com/grandyang/LeetCode-All-In-One/issues/434)|38.40%|Easy| -|433|[Minimum Genetic Mutation](https://github.com/grandyang/LeetCode-All-In-One/issues/433)|33.50%|Medium| -|432|[All O`one Data Structure](https://github.com/grandyang/LeetCode-All-In-One/issues/432)|28.30%|Hard| -|431|[Encode N-ary Tree to Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/431) $|53.70%|Hard| -|430|[Flatten a Multilevel Doubly Linked List](https://github.com/grandyang/LeetCode-All-In-One/issues/430)|36.20%|Medium| -|429|[N-ary Tree Level Order Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/429)|55.80%|Easy| -|428|[Serialize and Deserialize N-ary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/428) $|48.10%|Hard| -|427|[Construct Quad Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/427)|49.20%|Easy| -|426|[Convert Binary Search Tree to Sorted Doubly Linked List](https://github.com/grandyang/LeetCode-All-In-One/issues/426)|43.30%|Medium| -|425|[Word Squares](https://github.com/grandyang/LeetCode-All-In-One/issues/425) $|40.10%|Hard| -|424|[Longest Repeating Character Replacement](https://github.com/grandyang/LeetCode-All-In-One/issues/424)|38.10%|Medium| -|423|[Reconstruct Original Digits from English](https://github.com/grandyang/LeetCode-All-In-One/issues/423)|40.80%|Medium| -|422|[Valid Word Square](https://github.com/grandyang/LeetCode-All-In-One/issues/422) $|36.40%|Easy| -|421|[Maximum XOR of Two Numbers in an Array](https://github.com/grandyang/LeetCode-All-In-One/issues/421)|36.40%|Medium| -|420|[Strong Password Checker](https://github.com/grandyang/LeetCode-All-In-One/issues/420)|22.10%|Hard| -|419|[Battleships in a Board](https://github.com/grandyang/LeetCode-All-In-One/issues/419)|59.30%|Medium| -|418|[Sentence Screen Fitting](https://github.com/grandyang/LeetCode-All-In-One/issues/418) $|25.10%|Medium| -|417|[Pacific Atlantic Water Flow](https://github.com/grandyang/LeetCode-All-In-One/issues/417)|31.10%|Medium| -|416|[Partition Equal Subset Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/416)|36.80%|Medium| -|415|[Add Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/415)|41.50%|Easy| -|414|[Third Maximum Number](https://github.com/grandyang/LeetCode-All-In-One/issues/414)|26.50%|Easy| -|413|[Arithmetic Slices](https://github.com/grandyang/LeetCode-All-In-One/issues/413)|53.50%|Medium| -|412|[Fizz Buzz](https://github.com/grandyang/LeetCode-All-In-One/issues/412)|57.50%|Easy| -|411|[Minimum Unique Word Abbreviation](https://github.com/grandyang/LeetCode-All-In-One/issues/411) $|25.60%|Hard| -|410|[Split Array Largest Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/410)|25.00%|Hard| -|409|[Longest Palindrome](https://github.com/grandyang/LeetCode-All-In-One/issues/409)|44.90%|Easy| -|408|[Valid Word Abbreviation](https://github.com/grandyang/LeetCode-All-In-One/issues/408) $|26.20%|Easy| -|407|[Trapping Rain Water II](https://github.com/grandyang/LeetCode-All-In-One/issues/407)|33.10%|Hard| -|406|[Queue Reconstruction by Height](https://github.com/grandyang/LeetCode-All-In-One/issues/406)|54.10%|Medium| -|405|[Convert a Number to Hexadecimal](https://github.com/grandyang/LeetCode-All-In-One/issues/405)|41.80%|Easy| -|404|[Sum of Left Leaves](https://github.com/grandyang/LeetCode-All-In-One/issues/404)|46.20%|Easy| -|403|[Frog Jump](https://github.com/grandyang/LeetCode-All-In-One/issues/403)|31.70%|Hard| -|402|[Remove K Digits](https://github.com/grandyang/LeetCode-All-In-One/issues/402)|25.90%|Medium| -|401|[Binary Watch](https://github.com/grandyang/LeetCode-All-In-One/issues/401)|43.00%|Easy| -|400|[Nth Digit](https://github.com/grandyang/LeetCode-All-In-One/issues/400)|30.70%|Easy| -|399|[Evaluate Division](https://github.com/grandyang/LeetCode-All-In-One/issues/399)|34.60%|Medium| -|398|[Random Pick Index](https://github.com/grandyang/LeetCode-All-In-One/issues/398)|30.40%|Medium| -|397|[Integer Replacement](https://github.com/grandyang/LeetCode-All-In-One/issues/397)|25.90%|Easy| -|396|[Rotate Function](https://github.com/grandyang/LeetCode-All-In-One/issues/396)|28.40%|Easy| -|395|[Longest Substring with At Least K Repeating Characters](https://github.com/grandyang/LeetCode-All-In-One/issues/395)|32.50%|Medium| -|394|[Decode String](https://github.com/grandyang/LeetCode-All-In-One/issues/394)|38.60%|Medium| -|393|[UTF-8 Validation](https://github.com/grandyang/LeetCode-All-In-One/issues/393)|33.00%|Medium| -|392|[Is Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/392)|44.10%|Medium| -|391|[Perfect Rectangle](https://github.com/grandyang/LeetCode-All-In-One/issues/391)|13.30%|Hard| -|390|[Elimination Game](https://github.com/grandyang/LeetCode-All-In-One/issues/390)|12.50%|Medium| -|389|[Find the Difference](https://github.com/grandyang/LeetCode-All-In-One/issues/389)|49.90%|Easy| -|388|[Longest Absolute File Path](https://github.com/grandyang/LeetCode-All-In-One/issues/388)|28.30%|Medium| -|387|[First Unique Character in a String](https://github.com/grandyang/LeetCode-All-In-One/issues/387)|43.10%|Easy| -|386|[Lexicographical Numbers](https://github.com/grandyang/LeetCode-All-In-One/issues/386)|31.00%|Medium| -|385|[Mini Parser](https://github.com/grandyang/LeetCode-All-In-One/issues/385)|26.90%|Medium| -|384|[Shuffle an Array](https://github.com/grandyang/LeetCode-All-In-One/issues/384)|45.50%|Medium| -|383|[Ransom Note](https://github.com/grandyang/LeetCode-All-In-One/issues/383)|44.60%|Easy| -|382|[Linked List Random Node](https://github.com/grandyang/LeetCode-All-In-One/issues/382)|48.60%|Medium| -|381|[Insert Delete GetRandom O(1) - Duplicates allowed](https://github.com/grandyang/LeetCode-All-In-One/issues/381)|30.90%|Hard| -|380|[Insert Delete GetRandom O(1)](https://github.com/grandyang/LeetCode-All-In-One/issues/380)|33.80%|Medium| -|379|[Design Phone Directory](https://github.com/grandyang/LeetCode-All-In-One/issues/379) $|25.80%|Medium| -|378|[Kth Smallest Element in a Sorted Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/378)|40.20%|Medium| -|377|[Combination Sum IV](https://github.com/grandyang/LeetCode-All-In-One/issues/377)|37.50%|Medium| -|376|[Wiggle Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/376)|35.80%|Medium| -|375|[Guess Number Higher or Lower II](https://github.com/grandyang/LeetCode-All-In-One/issues/375)|28.30%|Medium| -|374|[Guess Number Higher or Lower](https://github.com/grandyang/LeetCode-All-In-One/issues/374)|31.70%|Easy| -|373|[Find K Pairs with Smallest Sums](https://github.com/grandyang/LeetCode-All-In-One/issues/373)|25.50%|Medium| -|372|[Super Pow](https://github.com/grandyang/LeetCode-All-In-One/issues/372)|30.10%|Medium| -|371|[Sum of Two Integers](https://github.com/grandyang/LeetCode-All-In-One/issues/371)|54.00%|Easy| -|370|[Range Addition](https://github.com/grandyang/LeetCode-All-In-One/issues/370) $|49.90%|Medium| -|369|[Plus One Linked List](https://github.com/grandyang/LeetCode-All-In-One/issues/369) $|50.10%|Medium| -|368|[Largest Divisible Subset](https://github.com/grandyang/LeetCode-All-In-One/issues/368)|32.00%|Medium| -|367|[Valid Perfect Square](https://github.com/grandyang/LeetCode-All-In-One/issues/367)|36.60%|Medium| -|366|[Find Leaves of Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/366) $|53.60%|Medium| -|365|[Water and Jug Problem](https://github.com/grandyang/LeetCode-All-In-One/issues/365)|20.10%|Medium| -|364|[Nested List Weight Sum II](https://github.com/grandyang/LeetCode-All-In-One/issues/364) $|47.20%|Medium| -|363|[Max Sum of Rectangle No Larger Than K](https://github.com/grandyang/LeetCode-All-In-One/issues/363)|27.00%|Hard| -|362|[Design Hit Counter](https://github.com/grandyang/LeetCode-All-In-One/issues/362) $|48.30%|Medium| -|361|[Bomb Enemy](https://github.com/grandyang/LeetCode-All-In-One/issues/361) $|32.60%|Medium| -|360|[Sort Transformed Array](https://github.com/grandyang/LeetCode-All-In-One/issues/360) $|40.80%|Medium| -|359|[Logger Rate Limiter](https://github.com/grandyang/LeetCode-All-In-One/issues/359) $|56.00%|Easy| -|358|[Rearrange String k Distance Apart](https://github.com/grandyang/LeetCode-All-In-One/issues/358) $|26.90%|Hard| -|357|[Count Numbers with Unique Digits](https://github.com/grandyang/LeetCode-All-In-One/issues/357)|42.50%|Medium| -|356|[Line Reflection](https://github.com/grandyang/LeetCode-All-In-One/issues/356) $|28.70%|Medium| -|355|[Design Twitter](https://github.com/grandyang/LeetCode-All-In-One/issues/355)|22.20%|Medium| -|354|[Russian Doll Envelopes](https://github.com/grandyang/LeetCode-All-In-One/issues/354)|27.10%|Hard| -|353|[Design Snake Game](https://github.com/grandyang/LeetCode-All-In-One/issues/353) $|19.80%|Medium| -|352|[Data Stream as Disjoint Intervals](https://github.com/grandyang/LeetCode-All-In-One/issues/352)|34.40%|Hard| -|351|[Android Unlock Patterns](https://github.com/grandyang/LeetCode-All-In-One/issues/351) $|32.00%|Medium| -|350|[Intersection of Two Arrays II](https://github.com/grandyang/LeetCode-All-In-One/issues/350)|41.50%|Easy| -|349|[Intersection of Two Arrays](https://github.com/grandyang/LeetCode-All-In-One/issues/349)|47.80%|Easy| -|348|[Design Tic-Tac-Toe ](https://github.com/grandyang/LeetCode-All-In-One/issues/348) $|45.60%|Medium| -|347|[Top K Frequent Elements](https://github.com/grandyang/LeetCode-All-In-One/issues/347)|44.50%|Medium| -|346|[Moving Average from Data Stream ](https://github.com/grandyang/LeetCode-All-In-One/issues/346) $|69.20%|Easy| -|345|[Reverse Vowels of a String](https://github.com/grandyang/LeetCode-All-In-One/issues/345)|35.30%|Easy| -|344|[Reverse String](https://github.com/grandyang/LeetCode-All-In-One/issues/344)|58.90%|Easy| -|343|[Integer Break](https://github.com/grandyang/LeetCode-All-In-One/issues/343)|43.60%|Medium| -|342|[Power of Four](https://github.com/grandyang/LeetCode-All-In-One/issues/342)|34.10%|Easy| -|341|[Flatten Nested List Iterator](https://github.com/grandyang/LeetCode-All-In-One/issues/341) $|18.70%|Medium| -|340|[Longest Substring with At Most K Distinct Characters](https://github.com/grandyang/LeetCode-All-In-One/issues/340) $|36.30%|Hard| -|339|[Nested List Weight Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/339) $|54.60%|Easy| -|338|[Counting Bits](https://github.com/grandyang/LeetCode-All-In-One/issues/338)|55.40%|Medium| -|337|[House Robber III](https://github.com/grandyang/LeetCode-All-In-One/issues/337)|37.00%|Medium| -|336|[Palindrome Pairs](https://github.com/grandyang/LeetCode-All-In-One/issues/336)|18.70%|Hard| -|335|[Self Crossing](https://github.com/grandyang/LeetCode-All-In-One/issues/335)|18.00%|Medium| -|334|[Increasing Triplet Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/334)|33.20%|Medium| -|333|[Largest BST Subtree](https://github.com/grandyang/LeetCode-All-In-One/issues/333) $|26.50%|Medium| -|332|[Reconstruct Itinerary](https://github.com/grandyang/LeetCode-All-In-One/issues/332)|23.40%|Medium| -|331|[Verify Preorder Serialization of a Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/331)|31.50%|Medium| -|330|[Patching Array](https://github.com/grandyang/LeetCode-All-In-One/issues/330)|28.80%|Medium| -|329|[Longest Increasing Path in a Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/329)|29.50%|Medium| -|328|[Odd Even Linked List](https://github.com/grandyang/LeetCode-All-In-One/issues/328)|37.80%|Easy| -|327|[Count of Range Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/327)|24.30%|Hard| -|326|[Power of Three](https://github.com/grandyang/LeetCode-All-In-One/issues/326)|35.30%|Easy| -|325|[Maximum Size Subarray Sum Equals k](https://github.com/grandyang/LeetCode-All-In-One/issues/325) $|39.60%|Easy| -|324|[Wiggle Sort II](https://github.com/grandyang/LeetCode-All-In-One/issues/324)|20.10%|Medium| -|323|[Number of Connected Components in an Undirected Graph](https://github.com/grandyang/LeetCode-All-In-One/issues/323) $|43.30%|Medium| -|322|[Coin Change](https://github.com/grandyang/LeetCode-All-In-One/issues/322)|24.90%|Medium| -|321|[Create Maximum Number](https://github.com/grandyang/LeetCode-All-In-One/issues/321)|19.10%|Hard| -|320|[Generalized Abbreviation](https://github.com/grandyang/LeetCode-All-In-One/issues/320) $|40.40%|Medium| -|319|[Bulb Switcher](https://github.com/grandyang/LeetCode-All-In-One/issues/319)|39.20%|Medium| -|318|[Maximum Product of Word Lengths](https://github.com/grandyang/LeetCode-All-In-One/issues/318)|38.70%|Medium| -|317|[Shortest Distance from All Buildings](https://github.com/grandyang/LeetCode-All-In-One/issues/317) $|29.10%|Hard| -|316|[Remove Duplicate Letters](https://github.com/grandyang/LeetCode-All-In-One/issues/316)|23.00%|Medium| -|315|[Count of Smaller Numbers After Self](https://github.com/grandyang/LeetCode-All-In-One/issues/315)|28.20%|Hard| -|314|[Binary Tree Vertical Order Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/314) $|30.10%|Medium| -|313|[Super Ugly Number](https://github.com/grandyang/LeetCode-All-In-One/issues/313)|31.20%|Medium| -|312|[Burst Balloons](https://github.com/grandyang/LeetCode-All-In-One/issues/312)|24.50%|Medium| -|311|[Sparse Matrix Multiplication](https://github.com/grandyang/LeetCode-All-In-One/issues/311) $|40.00%|Medium| -|310|[Minimum Height Trees](https://github.com/grandyang/LeetCode-All-In-One/issues/310)|20.20%|Medium| -|309|[Best Time to Buy and Sell Stock with Cooldown](https://github.com/grandyang/LeetCode-All-In-One/issues/309)|32.60%|Medium| -|308|[Range Sum Query 2D - Mutable](https://github.com/grandyang/LeetCode-All-In-One/issues/308) $|20.30%|Hard| -|307|[Range Sum Query - Mutable](https://github.com/grandyang/LeetCode-All-In-One/issues/307)|14.50%|Medium| -|306|[Additive Number](https://github.com/grandyang/LeetCode-All-In-One/issues/306)|23.30%|Medium| -|305|[Number of Islands II](https://github.com/grandyang/LeetCode-All-In-One/issues/305) $|26.70%|Hard| -|304|[Range Sum Query 2D - Immutable](https://github.com/grandyang/LeetCode-All-In-One/issues/304)|21.50%|Medium| -|303|[Range Sum Query - Immutable](https://github.com/grandyang/LeetCode-All-In-One/issues/303)|25.70%|Easy| -|302|[Smallest Rectangle Enclosing Black Pixels](https://github.com/grandyang/LeetCode-All-In-One/issues/302) $|36.70%|Hard| -|301|[Remove Invalid Parentheses](https://github.com/grandyang/LeetCode-All-In-One/issues/301)|27.00%|Hard| -|300|[Longest Increasing Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/300)|31.50%|Medium| -|299|[Bulls and Cows](https://github.com/grandyang/LeetCode-All-In-One/issues/299)|23.80%|Easy| -|298|[Binary Tree Longest Consecutive Sequence](https://github.com/grandyang/LeetCode-All-In-One/issues/298) $|32.20%|Medium| -|297|[Serialize and Deserialize Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/297)|23.80%|Medium| -|296|[Best Meeting Point](https://github.com/grandyang/LeetCode-All-In-One/issues/296) $|41.40%|Hard| -|295|[Find Median from Data Stream](https://github.com/grandyang/LeetCode-All-In-One/issues/295)|18.60%|Hard| -|294|[Flip Game II](https://github.com/grandyang/LeetCode-All-In-One/issues/294) $|38.10%|Medium| -|293|[Flip Game](https://github.com/grandyang/LeetCode-All-In-One/issues/293) $|47.60%|Easy| -|292|[Nim Game](https://github.com/grandyang/LeetCode-All-In-One/issues/292)|49.50%|Easy| -|291|[Word Pattern II](https://github.com/grandyang/LeetCode-All-In-One/issues/291) $|31.50%|Hard| -|290|[Word Pattern](https://github.com/grandyang/LeetCode-All-In-One/issues/290)|26.50%|Easy| -|289|[Game of Life](https://github.com/grandyang/LeetCode-All-In-One/issues/289)|32.60%|Medium| -|288|[Unique Word Abbreviation](https://github.com/grandyang/LeetCode-All-In-One/issues/288) $|16.80%|Easy| -|287|[Find the Duplicate Number](https://github.com/grandyang/LeetCode-All-In-One/issues/287)|32.80%|Hard| -|286|[Walls and Gates](https://github.com/grandyang/LeetCode-All-In-One/issues/286) $|29.90%|Medium| -|285|[Inorder Successor in BST](https://github.com/grandyang/LeetCode-All-In-One/issues/285) $|32.50%|Medium| -|284|[Peeking Iterator](https://github.com/grandyang/LeetCode-All-In-One/issues/284)|31.00%|Medium| -|283|[Move Zeroes](https://github.com/grandyang/LeetCode-All-In-One/issues/283)|41.40%|Easy| -|282|[Expression Add Operators](https://github.com/grandyang/LeetCode-All-In-One/issues/282)|18.90%|Hard| -|281|[Zigzag Iterator](https://github.com/grandyang/LeetCode-All-In-One/issues/281) $|37.20%|Medium| -|280|[Wiggle Sort](https://github.com/grandyang/LeetCode-All-In-One/issues/280) $|43.30%|Medium| -|279|[Perfect Squares](https://github.com/grandyang/LeetCode-All-In-One/issues/279)|28.80%|Medium| -|278|[First Bad Version](https://github.com/grandyang/LeetCode-All-In-One/issues/278)|19.80%|Easy| -|277|[Find the Celebrity](https://github.com/grandyang/LeetCode-All-In-One/issues/277) $|31.70%|Medium| -|276|[Paint Fence](https://github.com/grandyang/LeetCode-All-In-One/issues/276) $|25.00%|Easy| -|275|[H-Index II](https://github.com/grandyang/LeetCode-All-In-One/issues/275)|31.40%|Medium| -|274|[H-Index](https://github.com/grandyang/LeetCode-All-In-One/issues/274)|25.30%|Medium| -|273|[Integer to English Words](https://github.com/grandyang/LeetCode-All-In-One/issues/273)|15.50%|Medium| -|272|[Closest Binary Search Tree Value II](https://github.com/grandyang/LeetCode-All-In-One/issues/272) $|26.90%|Hard| -|271|[Encode and Decode Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/271) $|25.40%|Medium| -|270|[Closest Binary Search Tree Value](https://github.com/grandyang/LeetCode-All-In-One/issues/270) $|29.40%|Easy| -|269|[Alien Dictionary](https://github.com/grandyang/LeetCode-All-In-One/issues/269) $|16.50%|Hard| -|268|[Missing Number](https://github.com/grandyang/LeetCode-All-In-One/issues/268)|34.70%|Medium| -|267|[Palindrome Permutation II](https://github.com/grandyang/LeetCode-All-In-One/issues/267) $|22.50%|Medium| -|266|[Palindrome Permutation](https://github.com/grandyang/LeetCode-All-In-One/issues/266) $|45.80%|Easy| -|265|[Paint House II](https://github.com/grandyang/LeetCode-All-In-One/issues/265) $|30.00%|Hard| -|264|[Ugly Number II](https://github.com/grandyang/LeetCode-All-In-One/issues/264)|21.60%|Medium| -|263|[Ugly Number](https://github.com/grandyang/LeetCode-All-In-One/issues/263)|32.60%|Easy| -|262|[Trips and Users](https://github.com/grandyang/LeetCode-All-In-One/issues/262) *|16.10%|Hard| -|261|[Graph Valid Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/261) $|25.40%|Medium| -|260|[Single Number III](https://github.com/grandyang/LeetCode-All-In-One/issues/260)|37.60%|Medium| -|259|[3Sum Smaller](https://github.com/grandyang/LeetCode-All-In-One/issues/259) $|34.20%|Medium| -|258|[Add Digits](https://github.com/grandyang/LeetCode-All-In-One/issues/258)|46.50%|Easy| -|257|[Binary Tree Paths](https://github.com/grandyang/LeetCode-All-In-One/issues/257)|21.90%|Easy| -|256|[Paint House](https://github.com/grandyang/LeetCode-All-In-One/issues/256) $|38.40%|Medium| -|255|[Verify Preorder Sequence in Binary Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/255) $|32.30%|Medium| -|254|[Factor Combinations](https://github.com/grandyang/LeetCode-All-In-One/issues/254) $|29.00%|Medium| -|253|[Meeting Rooms II](https://github.com/grandyang/LeetCode-All-In-One/issues/253) $|28.80%|Medium| -|252|[Meeting Rooms](https://github.com/grandyang/LeetCode-All-In-One/issues/252) $|35.40%|Easy| -|251|[Flatten 2D Vector](https://github.com/grandyang/LeetCode-All-In-One/issues/251) $|28.30%|Medium| -|250|[Count Univalue Subtrees](https://github.com/grandyang/LeetCode-All-In-One/issues/250) $|32.70%|Medium| -|249|[Group Shifted Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/249) $|25.20%|Easy| -|248|[Strobogrammatic Number III](https://github.com/grandyang/LeetCode-All-In-One/issues/248) $|21.80%|Hard| -|247|[Strobogrammatic Number II](https://github.com/grandyang/LeetCode-All-In-One/issues/247) $|26.70%|Medium| -|246|[Strobogrammatic Number](https://github.com/grandyang/LeetCode-All-In-One/issues/246) $|31.60%|Easy| -|245|[Shortest Word Distance III](https://github.com/grandyang/LeetCode-All-In-One/issues/245) $|43.20%|Medium| -|244|[Shortest Word Distance II](https://github.com/grandyang/LeetCode-All-In-One/issues/244) $|33.70%|Medium| -|243|[Shortest Word Distance](https://github.com/grandyang/LeetCode-All-In-One/issues/243) $|41.80%|Easy| -|242|[Valid Anagram](https://github.com/grandyang/LeetCode-All-In-One/issues/242)|39.30%|Easy| -|241|[Different Ways to Add Parentheses](https://github.com/grandyang/LeetCode-All-In-One/issues/241)|27.10%|Medium| -|240|[Search a 2D Matrix II](https://github.com/grandyang/LeetCode-All-In-One/issues/240)|31.40%|Medium| -|239|[Sliding Window Maximum](https://github.com/grandyang/LeetCode-All-In-One/issues/239)|24.30%|Hard| -|238|[Product of Array Except Self](https://github.com/grandyang/LeetCode-All-In-One/issues/238)|42.40%|Medium| -|237|[Delete Node in a Linked List](https://github.com/grandyang/LeetCode-All-In-One/issues/237)|50.90%|Easy| -|236|[Lowest Common Ancestor of a Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/236)|28.30%|Medium| -|235|[Lowest Common Ancestor of a Binary Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/235)|38.90%|Medium| -|234|[Palindrome Linked List](https://github.com/grandyang/LeetCode-All-In-One/issues/234)|23.80%|Easy| -|233|[Number of Digit One](https://github.com/grandyang/LeetCode-All-In-One/issues/233)|16.10%|Medium| -|232|[Implement Queue using Stacks](https://github.com/grandyang/LeetCode-All-In-One/issues/232)|37.40%|Easy| -|231|[Power of Two](https://github.com/grandyang/LeetCode-All-In-One/issues/231)|31.30%|Easy| -|230|[Kth Smallest Element in a BST](https://github.com/grandyang/LeetCode-All-In-One/issues/230)|30.50%|Medium| -|229|[Majority Element II](https://github.com/grandyang/LeetCode-All-In-One/issues/229)|30.50%|Medium| -|228|[Summary Ranges](https://github.com/grandyang/LeetCode-All-In-One/issues/228)|21.10%|Easy| -|227|[Basic Calculator II](https://github.com/grandyang/LeetCode-All-In-One/issues/227)|18.00%|Medium| -|226|[Invert Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/226)|35.40%|Easy| -|225|[Implement Stack using Queues](https://github.com/grandyang/LeetCode-All-In-One/issues/225)|29.60%|Medium| -|224|[Basic Calculator](https://github.com/grandyang/LeetCode-All-In-One/issues/224)|15.80%|Medium| -|223|[Rectangle Area](https://github.com/grandyang/LeetCode-All-In-One/issues/223)|25.60%|Easy| -|222|[Count Complete Tree Nodes](https://github.com/grandyang/LeetCode-All-In-One/issues/222)|19.40%|Medium| -|221|[Maximal Square](https://github.com/grandyang/LeetCode-All-In-One/issues/221)|20.30%|Medium| -|220|[Contains Duplicate III](https://github.com/grandyang/LeetCode-All-In-One/issues/220)|15.30%|Medium| -|219|[Contains Duplicate II](https://github.com/grandyang/LeetCode-All-In-One/issues/219)|25.60%|Easy| -|218|[The Skyline Problem](https://github.com/grandyang/LeetCode-All-In-One/issues/218)|16.20%|Hard| -|217|[Contains Duplicate](https://github.com/grandyang/LeetCode-All-In-One/issues/217)|35.90%|Easy| -|216|[Combination Sum III](https://github.com/grandyang/LeetCode-All-In-One/issues/216)|27.70%|Medium| -|215|[Kth Largest Element in an Array](https://github.com/grandyang/LeetCode-All-In-One/issues/215)|27.30%|Medium| -|214|[Shortest Palindrome](https://github.com/grandyang/LeetCode-All-In-One/issues/214)|16.80%|Hard| -|213|[House Robber II](https://github.com/grandyang/LeetCode-All-In-One/issues/213)|26.30%|Medium| -|212|[Word Search II](https://github.com/grandyang/LeetCode-All-In-One/issues/212)|15.00%|Hard| -|211|[Add and Search Word - Data structure design](https://github.com/grandyang/LeetCode-All-In-One/issues/211)|20.70%|Medium| -|210|[Course Schedule II](https://github.com/grandyang/LeetCode-All-In-One/issues/210)|19.30%|Medium| -|209|[Minimum Size Subarray Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/209)|22.90%|Medium| -|208|[Implement Trie (Prefix Tree)](https://github.com/grandyang/LeetCode-All-In-One/issues/208)|24.80%|Medium| -|207|[Course Schedule](https://github.com/grandyang/LeetCode-All-In-One/issues/207)|21.70%|Medium| -|206|[Reverse Linked List](https://github.com/grandyang/LeetCode-All-In-One/issues/206)|31.50%|Easy| -|205|[Isomorphic Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/205)|24.20%|Easy| -|204|[Count Primes](https://github.com/grandyang/LeetCode-All-In-One/issues/204)|19.00%|Easy| -|203|[Remove Linked List Elements](https://github.com/grandyang/LeetCode-All-In-One/issues/203)|25.80%|Easy| -|202|[Happy Number](https://github.com/grandyang/LeetCode-All-In-One/issues/202)|31.40%|Easy| -|201|[Bitwise AND of Numbers Range](https://github.com/grandyang/LeetCode-All-In-One/issues/201)|23.30%|Medium| -|200|[Number of Islands](https://github.com/grandyang/LeetCode-All-In-One/issues/200)|21.90%|Medium| -|199|[Binary Tree Right Side View](https://github.com/grandyang/LeetCode-All-In-One/issues/199)|27.10%|Medium| -|198|[House Robber](https://github.com/grandyang/LeetCode-All-In-One/issues/198)|28.80%|Easy| -|197|[Rising Temperature](https://github.com/grandyang/LeetCode-All-In-One/issues/197) *|25.90%|Easy| -|196|[Delete Duplicate Emails](https://github.com/grandyang/LeetCode-All-In-One/issues/196) *|19.00%|Easy| -|195|[Tenth Line](https://github.com/grandyang/LeetCode-All-In-One/issues/195) #|32.20%|Easy| -|194|[Transpose File](https://github.com/grandyang/LeetCode-All-In-One/issues/194) #|21.40%|Medium| -|193|[Valid Phone Numbers](https://github.com/grandyang/LeetCode-All-In-One/issues/193) #|24.40%|Easy| -|192|[Word Frequency](https://github.com/grandyang/LeetCode-All-In-One/issues/192) #|26.10%|Medium| -|191|[Number of 1 Bits](https://github.com/grandyang/LeetCode-All-In-One/issues/191)|37.30%|Easy| -|190|[Reverse Bits](https://github.com/grandyang/LeetCode-All-In-One/issues/190)|28.40%|Easy| -|189|[Rotate Array](https://github.com/grandyang/LeetCode-All-In-One/issues/189)|17.80%|Easy| -|188|[Best Time to Buy and Sell Stock IV](https://github.com/grandyang/LeetCode-All-In-One/issues/188)|17.30%|Hard| -|187|[Repeated DNA Sequences](https://github.com/grandyang/LeetCode-All-In-One/issues/187)|19.50%|Medium| -|186|[Reverse Words in a String II](https://github.com/grandyang/LeetCode-All-In-One/issues/186) $|31.10%|Medium| -|185|[Department Top Three Salaries](https://github.com/grandyang/LeetCode-All-In-One/issues/185) *|15.20%|Hard| -|184|[Department Highest Salary](https://github.com/grandyang/LeetCode-All-In-One/issues/184) *|19.00%|Medium| -|183|[Customers Who Never Order](https://github.com/grandyang/LeetCode-All-In-One/issues/183) *|33.70%|Easy| -|182|[Duplicate Emails](https://github.com/grandyang/LeetCode-All-In-One/issues/182) *|38.10%|Easy| -|181|[Employees Earning More Than Their Managers](https://github.com/grandyang/LeetCode-All-In-One/issues/181) *|41.00%|Easy| -|180|[Consecutive Numbers](https://github.com/grandyang/LeetCode-All-In-One/issues/180) *|26.60%|Medium| -|179|[Largest Number](https://github.com/grandyang/LeetCode-All-In-One/issues/179)|15.70%|Medium| -|178|[Rank Scores](https://github.com/grandyang/LeetCode-All-In-One/issues/178) *|24.60%|Medium| -|177|[Nth Highest Salary](https://github.com/grandyang/LeetCode-All-In-One/issues/177) *|16.30%|Medium| -|176|[Second Highest Salary](https://github.com/grandyang/LeetCode-All-In-One/issues/176) *|25.00%|Easy| -|175|[Combine Two Tables](https://github.com/grandyang/LeetCode-All-In-One/issues/175) *|34.40%|Easy| -|174|[Dungeon Game](https://github.com/grandyang/LeetCode-All-In-One/issues/174)|17.70%|Hard| -|173|[Binary Search Tree Iterator](https://github.com/grandyang/LeetCode-All-In-One/issues/173)|29.30%|Medium| -|172|[Factorial Trailing Zeroes](https://github.com/grandyang/LeetCode-All-In-One/issues/172)|28.40%|Easy| -|171|[Excel Sheet Column Number](https://github.com/grandyang/LeetCode-All-In-One/issues/171)|36.50%|Easy| -|170|[Two Sum III - Data structure design](https://github.com/grandyang/LeetCode-All-In-One/issues/170) $|24.70%|Easy| -|169|[Majority Element](https://github.com/grandyang/LeetCode-All-In-One/issues/169)|35.00%|Easy| -|168|[Excel Sheet Column Title](https://github.com/grandyang/LeetCode-All-In-One/issues/168)|18.10%|Easy| -|167|[Two Sum II - Input array is sorted](https://github.com/grandyang/LeetCode-All-In-One/issues/167) $|43.30%|Medium| -|166|[Fraction to Recurring Decimal](https://github.com/grandyang/LeetCode-All-In-One/issues/166)|12.70%|Medium| -|165|[Compare Version Numbers](https://github.com/grandyang/LeetCode-All-In-One/issues/165)|15.20%|Easy| -|164|[Maximum Gap](https://github.com/grandyang/LeetCode-All-In-One/issues/164)|24.40%|Hard| -|163|[Missing Ranges](https://github.com/grandyang/LeetCode-All-In-One/issues/163) $|24.10%|Medium| -|162|[Find Peak Element](https://github.com/grandyang/LeetCode-All-In-One/issues/162)|31.50%|Medium| -|161|[One Edit Distance](https://github.com/grandyang/LeetCode-All-In-One/issues/161) $|24.00%|Medium| -|160|[Intersection of Two Linked Lists](https://github.com/grandyang/LeetCode-All-In-One/issues/160)|28.70%|Easy| -|159|[Longest Substring with At Most Two Distinct Characters](https://github.com/grandyang/LeetCode-All-In-One/issues/159) $|30.20%|Hard| -|158|[Read N Characters Given Read4 II - Call multiple times](https://github.com/grandyang/LeetCode-All-In-One/issues/158) $|22.30%|Hard| -|157|[Read N Characters Given Read4](https://github.com/grandyang/LeetCode-All-In-One/issues/157) $|29.80%|Easy| -|156|[Binary Tree Upside Down](https://github.com/grandyang/LeetCode-All-In-One/issues/156) $|34.30%|Medium| -|155|[Min Stack](https://github.com/grandyang/LeetCode-All-In-One/issues/155)|18.50%|Easy| -|154|[Find Minimum in Rotated Sorted Array II](https://github.com/grandyang/LeetCode-All-In-One/issues/154)|31.90%|Hard| -|153|[Find Minimum in Rotated Sorted Array](https://github.com/grandyang/LeetCode-All-In-One/issues/153)|33.30%|Medium| -|152|[Maximum Product Subarray](https://github.com/grandyang/LeetCode-All-In-One/issues/152)|19.40%|Medium| -|151|[Reverse Words in a String](https://github.com/grandyang/LeetCode-All-In-One/issues/151)|15.10%|Medium| -|150|[Evaluate Reverse Polish Notation](https://github.com/grandyang/LeetCode-All-In-One/issues/150)|21.10%|Medium| -|149|[Max Points on a Line](https://github.com/grandyang/LeetCode-All-In-One/issues/149)|12.60%|Hard| -|148|[Sort List](https://github.com/grandyang/LeetCode-All-In-One/issues/148)|22.00%|Medium| -|147|[Insertion Sort List](https://github.com/grandyang/LeetCode-All-In-One/issues/147)|26.40%|Medium| -|146|[LRU Cache](https://github.com/grandyang/LeetCode-All-In-One/issues/146)|15.00%|Hard| -|145|[Binary Tree Postorder Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/145)|32.40%|Hard| -|144|[Binary Tree Preorder Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/144)|36.30%|Medium| -|143|[Reorder List](https://github.com/grandyang/LeetCode-All-In-One/issues/143)|21.00%|Medium| -|142|[Linked List Cycle II](https://github.com/grandyang/LeetCode-All-In-One/issues/142)|31.40%|Medium| -|141|[Linked List Cycle](https://github.com/grandyang/LeetCode-All-In-One/issues/141)|36.30%|Medium| -|140|[Word Break II](https://github.com/grandyang/LeetCode-All-In-One/issues/140)|17.70%|Hard| -|139|[Word Break](https://github.com/grandyang/LeetCode-All-In-One/issues/139)|23.00%|Medium| -|138|[Copy List with Random Pointer](https://github.com/grandyang/LeetCode-All-In-One/issues/138)|25.10%|Hard| -|137|[Single Number II](https://github.com/grandyang/LeetCode-All-In-One/issues/137)|35.00%|Medium| -|136|[Single Number](https://github.com/grandyang/LeetCode-All-In-One/issues/136)|45.10%|Medium| -|135|[Candy](https://github.com/grandyang/LeetCode-All-In-One/issues/135)|20.50%|Hard| -|134|[Gas Station](https://github.com/grandyang/LeetCode-All-In-One/issues/134)|25.70%|Medium| -|133|[Clone Graph](https://github.com/grandyang/LeetCode-All-In-One/issues/133)|24.00%|Medium| -|132|[Palindrome Partitioning II](https://github.com/grandyang/LeetCode-All-In-One/issues/132)|19.70%|Hard| -|131|[Palindrome Partitioning](https://github.com/grandyang/LeetCode-All-In-One/issues/131)|26.70%|Medium| -|130|[Surrounded Regions](https://github.com/grandyang/LeetCode-All-In-One/issues/130)|14.60%|Medium| -|129|[Sum Root to Leaf Numbers](https://github.com/grandyang/LeetCode-All-In-One/issues/129)|30.30%|Medium| -|128|[Longest Consecutive Sequence](https://github.com/grandyang/LeetCode-All-In-One/issues/128)|29.40%|Hard| -|127|[Word Ladder](https://github.com/grandyang/LeetCode-All-In-One/issues/127)|19.30%|Medium| -|126|[Word Ladder II](https://github.com/grandyang/LeetCode-All-In-One/issues/126)|12.90%|Hard| -|125|[Valid Palindrome](https://github.com/grandyang/LeetCode-All-In-One/issues/125)|22.00%|Easy| -|124|[Binary Tree Maximum Path Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/124)|21.50%|Hard| -|123|[Best Time to Buy and Sell Stock III](https://github.com/grandyang/LeetCode-All-In-One/issues/123)|23.90%|Hard| -|122|[Best Time to Buy and Sell Stock II](https://github.com/grandyang/LeetCode-All-In-One/issues/122)|38.30%|Medium| -|121|[Best Time to Buy and Sell Stock](https://github.com/grandyang/LeetCode-All-In-One/issues/121)|32.60%|Medium| -|120|[Triangle](https://github.com/grandyang/LeetCode-All-In-One/issues/120)|27.40%|Medium| -|119|[Pascal's Triangle II](https://github.com/grandyang/LeetCode-All-In-One/issues/119)|29.40%|Easy| -|118|[Pascal's Triangle](https://github.com/grandyang/LeetCode-All-In-One/issues/118)|30.10%|Easy| -|117|[Populating Next Right Pointers in Each Node II](https://github.com/grandyang/LeetCode-All-In-One/issues/117)|32.00%|Hard| -|116|[Populating Next Right Pointers in Each Node](https://github.com/grandyang/LeetCode-All-In-One/issues/116)|36.20%|Medium| -|115|[Distinct Subsequences](https://github.com/grandyang/LeetCode-All-In-One/issues/115)|26.30%|Hard| -|114|[Flatten Binary Tree to Linked List](https://github.com/grandyang/LeetCode-All-In-One/issues/114)|28.80%|Medium| -|113|[Path Sum II](https://github.com/grandyang/LeetCode-All-In-One/issues/113)|26.60%|Medium| -|112|[Path Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/112)|29.80%|Easy| -|111|[Minimum Depth of Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/111)|29.10%|Easy| -|110|[Balanced Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/110)|32.00%|Easy| -|109|[Convert Sorted List to Binary Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/109)|27.90%|Medium| -|108|[Convert Sorted Array to Binary Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/108)|34.00%|Medium| -|107|[Binary Tree Level Order Traversal II](https://github.com/grandyang/LeetCode-All-In-One/issues/107)|31.10%|Easy| -|106|[Construct Binary Tree from Inorder and Postorder Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/106)|26.80%|Medium| -|105|[Construct Binary Tree from Preorder and Inorder Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/105)|26.40%|Medium| -|104|[Maximum Depth of Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/104)|45.10%|Easy| -|103|[Binary Tree Zigzag Level Order Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/103)|26.40%|Medium| -|102|[Binary Tree Level Order Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/102)|29.30%|Easy| -|101|[Symmetric Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/101)|31.60%|Easy| -|100|[Same Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/100)|41.80%|Easy| -|99|[Recover Binary Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/99)|24.30%|Hard| -|98|[Validate Binary Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/98)|20.60%|Medium| -|97|[Interleaving String](https://github.com/grandyang/LeetCode-All-In-One/issues/97)|20.80%|Hard| -|96|[Unique Binary Search Trees](https://github.com/grandyang/LeetCode-All-In-One/issues/96)|36.00%|Medium| -|95|[Unique Binary Search Trees II](https://github.com/grandyang/LeetCode-All-In-One/issues/95)|28.00%|Medium| -|94|[Binary Tree Inorder Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/94)|36.20%|Medium| -|93|[Restore IP Addresses](https://github.com/grandyang/LeetCode-All-In-One/issues/93)|21.00%|Medium| -|92|[Reverse Linked List II](https://github.com/grandyang/LeetCode-All-In-One/issues/92)|26.10%|Medium| -|91|[Decode Ways](https://github.com/grandyang/LeetCode-All-In-One/issues/91)|16.40%|Medium| -|90|[Subsets II](https://github.com/grandyang/LeetCode-All-In-One/issues/90)|27.70%|Medium| -|89|[Gray Code](https://github.com/grandyang/LeetCode-All-In-One/issues/89)|32.80%|Medium| -|88|[Merge Sorted Array](https://github.com/grandyang/LeetCode-All-In-One/issues/88)|29.70%|Easy| -|87|[Scramble String](https://github.com/grandyang/LeetCode-All-In-One/issues/87)|24.20%|Hard| -|86|[Partition List](https://github.com/grandyang/LeetCode-All-In-One/issues/86)|27.50%|Medium| -|85|[Maximal Rectangle](https://github.com/grandyang/LeetCode-All-In-One/issues/85)|22.00%|Hard| -|84|[Largest Rectangle in Histogram](https://github.com/grandyang/LeetCode-All-In-One/issues/84)|22.60%|Hard| -|83|[Remove Duplicates from Sorted List](https://github.com/grandyang/LeetCode-All-In-One/issues/83)|34.50%|Easy| -|82|[Remove Duplicates from Sorted List II](https://github.com/grandyang/LeetCode-All-In-One/issues/82)|25.00%|Medium| -|81|[Search in Rotated Sorted Array II](https://github.com/grandyang/LeetCode-All-In-One/issues/81)|31.40%|Medium| -|80|[Remove Duplicates from Sorted Array II](https://github.com/grandyang/LeetCode-All-In-One/issues/80)|30.50%|Medium| -|79|[Word Search](https://github.com/grandyang/LeetCode-All-In-One/issues/79)|20.30%|Medium| -|78|[Subsets](https://github.com/grandyang/LeetCode-All-In-One/issues/78)|28.20%|Medium| -|77|[Combinations](https://github.com/grandyang/LeetCode-All-In-One/issues/77)|30.90%|Medium| -|76|[Minimum Window Substring](https://github.com/grandyang/LeetCode-All-In-One/issues/76)|18.90%|Hard| -|75|[Sort Colors](https://github.com/grandyang/LeetCode-All-In-One/issues/75)|32.60%|Medium| -|74|[Search a 2D Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/74)|31.60%|Medium| -|73|[Set Matrix Zeroes](https://github.com/grandyang/LeetCode-All-In-One/issues/73)|31.40%|Medium| -|72|[Edit Distance](https://github.com/grandyang/LeetCode-All-In-One/issues/72)|26.20%|Hard| -|71|[Simplify Path](https://github.com/grandyang/LeetCode-All-In-One/issues/71)|20.00%|Medium| -|70|[Climbing Stairs](https://github.com/grandyang/LeetCode-All-In-One/issues/70)|34.40%|Easy| -|69|[Sqrt(x)](https://github.com/grandyang/LeetCode-All-In-One/issues/69)|23.10%|Medium| -|68|[Text Justification](https://github.com/grandyang/LeetCode-All-In-One/issues/68)|14.60%|Hard| -|67|[Add Binary](https://github.com/grandyang/LeetCode-All-In-One/issues/67)|24.70%|Easy| -|66|[Plus One](https://github.com/grandyang/LeetCode-All-In-One/issues/66)|30.40%|Easy| -|65|[Valid Number](https://github.com/grandyang/LeetCode-All-In-One/issues/65)|11.40%|Hard| -|64|[Minimum Path Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/64)|32.20%|Medium| -|63|[Unique Paths II](https://github.com/grandyang/LeetCode-All-In-One/issues/63)|28.00%|Medium| -|62|[Unique Paths](https://github.com/grandyang/LeetCode-All-In-One/issues/62)|32.80%|Medium| -|61|[Rotate List](https://github.com/grandyang/LeetCode-All-In-One/issues/61)|21.70%|Medium| -|60|[Permutation Sequence](https://github.com/grandyang/LeetCode-All-In-One/issues/60)|22.80%|Medium| -|59|[Spiral Matrix II](https://github.com/grandyang/LeetCode-All-In-One/issues/59)|31.80%|Medium| -|58|[Length of Last Word](https://github.com/grandyang/LeetCode-All-In-One/issues/58)|28.00%|Easy| -|57|[Insert Interval](https://github.com/grandyang/LeetCode-All-In-One/issues/57)|21.40%|Hard| -|56|[Merge Intervals](https://github.com/grandyang/LeetCode-All-In-One/issues/56)|22.40%|Hard| -|55|[Jump Game](https://github.com/grandyang/LeetCode-All-In-One/issues/55)|27.00%|Medium| -|54|[Spiral Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/54)|20.80%|Medium| -|53|[Maximum Subarray](https://github.com/grandyang/LeetCode-All-In-One/issues/53)|34.50%|Medium| -|52|[N-Queens II](https://github.com/grandyang/LeetCode-All-In-One/issues/52)|35.80%|Hard| -|51|[N-Queens](https://github.com/grandyang/LeetCode-All-In-One/issues/51)|26.50%|Hard| -|50|"Pow(x| n)"|26.70%| -|49|[Anagrams](https://github.com/grandyang/LeetCode-All-In-One/issues/49)|24.30%|Medium| -|48|[Rotate Image](https://github.com/grandyang/LeetCode-All-In-One/issues/48)|31.90%|Medium| -|47|[Permutations II](https://github.com/grandyang/LeetCode-All-In-One/issues/47)|25.80%|Hard| -|46|[Permutations](https://github.com/grandyang/LeetCode-All-In-One/issues/46)|31.90%|Medium| -|45|[Jump Game II](https://github.com/grandyang/LeetCode-All-In-One/issues/45)|24.20%|Hard| -|44|[Wildcard Matching](https://github.com/grandyang/LeetCode-All-In-One/issues/44)|15.00%|Hard| -|43|[Multiply Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/43)|21.00%|Medium| -|42|[Trapping Rain Water](https://github.com/grandyang/LeetCode-All-In-One/issues/42)|30.00%|Hard| -|41|[First Missing Positive](https://github.com/grandyang/LeetCode-All-In-One/issues/41)|22.90%|Hard| -|40|[Combination Sum II](https://github.com/grandyang/LeetCode-All-In-One/issues/40)|25.20%|Medium| -|39|[Combination Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/39)|27.90%|Medium| -|38|[Count and Say](https://github.com/grandyang/LeetCode-All-In-One/issues/38)|25.20%|Easy| -|37|[Sudoku Solver](https://github.com/grandyang/LeetCode-All-In-One/issues/37)|21.80%|Hard| -|36|[Valid Sudoku](https://github.com/grandyang/LeetCode-All-In-One/issues/36)|27.20%|Easy| -|35|[Search Insert Position](https://github.com/grandyang/LeetCode-All-In-One/issues/35)|35.40%|Medium| -|34|[Search for a Range](https://github.com/grandyang/LeetCode-All-In-One/issues/34)|27.50%|Medium| -|33|[Search in Rotated Sorted Array](https://github.com/grandyang/LeetCode-All-In-One/issues/33)|28.80%|Hard| -|32|[Longest Valid Parentheses](https://github.com/grandyang/LeetCode-All-In-One/issues/32)|20.90%|Hard| -|31|[Next Permutation](https://github.com/grandyang/LeetCode-All-In-One/issues/31)|25.00%|Medium| -|30|[Substring with Concatenation of All Words](https://github.com/grandyang/LeetCode-All-In-One/issues/30)|19.40%|Hard| -|29|[Divide Two Integers](https://github.com/grandyang/LeetCode-All-In-One/issues/29)|15.00%|Medium| -|28|[Implement strStr()](https://github.com/grandyang/LeetCode-All-In-One/issues/28)|22.20%|Easy| -|27|[Remove Element](https://github.com/grandyang/LeetCode-All-In-One/issues/27)|32.10%|Easy| -|26|[Remove Duplicates from Sorted Array](https://github.com/grandyang/LeetCode-All-In-One/issues/26)|31.30%|Easy| -|25|[Reverse Nodes in k-Group](https://github.com/grandyang/LeetCode-All-In-One/issues/25)|25.50%|Hard| -|24|[Swap Nodes in Pairs](https://github.com/grandyang/LeetCode-All-In-One/issues/24)|32.50%|Medium| -|23|[Merge k Sorted Lists](https://github.com/grandyang/LeetCode-All-In-One/issues/23)|21.10%|Hard| -|22|[Generate Parentheses](https://github.com/grandyang/LeetCode-All-In-One/issues/22)|32.60%|Medium| -|21|[Merge Two Sorted Lists](https://github.com/grandyang/LeetCode-All-In-One/issues/21)|32.70%|Easy| -|20|[Valid Parentheses](https://github.com/grandyang/LeetCode-All-In-One/issues/20)|26.50%|Easy| -|19|[Remove Nth Node From End of List](https://github.com/grandyang/LeetCode-All-In-One/issues/19)|27.10%|Easy| -|18|[4Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/18)|21.70%|Medium| -|17|[Letter Combinations of a Phone Number](https://github.com/grandyang/LeetCode-All-In-One/issues/17)|25.80%|Medium| -|16|[3Sum Closest](https://github.com/grandyang/LeetCode-All-In-One/issues/16)|26.90%|Medium| -|15|[3Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/15)|16.90%|Medium| -|14|[Longest Common Prefix](https://github.com/grandyang/LeetCode-All-In-One/issues/14)|25.50%|Easy| -|13|[Roman to Integer](https://github.com/grandyang/LeetCode-All-In-One/issues/13)|34.00%|Easy| -|12|[Integer to Roman](https://github.com/grandyang/LeetCode-All-In-One/issues/12)|33.80%|Medium| -|11|[Container With Most Water](https://github.com/grandyang/LeetCode-All-In-One/issues/11)|32.00%|Medium| -|10|[Regular Expression Matching](https://github.com/grandyang/LeetCode-All-In-One/issues/10)|20.70%|Hard| -|9|[Palindrome Number](https://github.com/grandyang/LeetCode-All-In-One/issues/9)|28.30%|Easy| -|8|[String to Integer (atoi)](https://github.com/grandyang/LeetCode-All-In-One/issues/8)|13.00%|Easy| -|7|[Reverse Integer](https://github.com/grandyang/LeetCode-All-In-One/issues/7)|25.10%|Easy| -|6|[ZigZag Conversion](https://github.com/grandyang/LeetCode-All-In-One/issues/6)|21.80%|Easy| -|5|[Longest Palindromic Substring](https://github.com/grandyang/LeetCode-All-In-One/issues/5)|20.70%|Medium| -|4|[Median of Two Sorted Arrays](https://github.com/grandyang/LeetCode-All-In-One/issues/4)|17.40%|Hard| -|3|[Longest Substring Without Repeating Characters](https://github.com/grandyang/LeetCode-All-In-One/issues/3)|20.60%|Medium| -|2|[Add Two Numbers](https://github.com/grandyang/LeetCode-All-In-One/issues/2)|21.10%|Medium| -|1|[Two Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/1)|17.70%|Medium| +|569|[Median Employee Salary ](https://github.com/grandyang/leetcode/issues/569) $|41.60%|Hard| +|568|[Maximum Vacation Days](https://github.com/grandyang/leetcode/issues/568) $|39.90%|Hard| +|567|[Permutation in String](https://github.com/grandyang/leetcode/issues/567)|36.30%|Medium| +|566|[Reshape the Matrix](https://github.com/grandyang/leetcode/issues/566)|59.80%|Easy| +|565|[Array Nesting](https://github.com/grandyang/leetcode/issues/565)|50.00%|Medium| +|564|[Find the Closest Palindrome](https://github.com/grandyang/leetcode/issues/564)|16.60%|Hard| +|563|[Binary Tree Tilt](https://github.com/grandyang/leetcode/issues/563)|47.00%|Easy| +|562|[Longest Line of Consecutive One in Matrix](https://github.com/grandyang/leetcode/issues/562) $|38.80%|Medium| +|561|[Array Partition I](https://github.com/grandyang/leetcode/issues/561)|69.80%|Easy| +|560|[Subarray Sum Equals K](https://github.com/grandyang/leetcode/issues/560)|41.80%|Medium| +|559|[Maximum Depth of N-ary Tree](https://github.com/grandyang/leetcode/issues/559)|62.10%|Easy| +|558|[Quad Tree Intersection](https://github.com/grandyang/leetcode/issues/558)|36.40%|Easy| +|557|[Reverse Words in a String III](https://github.com/grandyang/leetcode/issues/557)|61.20%|Easy| +|556|[Next Greater Element III](https://github.com/grandyang/leetcode/issues/556)|27.70%|Medium| +|555|[Split Concatenated Strings](https://github.com/grandyang/leetcode/issues/555) $|30.00%|Medium| +|554|[Brick Wall](https://github.com/grandyang/leetcode/issues/554)|42.70%|Medium| +|553|[Optimal Division](https://github.com/grandyang/leetcode/issues/553)|55.20%|Medium| +|552|[Student Attendance Record II](https://github.com/grandyang/leetcode/issues/552)|28.50%|Hard| +|551|[Student Attendance Record I](https://github.com/grandyang/leetcode/issues/551)|43.90%|Easy| +|549|[Binary Tree Longest Consecutive Sequence II](https://github.com/grandyang/leetcode/issues/549) $|38.10%|Medium| +|548|[Split Array with Equal Sum](https://github.com/grandyang/leetcode/issues/548) $|30.80%|Medium| +|547|[Friend Circles](https://github.com/grandyang/leetcode/issues/547)|49.00%|Medium| +|546|[Remove Boxes](https://github.com/grandyang/leetcode/issues/546)|29.60%|Hard| +|545|[Boundary of Binary Tree](https://github.com/grandyang/leetcode/issues/545) $|29.10%|Medium| +|544|[Output Contest Matches](https://github.com/grandyang/leetcode/issues/544) $|73.20%|Medium| +|543|[Diameter of Binary Tree](https://github.com/grandyang/leetcode/issues/543)|42.70%|Easy| +|542|[01 Matrix](https://github.com/grandyang/leetcode/issues/542)|32.50%|Medium| +|541|[Reverse String II](https://github.com/grandyang/leetcode/issues/541)|44.40%|Easy| +|540|[Single Element in a Sorted Array](https://github.com/grandyang/leetcode/issues/540)|55.90%|Medium| +|539|[Minimum Time Difference](https://github.com/grandyang/leetcode/issues/539)|44.70%|Medium| +|538|[Convert BST to Greater Tree](https://github.com/grandyang/leetcode/issues/538)|52.70%|Medium| +|537|[Complex Number Multiplication](https://github.com/grandyang/leetcode/issues/537)|65.90%|Medium| +|536|[Construct Binary Tree from String](https://github.com/grandyang/leetcode/issues/536) $|36.30%|Medium| +|535|[Encode and Decode TinyURL](https://github.com/grandyang/leetcode/issues/535)|76.10%|Medium| +|534|Game Play Analysis III|67.10%|Medium| +|533|[Lonely Pixel II](https://github.com/grandyang/leetcode/issues/533) $|38.90%|Medium| +|532|[K-diff Pairs in an Array](https://github.com/grandyang/leetcode/issues/532)|27.20%|Easy| +|531|[Lonely Pixel I](https://github.com/grandyang/leetcode/issues/531) $|50.20%|Medium| +|530|[Minimum Absolute Difference in BST](https://github.com/grandyang/leetcode/issues/530)|48.00%|Easy| +|529|[Minesweeper](https://github.com/grandyang/leetcode/issues/529)|52.00%|Medium| +|528|[Random Pick with Weight](https://github.com/grandyang/leetcode/issues/528)|41.80%|Medium| +|527|[Word Abbreviation](https://github.com/grandyang/leetcode/issues/527) $|33.90%|Hard| +|526|[Beautiful Arrangement](https://github.com/grandyang/leetcode/issues/526)|53.50%|Medium| +|525|[Contiguous Array](https://github.com/grandyang/leetcode/issues/525)|34.40%|Medium| +|524|[Longest Word in Dictionary through Deleting](https://github.com/grandyang/leetcode/issues/524)|40.20%|Medium| +|523|[Continuous Subarray Sum](https://github.com/grandyang/leetcode/issues/523)|21.30%|Medium| +|522|[Longest Uncommon Subsequence II](https://github.com/grandyang/leetcode/issues/522)|28.10%|Medium| +|521|[Longest Uncommon Subsequence I](https://github.com/grandyang/leetcode/issues/521)|50.70%|Easy| +|520|[Detect Capital](https://github.com/grandyang/leetcode/issues/520)|54.20%|Easy| +|519|[Random Flip Matrix](https://github.com/grandyang/leetcode/issues/519)|32.20%|Medium| +|518|[Coin Change 2](https://github.com/grandyang/leetcode/issues/518)|33.20%|Medium| +|517|[Super Washing Machines](https://github.com/grandyang/leetcode/issues/517)|34.60%|Hard| +|516|[Longest Palindromic Subsequence](https://github.com/grandyang/leetcode/issues/516)|42.00%|Medium| +|515|[Find Largest Value in Each Tree Row](https://github.com/grandyang/leetcode/issues/515)|52.70%|Medium| +|514|[Freedom Trail](https://github.com/grandyang/leetcode/issues/514)|27.20%|Hard| +|513|[Find Bottom Left Tree Value](https://github.com/grandyang/leetcode/issues/513)|55.60%|Medium| +|510|[Inorder Successor in BST II](https://github.com/grandyang/leetcode/issues/510) $|56.20%|Medium| +|509|[Fibonacci Number](https://github.com/grandyang/leetcode/issues/509)|66.40%|Easy| +|508|[Most Frequent Subtree Sum](https://github.com/grandyang/leetcode/issues/508)|52.00%|Medium| +|507|[Perfect Number](https://github.com/grandyang/leetcode/issues/507)|32.70%|Easy| +|506|[Relative Ranks](https://github.com/grandyang/leetcode/issues/506)|48.50%|Easy| +|505|[The Maze II](https://github.com/grandyang/leetcode/issues/505)|34.80%|Medium| +|504|[Base 7](https://github.com/grandyang/leetcode/issues/504)|46.40%|Easy| +|503|[Next Greater Element II](https://github.com/grandyang/leetcode/issues/503)|46.20%|Medium| +|502|[IPO](https://github.com/grandyang/leetcode/issues/502)|32.40%|Hard| +|501|[Find Mode in Binary Search Tree](https://github.com/grandyang/leetcode/issues/501)|39.40%|Easy| +|500|[Keyboard Row](https://github.com/grandyang/leetcode/issues/500)|60.20%|Easy| +|499|[The Maze III](https://github.com/grandyang/leetcode/issues/499)|32.00%|Hard| +|498|[Diagonal Traverse](https://github.com/grandyang/leetcode/issues/498)|46.20%|Medium| +|497|[Random Point in Non-overlapping Rectangles](https://github.com/grandyang/leetcode/issues/497)|33.20%|Medium| +|496|[Next Greater Element I](https://github.com/grandyang/leetcode/issues/496)|58.80%|Easy| +|495|[Teemo Attacking](https://github.com/grandyang/leetcode/issues/495)|51.90%|Medium| +|494|[Target Sum](https://github.com/grandyang/leetcode/issues/494)|44.40%|Medium| +|493|[Reverse Pairs](https://github.com/grandyang/leetcode/issues/493)|17.10%|Hard| +|492|[Construct the Rectangle](https://github.com/grandyang/leetcode/issues/492)|49.70%|Easy| +|491|[Increasing Subsequences](https://github.com/grandyang/leetcode/issues/491)|39.30%|Medium| +|490|[The Maze](https://github.com/grandyang/leetcode/issues/490)|42.80%|Medium| +|489|[Robot Room Cleaner](https://github.com/grandyang/leetcode/issues/489)|57.10%|Hard| +|488|[Zuma Game](https://github.com/grandyang/leetcode/issues/488)|38.00%|Hard| +|487|[Max Consecutive Ones II](https://github.com/grandyang/leetcode/issues/487) $|42.70%|Medium| +|486|[Predict the Winner](https://github.com/grandyang/leetcode/issues/486)|43.60%|Medium| +|485|[Max Consecutive Ones](https://github.com/grandyang/leetcode/issues/485)|55.30%|Easy| +|484|[Find Permutation](https://github.com/grandyang/leetcode/issues/484) $|50.50%|Medium| +|483|[Smallest Good Base](https://github.com/grandyang/leetcode/issues/483)|30.60%|Hard| +|482|[License Key Formatting](https://github.com/grandyang/leetcode/issues/482)|41.20%|Medium| +|481|[Magical String](https://github.com/grandyang/leetcode/issues/481)|46.20%|Medium| +|480|[Sliding Window Median](https://github.com/grandyang/leetcode/issues/480)|31.00%|Hard| +|479|[Largest Palindrome Product](https://github.com/grandyang/leetcode/issues/479)|23.90%|Easy| +|478|[Generate Random Point in a Circle](https://github.com/grandyang/leetcode/issues/478)|33.80%|Medium| +|477|[Total Hamming Distance](https://github.com/grandyang/leetcode/issues/477)|44.10%|Medium| +|476|[Number Complement](https://github.com/grandyang/leetcode/issues/476)|61.20%|Easy| +|475|[Heaters](https://github.com/grandyang/leetcode/issues/475)|30.20%|Easy| +|474|[Ones and Zeroes](https://github.com/grandyang/leetcode/issues/474)|34.90%|Medium| +|473|[Matchsticks to Square](https://github.com/grandyang/leetcode/issues/473)|31.80%|Medium| +|472|[Concatenated Words](https://github.com/grandyang/leetcode/issues/472)|29.20%|Hard| +|471|[Encode String with Shortest Length](https://github.com/grandyang/leetcode/issues/471) $|43.50%|Hard| +|470|[Implement Rand10() Using Rand7()](https://github.com/grandyang/leetcode/issues/470)|43.00%|Medium| +|469|[Convex Polygon](https://github.com/grandyang/leetcode/issues/469) $|27.20%|Medium| +|468|[Validate IP Address](https://github.com/grandyang/leetcode/issues/468)|22.10%|Medium| +|467|[Unique Substrings in Wraparound String](https://github.com/grandyang/leetcode/issues/467)|29.90%|Medium| +|466|[Count The Repetitions](https://github.com/grandyang/leetcode/issues/466)|24.20%|Hard| +|465|[Optimal Account Balancing](https://github.com/grandyang/leetcode/issues/465) $|29.20%|Hard| +|464|[Can I Win](https://github.com/grandyang/leetcode/issues/464)|22.20%|Medium| +|463|[Island Perimeter](https://github.com/grandyang/leetcode/issues/463)|56.70%|Easy| +|462|[Minimum Moves to Equal Array Elements II](https://github.com/grandyang/leetcode/issues/462)|50.90%|Medium| +|461|[Hamming Distance](https://github.com/grandyang/leetcode/issues/461)|73.20%|Easy| +|460|[LFU Cache](https://github.com/grandyang/leetcode/issues/460)|18.30%|Hard| +|459|[Repeated Substring Pattern](https://github.com/grandyang/leetcode/issues/459)|39.70%|Easy| +|458|[Poor Pigs](https://github.com/grandyang/leetcode/issues/458)|40.70%|Easy| +|457|[Circular Array Loop](https://github.com/grandyang/leetcode/issues/457)|20.60%|Medium| +|456|[132 Pattern](https://github.com/grandyang/leetcode/issues/456)|28.00%|Medium| +|455|[Assign Cookies](https://github.com/grandyang/leetcode/issues/455)|48.10%|Easy| +|454|[4Sum II](https://github.com/grandyang/leetcode/issues/454)|42.80%|Medium| +|453|[Minimum Moves to Equal Array Elements](https://github.com/grandyang/leetcode/issues/453)|46.30%|Easy| +|452|[Minimum Number of Arrows to Burst Balloons](https://github.com/grandyang/leetcode/issues/452)|42.10%|Medium| +|451|[Sort Characters By Frequency](https://github.com/grandyang/leetcode/issues/451)|50.90%|Medium| +|450|[Delete Node in a BST](https://github.com/grandyang/leetcode/issues/450)|34.50%|Medium| +|449|[Serialize and Deserialize BST](https://github.com/grandyang/leetcode/issues/449)|41.20%|Medium| +|448|[Find All Numbers Disappeared in an Array](https://github.com/grandyang/leetcode/issues/448)|58.30%|Easy| +|447|[Number of Boomerangs](https://github.com/grandyang/leetcode/issues/447)|42.20%|Easy| +|446|[Arithmetic Slices II - Subsequence](https://github.com/grandyang/leetcode/issues/446)|22.30%|Hard| +|445|[Add Two Numbers II](https://github.com/grandyang/leetcode/issues/445)|45.40%|Medium| +|444|[Sequence Reconstruction](https://github.com/grandyang/leetcode/issues/444) $|20.50%|Medium| +|443|[String Compression](https://github.com/grandyang/leetcode/issues/443)|35.80%|Easy| +|442|[Find All Duplicates in an Array](https://github.com/grandyang/leetcode/issues/442)|46.40%|Medium| +|441|[Arranging Coins](https://github.com/grandyang/leetcode/issues/441)|36.20%|Easy| +|440|[K-th Smallest in Lexicographical Order](https://github.com/grandyang/leetcode/issues/440)|21.50%|Hard| +|439|[Ternary Expression Parser](https://github.com/grandyang/leetcode/issues/439) $|49.40%|Medium| +|438|[Find All Anagrams in a String](https://github.com/grandyang/leetcode/issues/438)|33.50%|Easy| +|437|[Path Sum III](https://github.com/grandyang/leetcode/issues/437)|38.60%|Easy| +|436|[Find Right Interval](https://github.com/grandyang/leetcode/issues/436)|42.30%|Medium| +|435|[Non-overlapping Intervals](https://github.com/grandyang/leetcode/issues/435)|39.80%|Medium| +|434|[Number of Segments in a String](https://github.com/grandyang/leetcode/issues/434)|38.40%|Easy| +|433|[Minimum Genetic Mutation](https://github.com/grandyang/leetcode/issues/433)|33.50%|Medium| +|432|[All O`one Data Structure](https://github.com/grandyang/leetcode/issues/432)|28.30%|Hard| +|431|[Encode N-ary Tree to Binary Tree](https://github.com/grandyang/leetcode/issues/431) $|53.70%|Hard| +|430|[Flatten a Multilevel Doubly Linked List](https://github.com/grandyang/leetcode/issues/430)|36.20%|Medium| +|429|[N-ary Tree Level Order Traversal](https://github.com/grandyang/leetcode/issues/429)|55.80%|Easy| +|428|[Serialize and Deserialize N-ary Tree](https://github.com/grandyang/leetcode/issues/428) $|48.10%|Hard| +|427|[Construct Quad Tree](https://github.com/grandyang/leetcode/issues/427)|49.20%|Easy| +|426|[Convert Binary Search Tree to Sorted Doubly Linked List](https://github.com/grandyang/leetcode/issues/426)|43.30%|Medium| +|425|[Word Squares](https://github.com/grandyang/leetcode/issues/425) $|40.10%|Hard| +|424|[Longest Repeating Character Replacement](https://github.com/grandyang/leetcode/issues/424)|38.10%|Medium| +|423|[Reconstruct Original Digits from English](https://github.com/grandyang/leetcode/issues/423)|40.80%|Medium| +|422|[Valid Word Square](https://github.com/grandyang/leetcode/issues/422) $|36.40%|Easy| +|421|[Maximum XOR of Two Numbers in an Array](https://github.com/grandyang/leetcode/issues/421)|36.40%|Medium| +|420|[Strong Password Checker](https://github.com/grandyang/leetcode/issues/420)|22.10%|Hard| +|419|[Battleships in a Board](https://github.com/grandyang/leetcode/issues/419)|59.30%|Medium| +|418|[Sentence Screen Fitting](https://github.com/grandyang/leetcode/issues/418) $|25.10%|Medium| +|417|[Pacific Atlantic Water Flow](https://github.com/grandyang/leetcode/issues/417)|31.10%|Medium| +|416|[Partition Equal Subset Sum](https://github.com/grandyang/leetcode/issues/416)|36.80%|Medium| +|415|[Add Strings](https://github.com/grandyang/leetcode/issues/415)|41.50%|Easy| +|414|[Third Maximum Number](https://github.com/grandyang/leetcode/issues/414)|26.50%|Easy| +|413|[Arithmetic Slices](https://github.com/grandyang/leetcode/issues/413)|53.50%|Medium| +|412|[Fizz Buzz](https://github.com/grandyang/leetcode/issues/412)|57.50%|Easy| +|411|[Minimum Unique Word Abbreviation](https://github.com/grandyang/leetcode/issues/411) $|25.60%|Hard| +|410|[Split Array Largest Sum](https://github.com/grandyang/leetcode/issues/410)|25.00%|Hard| +|409|[Longest Palindrome](https://github.com/grandyang/leetcode/issues/409)|44.90%|Easy| +|408|[Valid Word Abbreviation](https://github.com/grandyang/leetcode/issues/408) $|26.20%|Easy| +|407|[Trapping Rain Water II](https://github.com/grandyang/leetcode/issues/407)|33.10%|Hard| +|406|[Queue Reconstruction by Height](https://github.com/grandyang/leetcode/issues/406)|54.10%|Medium| +|405|[Convert a Number to Hexadecimal](https://github.com/grandyang/leetcode/issues/405)|41.80%|Easy| +|404|[Sum of Left Leaves](https://github.com/grandyang/leetcode/issues/404)|46.20%|Easy| +|403|[Frog Jump](https://github.com/grandyang/leetcode/issues/403)|31.70%|Hard| +|402|[Remove K Digits](https://github.com/grandyang/leetcode/issues/402)|25.90%|Medium| +|401|[Binary Watch](https://github.com/grandyang/leetcode/issues/401)|43.00%|Easy| +|400|[Nth Digit](https://github.com/grandyang/leetcode/issues/400)|30.70%|Easy| +|399|[Evaluate Division](https://github.com/grandyang/leetcode/issues/399)|34.60%|Medium| +|398|[Random Pick Index](https://github.com/grandyang/leetcode/issues/398)|30.40%|Medium| +|397|[Integer Replacement](https://github.com/grandyang/leetcode/issues/397)|25.90%|Easy| +|396|[Rotate Function](https://github.com/grandyang/leetcode/issues/396)|28.40%|Easy| +|395|[Longest Substring with At Least K Repeating Characters](https://github.com/grandyang/leetcode/issues/395)|32.50%|Medium| +|394|[Decode String](https://github.com/grandyang/leetcode/issues/394)|38.60%|Medium| +|393|[UTF-8 Validation](https://github.com/grandyang/leetcode/issues/393)|33.00%|Medium| +|392|[Is Subsequence](https://github.com/grandyang/leetcode/issues/392)|44.10%|Medium| +|391|[Perfect Rectangle](https://github.com/grandyang/leetcode/issues/391)|13.30%|Hard| +|390|[Elimination Game](https://github.com/grandyang/leetcode/issues/390)|12.50%|Medium| +|389|[Find the Difference](https://github.com/grandyang/leetcode/issues/389)|49.90%|Easy| +|388|[Longest Absolute File Path](https://github.com/grandyang/leetcode/issues/388)|28.30%|Medium| +|387|[First Unique Character in a String](https://github.com/grandyang/leetcode/issues/387)|43.10%|Easy| +|386|[Lexicographical Numbers](https://github.com/grandyang/leetcode/issues/386)|31.00%|Medium| +|385|[Mini Parser](https://github.com/grandyang/leetcode/issues/385)|26.90%|Medium| +|384|[Shuffle an Array](https://github.com/grandyang/leetcode/issues/384)|45.50%|Medium| +|383|[Ransom Note](https://github.com/grandyang/leetcode/issues/383)|44.60%|Easy| +|382|[Linked List Random Node](https://github.com/grandyang/leetcode/issues/382)|48.60%|Medium| +|381|[Insert Delete GetRandom O(1) - Duplicates allowed](https://github.com/grandyang/leetcode/issues/381)|30.90%|Hard| +|380|[Insert Delete GetRandom O(1)](https://github.com/grandyang/leetcode/issues/380)|33.80%|Medium| +|379|[Design Phone Directory](https://github.com/grandyang/leetcode/issues/379) $|25.80%|Medium| +|378|[Kth Smallest Element in a Sorted Matrix](https://github.com/grandyang/leetcode/issues/378)|40.20%|Medium| +|377|[Combination Sum IV](https://github.com/grandyang/leetcode/issues/377)|37.50%|Medium| +|376|[Wiggle Subsequence](https://github.com/grandyang/leetcode/issues/376)|35.80%|Medium| +|375|[Guess Number Higher or Lower II](https://github.com/grandyang/leetcode/issues/375)|28.30%|Medium| +|374|[Guess Number Higher or Lower](https://github.com/grandyang/leetcode/issues/374)|31.70%|Easy| +|373|[Find K Pairs with Smallest Sums](https://github.com/grandyang/leetcode/issues/373)|25.50%|Medium| +|372|[Super Pow](https://github.com/grandyang/leetcode/issues/372)|30.10%|Medium| +|371|[Sum of Two Integers](https://github.com/grandyang/leetcode/issues/371)|54.00%|Easy| +|370|[Range Addition](https://github.com/grandyang/leetcode/issues/370) $|49.90%|Medium| +|369|[Plus One Linked List](https://github.com/grandyang/leetcode/issues/369) $|50.10%|Medium| +|368|[Largest Divisible Subset](https://github.com/grandyang/leetcode/issues/368)|32.00%|Medium| +|367|[Valid Perfect Square](https://github.com/grandyang/leetcode/issues/367)|36.60%|Medium| +|366|[Find Leaves of Binary Tree](https://github.com/grandyang/leetcode/issues/366) $|53.60%|Medium| +|365|[Water and Jug Problem](https://github.com/grandyang/leetcode/issues/365)|20.10%|Medium| +|364|[Nested List Weight Sum II](https://github.com/grandyang/leetcode/issues/364) $|47.20%|Medium| +|363|[Max Sum of Rectangle No Larger Than K](https://github.com/grandyang/leetcode/issues/363)|27.00%|Hard| +|362|[Design Hit Counter](https://github.com/grandyang/leetcode/issues/362) $|48.30%|Medium| +|361|[Bomb Enemy](https://github.com/grandyang/leetcode/issues/361) $|32.60%|Medium| +|360|[Sort Transformed Array](https://github.com/grandyang/leetcode/issues/360) $|40.80%|Medium| +|359|[Logger Rate Limiter](https://github.com/grandyang/leetcode/issues/359) $|56.00%|Easy| +|358|[Rearrange String k Distance Apart](https://github.com/grandyang/leetcode/issues/358) $|26.90%|Hard| +|357|[Count Numbers with Unique Digits](https://github.com/grandyang/leetcode/issues/357)|42.50%|Medium| +|356|[Line Reflection](https://github.com/grandyang/leetcode/issues/356) $|28.70%|Medium| +|355|[Design Twitter](https://github.com/grandyang/leetcode/issues/355)|22.20%|Medium| +|354|[Russian Doll Envelopes](https://github.com/grandyang/leetcode/issues/354)|27.10%|Hard| +|353|[Design Snake Game](https://github.com/grandyang/leetcode/issues/353) $|19.80%|Medium| +|352|[Data Stream as Disjoint Intervals](https://github.com/grandyang/leetcode/issues/352)|34.40%|Hard| +|351|[Android Unlock Patterns](https://github.com/grandyang/leetcode/issues/351) $|32.00%|Medium| +|350|[Intersection of Two Arrays II](https://github.com/grandyang/leetcode/issues/350)|41.50%|Easy| +|349|[Intersection of Two Arrays](https://github.com/grandyang/leetcode/issues/349)|47.80%|Easy| +|348|[Design Tic-Tac-Toe ](https://github.com/grandyang/leetcode/issues/348) $|45.60%|Medium| +|347|[Top K Frequent Elements](https://github.com/grandyang/leetcode/issues/347)|44.50%|Medium| +|346|[Moving Average from Data Stream ](https://github.com/grandyang/leetcode/issues/346) $|69.20%|Easy| +|345|[Reverse Vowels of a String](https://github.com/grandyang/leetcode/issues/345)|35.30%|Easy| +|344|[Reverse String](https://github.com/grandyang/leetcode/issues/344)|58.90%|Easy| +|343|[Integer Break](https://github.com/grandyang/leetcode/issues/343)|43.60%|Medium| +|342|[Power of Four](https://github.com/grandyang/leetcode/issues/342)|34.10%|Easy| +|341|[Flatten Nested List Iterator](https://github.com/grandyang/leetcode/issues/341) $|18.70%|Medium| +|340|[Longest Substring with At Most K Distinct Characters](https://github.com/grandyang/leetcode/issues/340) $|36.30%|Hard| +|339|[Nested List Weight Sum](https://github.com/grandyang/leetcode/issues/339) $|54.60%|Easy| +|338|[Counting Bits](https://github.com/grandyang/leetcode/issues/338)|55.40%|Medium| +|337|[House Robber III](https://github.com/grandyang/leetcode/issues/337)|37.00%|Medium| +|336|[Palindrome Pairs](https://github.com/grandyang/leetcode/issues/336)|18.70%|Hard| +|335|[Self Crossing](https://github.com/grandyang/leetcode/issues/335)|18.00%|Medium| +|334|[Increasing Triplet Subsequence](https://github.com/grandyang/leetcode/issues/334)|33.20%|Medium| +|333|[Largest BST Subtree](https://github.com/grandyang/leetcode/issues/333) $|26.50%|Medium| +|332|[Reconstruct Itinerary](https://github.com/grandyang/leetcode/issues/332)|23.40%|Medium| +|331|[Verify Preorder Serialization of a Binary Tree](https://github.com/grandyang/leetcode/issues/331)|31.50%|Medium| +|330|[Patching Array](https://github.com/grandyang/leetcode/issues/330)|28.80%|Medium| +|329|[Longest Increasing Path in a Matrix](https://github.com/grandyang/leetcode/issues/329)|29.50%|Medium| +|328|[Odd Even Linked List](https://github.com/grandyang/leetcode/issues/328)|37.80%|Easy| +|327|[Count of Range Sum](https://github.com/grandyang/leetcode/issues/327)|24.30%|Hard| +|326|[Power of Three](https://github.com/grandyang/leetcode/issues/326)|35.30%|Easy| +|325|[Maximum Size Subarray Sum Equals k](https://github.com/grandyang/leetcode/issues/325) $|39.60%|Easy| +|324|[Wiggle Sort II](https://github.com/grandyang/leetcode/issues/324)|20.10%|Medium| +|323|[Number of Connected Components in an Undirected Graph](https://github.com/grandyang/leetcode/issues/323) $|43.30%|Medium| +|322|[Coin Change](https://github.com/grandyang/leetcode/issues/322)|24.90%|Medium| +|321|[Create Maximum Number](https://github.com/grandyang/leetcode/issues/321)|19.10%|Hard| +|320|[Generalized Abbreviation](https://github.com/grandyang/leetcode/issues/320) $|40.40%|Medium| +|319|[Bulb Switcher](https://github.com/grandyang/leetcode/issues/319)|39.20%|Medium| +|318|[Maximum Product of Word Lengths](https://github.com/grandyang/leetcode/issues/318)|38.70%|Medium| +|317|[Shortest Distance from All Buildings](https://github.com/grandyang/leetcode/issues/317) $|29.10%|Hard| +|316|[Remove Duplicate Letters](https://github.com/grandyang/leetcode/issues/316)|23.00%|Medium| +|315|[Count of Smaller Numbers After Self](https://github.com/grandyang/leetcode/issues/315)|28.20%|Hard| +|314|[Binary Tree Vertical Order Traversal](https://github.com/grandyang/leetcode/issues/314) $|30.10%|Medium| +|313|[Super Ugly Number](https://github.com/grandyang/leetcode/issues/313)|31.20%|Medium| +|312|[Burst Balloons](https://github.com/grandyang/leetcode/issues/312)|24.50%|Medium| +|311|[Sparse Matrix Multiplication](https://github.com/grandyang/leetcode/issues/311) $|40.00%|Medium| +|310|[Minimum Height Trees](https://github.com/grandyang/leetcode/issues/310)|20.20%|Medium| +|309|[Best Time to Buy and Sell Stock with Cooldown](https://github.com/grandyang/leetcode/issues/309)|32.60%|Medium| +|308|[Range Sum Query 2D - Mutable](https://github.com/grandyang/leetcode/issues/308) $|20.30%|Hard| +|307|[Range Sum Query - Mutable](https://github.com/grandyang/leetcode/issues/307)|14.50%|Medium| +|306|[Additive Number](https://github.com/grandyang/leetcode/issues/306)|23.30%|Medium| +|305|[Number of Islands II](https://github.com/grandyang/leetcode/issues/305) $|26.70%|Hard| +|304|[Range Sum Query 2D - Immutable](https://github.com/grandyang/leetcode/issues/304)|21.50%|Medium| +|303|[Range Sum Query - Immutable](https://github.com/grandyang/leetcode/issues/303)|25.70%|Easy| +|302|[Smallest Rectangle Enclosing Black Pixels](https://github.com/grandyang/leetcode/issues/302) $|36.70%|Hard| +|301|[Remove Invalid Parentheses](https://github.com/grandyang/leetcode/issues/301)|27.00%|Hard| +|300|[Longest Increasing Subsequence](https://github.com/grandyang/leetcode/issues/300)|31.50%|Medium| +|299|[Bulls and Cows](https://github.com/grandyang/leetcode/issues/299)|23.80%|Easy| +|298|[Binary Tree Longest Consecutive Sequence](https://github.com/grandyang/leetcode/issues/298) $|32.20%|Medium| +|297|[Serialize and Deserialize Binary Tree](https://github.com/grandyang/leetcode/issues/297)|23.80%|Medium| +|296|[Best Meeting Point](https://github.com/grandyang/leetcode/issues/296) $|41.40%|Hard| +|295|[Find Median from Data Stream](https://github.com/grandyang/leetcode/issues/295)|18.60%|Hard| +|294|[Flip Game II](https://github.com/grandyang/leetcode/issues/294) $|38.10%|Medium| +|293|[Flip Game](https://github.com/grandyang/leetcode/issues/293) $|47.60%|Easy| +|292|[Nim Game](https://github.com/grandyang/leetcode/issues/292)|49.50%|Easy| +|291|[Word Pattern II](https://github.com/grandyang/leetcode/issues/291) $|31.50%|Hard| +|290|[Word Pattern](https://github.com/grandyang/leetcode/issues/290)|26.50%|Easy| +|289|[Game of Life](https://github.com/grandyang/leetcode/issues/289)|32.60%|Medium| +|288|[Unique Word Abbreviation](https://github.com/grandyang/leetcode/issues/288) $|16.80%|Easy| +|287|[Find the Duplicate Number](https://github.com/grandyang/leetcode/issues/287)|32.80%|Hard| +|286|[Walls and Gates](https://github.com/grandyang/leetcode/issues/286) $|29.90%|Medium| +|285|[Inorder Successor in BST](https://github.com/grandyang/leetcode/issues/285) $|32.50%|Medium| +|284|[Peeking Iterator](https://github.com/grandyang/leetcode/issues/284)|31.00%|Medium| +|283|[Move Zeroes](https://github.com/grandyang/leetcode/issues/283)|41.40%|Easy| +|282|[Expression Add Operators](https://github.com/grandyang/leetcode/issues/282)|18.90%|Hard| +|281|[Zigzag Iterator](https://github.com/grandyang/leetcode/issues/281) $|37.20%|Medium| +|280|[Wiggle Sort](https://github.com/grandyang/leetcode/issues/280) $|43.30%|Medium| +|279|[Perfect Squares](https://github.com/grandyang/leetcode/issues/279)|28.80%|Medium| +|278|[First Bad Version](https://github.com/grandyang/leetcode/issues/278)|19.80%|Easy| +|277|[Find the Celebrity](https://github.com/grandyang/leetcode/issues/277) $|31.70%|Medium| +|276|[Paint Fence](https://github.com/grandyang/leetcode/issues/276) $|25.00%|Easy| +|275|[H-Index II](https://github.com/grandyang/leetcode/issues/275)|31.40%|Medium| +|274|[H-Index](https://github.com/grandyang/leetcode/issues/274)|25.30%|Medium| +|273|[Integer to English Words](https://github.com/grandyang/leetcode/issues/273)|15.50%|Medium| +|272|[Closest Binary Search Tree Value II](https://github.com/grandyang/leetcode/issues/272) $|26.90%|Hard| +|271|[Encode and Decode Strings](https://github.com/grandyang/leetcode/issues/271) $|25.40%|Medium| +|270|[Closest Binary Search Tree Value](https://github.com/grandyang/leetcode/issues/270) $|29.40%|Easy| +|269|[Alien Dictionary](https://github.com/grandyang/leetcode/issues/269) $|16.50%|Hard| +|268|[Missing Number](https://github.com/grandyang/leetcode/issues/268)|34.70%|Medium| +|267|[Palindrome Permutation II](https://github.com/grandyang/leetcode/issues/267) $|22.50%|Medium| +|266|[Palindrome Permutation](https://github.com/grandyang/leetcode/issues/266) $|45.80%|Easy| +|265|[Paint House II](https://github.com/grandyang/leetcode/issues/265) $|30.00%|Hard| +|264|[Ugly Number II](https://github.com/grandyang/leetcode/issues/264)|21.60%|Medium| +|263|[Ugly Number](https://github.com/grandyang/leetcode/issues/263)|32.60%|Easy| +|262|[Trips and Users](https://github.com/grandyang/leetcode/issues/262) *|16.10%|Hard| +|261|[Graph Valid Tree](https://github.com/grandyang/leetcode/issues/261) $|25.40%|Medium| +|260|[Single Number III](https://github.com/grandyang/leetcode/issues/260)|37.60%|Medium| +|259|[3Sum Smaller](https://github.com/grandyang/leetcode/issues/259) $|34.20%|Medium| +|258|[Add Digits](https://github.com/grandyang/leetcode/issues/258)|46.50%|Easy| +|257|[Binary Tree Paths](https://github.com/grandyang/leetcode/issues/257)|21.90%|Easy| +|256|[Paint House](https://github.com/grandyang/leetcode/issues/256) $|38.40%|Medium| +|255|[Verify Preorder Sequence in Binary Search Tree](https://github.com/grandyang/leetcode/issues/255) $|32.30%|Medium| +|254|[Factor Combinations](https://github.com/grandyang/leetcode/issues/254) $|29.00%|Medium| +|253|[Meeting Rooms II](https://github.com/grandyang/leetcode/issues/253) $|28.80%|Medium| +|252|[Meeting Rooms](https://github.com/grandyang/leetcode/issues/252) $|35.40%|Easy| +|251|[Flatten 2D Vector](https://github.com/grandyang/leetcode/issues/251) $|28.30%|Medium| +|250|[Count Univalue Subtrees](https://github.com/grandyang/leetcode/issues/250) $|32.70%|Medium| +|249|[Group Shifted Strings](https://github.com/grandyang/leetcode/issues/249) $|25.20%|Easy| +|248|[Strobogrammatic Number III](https://github.com/grandyang/leetcode/issues/248) $|21.80%|Hard| +|247|[Strobogrammatic Number II](https://github.com/grandyang/leetcode/issues/247) $|26.70%|Medium| +|246|[Strobogrammatic Number](https://github.com/grandyang/leetcode/issues/246) $|31.60%|Easy| +|245|[Shortest Word Distance III](https://github.com/grandyang/leetcode/issues/245) $|43.20%|Medium| +|244|[Shortest Word Distance II](https://github.com/grandyang/leetcode/issues/244) $|33.70%|Medium| +|243|[Shortest Word Distance](https://github.com/grandyang/leetcode/issues/243) $|41.80%|Easy| +|242|[Valid Anagram](https://github.com/grandyang/leetcode/issues/242)|39.30%|Easy| +|241|[Different Ways to Add Parentheses](https://github.com/grandyang/leetcode/issues/241)|27.10%|Medium| +|240|[Search a 2D Matrix II](https://github.com/grandyang/leetcode/issues/240)|31.40%|Medium| +|239|[Sliding Window Maximum](https://github.com/grandyang/leetcode/issues/239)|24.30%|Hard| +|238|[Product of Array Except Self](https://github.com/grandyang/leetcode/issues/238)|42.40%|Medium| +|237|[Delete Node in a Linked List](https://github.com/grandyang/leetcode/issues/237)|50.90%|Easy| +|236|[Lowest Common Ancestor of a Binary Tree](https://github.com/grandyang/leetcode/issues/236)|28.30%|Medium| +|235|[Lowest Common Ancestor of a Binary Search Tree](https://github.com/grandyang/leetcode/issues/235)|38.90%|Medium| +|234|[Palindrome Linked List](https://github.com/grandyang/leetcode/issues/234)|23.80%|Easy| +|233|[Number of Digit One](https://github.com/grandyang/leetcode/issues/233)|16.10%|Medium| +|232|[Implement Queue using Stacks](https://github.com/grandyang/leetcode/issues/232)|37.40%|Easy| +|231|[Power of Two](https://github.com/grandyang/leetcode/issues/231)|31.30%|Easy| +|230|[Kth Smallest Element in a BST](https://github.com/grandyang/leetcode/issues/230)|30.50%|Medium| +|229|[Majority Element II](https://github.com/grandyang/leetcode/issues/229)|30.50%|Medium| +|228|[Summary Ranges](https://github.com/grandyang/leetcode/issues/228)|21.10%|Easy| +|227|[Basic Calculator II](https://github.com/grandyang/leetcode/issues/227)|18.00%|Medium| +|226|[Invert Binary Tree](https://github.com/grandyang/leetcode/issues/226)|35.40%|Easy| +|225|[Implement Stack using Queues](https://github.com/grandyang/leetcode/issues/225)|29.60%|Medium| +|224|[Basic Calculator](https://github.com/grandyang/leetcode/issues/224)|15.80%|Medium| +|223|[Rectangle Area](https://github.com/grandyang/leetcode/issues/223)|25.60%|Easy| +|222|[Count Complete Tree Nodes](https://github.com/grandyang/leetcode/issues/222)|19.40%|Medium| +|221|[Maximal Square](https://github.com/grandyang/leetcode/issues/221)|20.30%|Medium| +|220|[Contains Duplicate III](https://github.com/grandyang/leetcode/issues/220)|15.30%|Medium| +|219|[Contains Duplicate II](https://github.com/grandyang/leetcode/issues/219)|25.60%|Easy| +|218|[The Skyline Problem](https://github.com/grandyang/leetcode/issues/218)|16.20%|Hard| +|217|[Contains Duplicate](https://github.com/grandyang/leetcode/issues/217)|35.90%|Easy| +|216|[Combination Sum III](https://github.com/grandyang/leetcode/issues/216)|27.70%|Medium| +|215|[Kth Largest Element in an Array](https://github.com/grandyang/leetcode/issues/215)|27.30%|Medium| +|214|[Shortest Palindrome](https://github.com/grandyang/leetcode/issues/214)|16.80%|Hard| +|213|[House Robber II](https://github.com/grandyang/leetcode/issues/213)|26.30%|Medium| +|212|[Word Search II](https://github.com/grandyang/leetcode/issues/212)|15.00%|Hard| +|211|[Add and Search Word - Data structure design](https://github.com/grandyang/leetcode/issues/211)|20.70%|Medium| +|210|[Course Schedule II](https://github.com/grandyang/leetcode/issues/210)|19.30%|Medium| +|209|[Minimum Size Subarray Sum](https://github.com/grandyang/leetcode/issues/209)|22.90%|Medium| +|208|[Implement Trie (Prefix Tree)](https://github.com/grandyang/leetcode/issues/208)|24.80%|Medium| +|207|[Course Schedule](https://github.com/grandyang/leetcode/issues/207)|21.70%|Medium| +|206|[Reverse Linked List](https://github.com/grandyang/leetcode/issues/206)|31.50%|Easy| +|205|[Isomorphic Strings](https://github.com/grandyang/leetcode/issues/205)|24.20%|Easy| +|204|[Count Primes](https://github.com/grandyang/leetcode/issues/204)|19.00%|Easy| +|203|[Remove Linked List Elements](https://github.com/grandyang/leetcode/issues/203)|25.80%|Easy| +|202|[Happy Number](https://github.com/grandyang/leetcode/issues/202)|31.40%|Easy| +|201|[Bitwise AND of Numbers Range](https://github.com/grandyang/leetcode/issues/201)|23.30%|Medium| +|200|[Number of Islands](https://github.com/grandyang/leetcode/issues/200)|21.90%|Medium| +|199|[Binary Tree Right Side View](https://github.com/grandyang/leetcode/issues/199)|27.10%|Medium| +|198|[House Robber](https://github.com/grandyang/leetcode/issues/198)|28.80%|Easy| +|197|[Rising Temperature](https://github.com/grandyang/leetcode/issues/197) *|25.90%|Easy| +|196|[Delete Duplicate Emails](https://github.com/grandyang/leetcode/issues/196) *|19.00%|Easy| +|195|[Tenth Line](https://github.com/grandyang/leetcode/issues/195) #|32.20%|Easy| +|194|[Transpose File](https://github.com/grandyang/leetcode/issues/194) #|21.40%|Medium| +|193|[Valid Phone Numbers](https://github.com/grandyang/leetcode/issues/193) #|24.40%|Easy| +|192|[Word Frequency](https://github.com/grandyang/leetcode/issues/192) #|26.10%|Medium| +|191|[Number of 1 Bits](https://github.com/grandyang/leetcode/issues/191)|37.30%|Easy| +|190|[Reverse Bits](https://github.com/grandyang/leetcode/issues/190)|28.40%|Easy| +|189|[Rotate Array](https://github.com/grandyang/leetcode/issues/189)|17.80%|Easy| +|188|[Best Time to Buy and Sell Stock IV](https://github.com/grandyang/leetcode/issues/188)|17.30%|Hard| +|187|[Repeated DNA Sequences](https://github.com/grandyang/leetcode/issues/187)|19.50%|Medium| +|186|[Reverse Words in a String II](https://github.com/grandyang/leetcode/issues/186) $|31.10%|Medium| +|185|[Department Top Three Salaries](https://github.com/grandyang/leetcode/issues/185) *|15.20%|Hard| +|184|[Department Highest Salary](https://github.com/grandyang/leetcode/issues/184) *|19.00%|Medium| +|183|[Customers Who Never Order](https://github.com/grandyang/leetcode/issues/183) *|33.70%|Easy| +|182|[Duplicate Emails](https://github.com/grandyang/leetcode/issues/182) *|38.10%|Easy| +|181|[Employees Earning More Than Their Managers](https://github.com/grandyang/leetcode/issues/181) *|41.00%|Easy| +|180|[Consecutive Numbers](https://github.com/grandyang/leetcode/issues/180) *|26.60%|Medium| +|179|[Largest Number](https://github.com/grandyang/leetcode/issues/179)|15.70%|Medium| +|178|[Rank Scores](https://github.com/grandyang/leetcode/issues/178) *|24.60%|Medium| +|177|[Nth Highest Salary](https://github.com/grandyang/leetcode/issues/177) *|16.30%|Medium| +|176|[Second Highest Salary](https://github.com/grandyang/leetcode/issues/176) *|25.00%|Easy| +|175|[Combine Two Tables](https://github.com/grandyang/leetcode/issues/175) *|34.40%|Easy| +|174|[Dungeon Game](https://github.com/grandyang/leetcode/issues/174)|17.70%|Hard| +|173|[Binary Search Tree Iterator](https://github.com/grandyang/leetcode/issues/173)|29.30%|Medium| +|172|[Factorial Trailing Zeroes](https://github.com/grandyang/leetcode/issues/172)|28.40%|Easy| +|171|[Excel Sheet Column Number](https://github.com/grandyang/leetcode/issues/171)|36.50%|Easy| +|170|[Two Sum III - Data structure design](https://github.com/grandyang/leetcode/issues/170) $|24.70%|Easy| +|169|[Majority Element](https://github.com/grandyang/leetcode/issues/169)|35.00%|Easy| +|168|[Excel Sheet Column Title](https://github.com/grandyang/leetcode/issues/168)|18.10%|Easy| +|167|[Two Sum II - Input array is sorted](https://github.com/grandyang/leetcode/issues/167) $|43.30%|Medium| +|166|[Fraction to Recurring Decimal](https://github.com/grandyang/leetcode/issues/166)|12.70%|Medium| +|165|[Compare Version Numbers](https://github.com/grandyang/leetcode/issues/165)|15.20%|Easy| +|164|[Maximum Gap](https://github.com/grandyang/leetcode/issues/164)|24.40%|Hard| +|163|[Missing Ranges](https://github.com/grandyang/leetcode/issues/163) $|24.10%|Medium| +|162|[Find Peak Element](https://github.com/grandyang/leetcode/issues/162)|31.50%|Medium| +|161|[One Edit Distance](https://github.com/grandyang/leetcode/issues/161) $|24.00%|Medium| +|160|[Intersection of Two Linked Lists](https://github.com/grandyang/leetcode/issues/160)|28.70%|Easy| +|159|[Longest Substring with At Most Two Distinct Characters](https://github.com/grandyang/leetcode/issues/159) $|30.20%|Hard| +|158|[Read N Characters Given Read4 II - Call multiple times](https://github.com/grandyang/leetcode/issues/158) $|22.30%|Hard| +|157|[Read N Characters Given Read4](https://github.com/grandyang/leetcode/issues/157) $|29.80%|Easy| +|156|[Binary Tree Upside Down](https://github.com/grandyang/leetcode/issues/156) $|34.30%|Medium| +|155|[Min Stack](https://github.com/grandyang/leetcode/issues/155)|18.50%|Easy| +|154|[Find Minimum in Rotated Sorted Array II](https://github.com/grandyang/leetcode/issues/154)|31.90%|Hard| +|153|[Find Minimum in Rotated Sorted Array](https://github.com/grandyang/leetcode/issues/153)|33.30%|Medium| +|152|[Maximum Product Subarray](https://github.com/grandyang/leetcode/issues/152)|19.40%|Medium| +|151|[Reverse Words in a String](https://github.com/grandyang/leetcode/issues/151)|15.10%|Medium| +|150|[Evaluate Reverse Polish Notation](https://github.com/grandyang/leetcode/issues/150)|21.10%|Medium| +|149|[Max Points on a Line](https://github.com/grandyang/leetcode/issues/149)|12.60%|Hard| +|148|[Sort List](https://github.com/grandyang/leetcode/issues/148)|22.00%|Medium| +|147|[Insertion Sort List](https://github.com/grandyang/leetcode/issues/147)|26.40%|Medium| +|146|[LRU Cache](https://github.com/grandyang/leetcode/issues/146)|15.00%|Hard| +|145|[Binary Tree Postorder Traversal](https://github.com/grandyang/leetcode/issues/145)|32.40%|Hard| +|144|[Binary Tree Preorder Traversal](https://github.com/grandyang/leetcode/issues/144)|36.30%|Medium| +|143|[Reorder List](https://github.com/grandyang/leetcode/issues/143)|21.00%|Medium| +|142|[Linked List Cycle II](https://github.com/grandyang/leetcode/issues/142)|31.40%|Medium| +|141|[Linked List Cycle](https://github.com/grandyang/leetcode/issues/141)|36.30%|Medium| +|140|[Word Break II](https://github.com/grandyang/leetcode/issues/140)|17.70%|Hard| +|139|[Word Break](https://github.com/grandyang/leetcode/issues/139)|23.00%|Medium| +|138|[Copy List with Random Pointer](https://github.com/grandyang/leetcode/issues/138)|25.10%|Hard| +|137|[Single Number II](https://github.com/grandyang/leetcode/issues/137)|35.00%|Medium| +|136|[Single Number](https://github.com/grandyang/leetcode/issues/136)|45.10%|Medium| +|135|[Candy](https://github.com/grandyang/leetcode/issues/135)|20.50%|Hard| +|134|[Gas Station](https://github.com/grandyang/leetcode/issues/134)|25.70%|Medium| +|133|[Clone Graph](https://github.com/grandyang/leetcode/issues/133)|24.00%|Medium| +|132|[Palindrome Partitioning II](https://github.com/grandyang/leetcode/issues/132)|19.70%|Hard| +|131|[Palindrome Partitioning](https://github.com/grandyang/leetcode/issues/131)|26.70%|Medium| +|130|[Surrounded Regions](https://github.com/grandyang/leetcode/issues/130)|14.60%|Medium| +|129|[Sum Root to Leaf Numbers](https://github.com/grandyang/leetcode/issues/129)|30.30%|Medium| +|128|[Longest Consecutive Sequence](https://github.com/grandyang/leetcode/issues/128)|29.40%|Hard| +|127|[Word Ladder](https://github.com/grandyang/leetcode/issues/127)|19.30%|Medium| +|126|[Word Ladder II](https://github.com/grandyang/leetcode/issues/126)|12.90%|Hard| +|125|[Valid Palindrome](https://github.com/grandyang/leetcode/issues/125)|22.00%|Easy| +|124|[Binary Tree Maximum Path Sum](https://github.com/grandyang/leetcode/issues/124)|21.50%|Hard| +|123|[Best Time to Buy and Sell Stock III](https://github.com/grandyang/leetcode/issues/123)|23.90%|Hard| +|122|[Best Time to Buy and Sell Stock II](https://github.com/grandyang/leetcode/issues/122)|38.30%|Medium| +|121|[Best Time to Buy and Sell Stock](https://github.com/grandyang/leetcode/issues/121)|32.60%|Medium| +|120|[Triangle](https://github.com/grandyang/leetcode/issues/120)|27.40%|Medium| +|119|[Pascal's Triangle II](https://github.com/grandyang/leetcode/issues/119)|29.40%|Easy| +|118|[Pascal's Triangle](https://github.com/grandyang/leetcode/issues/118)|30.10%|Easy| +|117|[Populating Next Right Pointers in Each Node II](https://github.com/grandyang/leetcode/issues/117)|32.00%|Hard| +|116|[Populating Next Right Pointers in Each Node](https://github.com/grandyang/leetcode/issues/116)|36.20%|Medium| +|115|[Distinct Subsequences](https://github.com/grandyang/leetcode/issues/115)|26.30%|Hard| +|114|[Flatten Binary Tree to Linked List](https://github.com/grandyang/leetcode/issues/114)|28.80%|Medium| +|113|[Path Sum II](https://github.com/grandyang/leetcode/issues/113)|26.60%|Medium| +|112|[Path Sum](https://github.com/grandyang/leetcode/issues/112)|29.80%|Easy| +|111|[Minimum Depth of Binary Tree](https://github.com/grandyang/leetcode/issues/111)|29.10%|Easy| +|110|[Balanced Binary Tree](https://github.com/grandyang/leetcode/issues/110)|32.00%|Easy| +|109|[Convert Sorted List to Binary Search Tree](https://github.com/grandyang/leetcode/issues/109)|27.90%|Medium| +|108|[Convert Sorted Array to Binary Search Tree](https://github.com/grandyang/leetcode/issues/108)|34.00%|Medium| +|107|[Binary Tree Level Order Traversal II](https://github.com/grandyang/leetcode/issues/107)|31.10%|Easy| +|106|[Construct Binary Tree from Inorder and Postorder Traversal](https://github.com/grandyang/leetcode/issues/106)|26.80%|Medium| +|105|[Construct Binary Tree from Preorder and Inorder Traversal](https://github.com/grandyang/leetcode/issues/105)|26.40%|Medium| +|104|[Maximum Depth of Binary Tree](https://github.com/grandyang/leetcode/issues/104)|45.10%|Easy| +|103|[Binary Tree Zigzag Level Order Traversal](https://github.com/grandyang/leetcode/issues/103)|26.40%|Medium| +|102|[Binary Tree Level Order Traversal](https://github.com/grandyang/leetcode/issues/102)|29.30%|Easy| +|101|[Symmetric Tree](https://github.com/grandyang/leetcode/issues/101)|31.60%|Easy| +|100|[Same Tree](https://github.com/grandyang/leetcode/issues/100)|41.80%|Easy| +|99|[Recover Binary Search Tree](https://github.com/grandyang/leetcode/issues/99)|24.30%|Hard| +|98|[Validate Binary Search Tree](https://github.com/grandyang/leetcode/issues/98)|20.60%|Medium| +|97|[Interleaving String](https://github.com/grandyang/leetcode/issues/97)|20.80%|Hard| +|96|[Unique Binary Search Trees](https://github.com/grandyang/leetcode/issues/96)|36.00%|Medium| +|95|[Unique Binary Search Trees II](https://github.com/grandyang/leetcode/issues/95)|28.00%|Medium| +|94|[Binary Tree Inorder Traversal](https://github.com/grandyang/leetcode/issues/94)|36.20%|Medium| +|93|[Restore IP Addresses](https://github.com/grandyang/leetcode/issues/93)|21.00%|Medium| +|92|[Reverse Linked List II](https://github.com/grandyang/leetcode/issues/92)|26.10%|Medium| +|91|[Decode Ways](https://github.com/grandyang/leetcode/issues/91)|16.40%|Medium| +|90|[Subsets II](https://github.com/grandyang/leetcode/issues/90)|27.70%|Medium| +|89|[Gray Code](https://github.com/grandyang/leetcode/issues/89)|32.80%|Medium| +|88|[Merge Sorted Array](https://github.com/grandyang/leetcode/issues/88)|29.70%|Easy| +|87|[Scramble String](https://github.com/grandyang/leetcode/issues/87)|24.20%|Hard| +|86|[Partition List](https://github.com/grandyang/leetcode/issues/86)|27.50%|Medium| +|85|[Maximal Rectangle](https://github.com/grandyang/leetcode/issues/85)|22.00%|Hard| +|84|[Largest Rectangle in Histogram](https://github.com/grandyang/leetcode/issues/84)|22.60%|Hard| +|83|[Remove Duplicates from Sorted List](https://github.com/grandyang/leetcode/issues/83)|34.50%|Easy| +|82|[Remove Duplicates from Sorted List II](https://github.com/grandyang/leetcode/issues/82)|25.00%|Medium| +|81|[Search in Rotated Sorted Array II](https://github.com/grandyang/leetcode/issues/81)|31.40%|Medium| +|80|[Remove Duplicates from Sorted Array II](https://github.com/grandyang/leetcode/issues/80)|30.50%|Medium| +|79|[Word Search](https://github.com/grandyang/leetcode/issues/79)|20.30%|Medium| +|78|[Subsets](https://github.com/grandyang/leetcode/issues/78)|28.20%|Medium| +|77|[Combinations](https://github.com/grandyang/leetcode/issues/77)|30.90%|Medium| +|76|[Minimum Window Substring](https://github.com/grandyang/leetcode/issues/76)|18.90%|Hard| +|75|[Sort Colors](https://github.com/grandyang/leetcode/issues/75)|32.60%|Medium| +|74|[Search a 2D Matrix](https://github.com/grandyang/leetcode/issues/74)|31.60%|Medium| +|73|[Set Matrix Zeroes](https://github.com/grandyang/leetcode/issues/73)|31.40%|Medium| +|72|[Edit Distance](https://github.com/grandyang/leetcode/issues/72)|26.20%|Hard| +|71|[Simplify Path](https://github.com/grandyang/leetcode/issues/71)|20.00%|Medium| +|70|[Climbing Stairs](https://github.com/grandyang/leetcode/issues/70)|34.40%|Easy| +|69|[Sqrt(x)](https://github.com/grandyang/leetcode/issues/69)|23.10%|Medium| +|68|[Text Justification](https://github.com/grandyang/leetcode/issues/68)|14.60%|Hard| +|67|[Add Binary](https://github.com/grandyang/leetcode/issues/67)|24.70%|Easy| +|66|[Plus One](https://github.com/grandyang/leetcode/issues/66)|30.40%|Easy| +|65|[Valid Number](https://github.com/grandyang/leetcode/issues/65)|11.40%|Hard| +|64|[Minimum Path Sum](https://github.com/grandyang/leetcode/issues/64)|32.20%|Medium| +|63|[Unique Paths II](https://github.com/grandyang/leetcode/issues/63)|28.00%|Medium| +|62|[Unique Paths](https://github.com/grandyang/leetcode/issues/62)|32.80%|Medium| +|61|[Rotate List](https://github.com/grandyang/leetcode/issues/61)|21.70%|Medium| +|60|[Permutation Sequence](https://github.com/grandyang/leetcode/issues/60)|22.80%|Medium| +|59|[Spiral Matrix II](https://github.com/grandyang/leetcode/issues/59)|31.80%|Medium| +|58|[Length of Last Word](https://github.com/grandyang/leetcode/issues/58)|28.00%|Easy| +|57|[Insert Interval](https://github.com/grandyang/leetcode/issues/57)|21.40%|Hard| +|56|[Merge Intervals](https://github.com/grandyang/leetcode/issues/56)|22.40%|Hard| +|55|[Jump Game](https://github.com/grandyang/leetcode/issues/55)|27.00%|Medium| +|54|[Spiral Matrix](https://github.com/grandyang/leetcode/issues/54)|20.80%|Medium| +|53|[Maximum Subarray](https://github.com/grandyang/leetcode/issues/53)|34.50%|Medium| +|52|[N-Queens II](https://github.com/grandyang/leetcode/issues/52)|35.80%|Hard| +|51|[N-Queens](https://github.com/grandyang/leetcode/issues/51)|26.50%|Hard| +|50|[Pow(x, n)](https://github.com/grandyang/leetcode/issues/50)|26.70%| +|49|[Anagrams](https://github.com/grandyang/leetcode/issues/49)|24.30%|Medium| +|48|[Rotate Image](https://github.com/grandyang/leetcode/issues/48)|31.90%|Medium| +|47|[Permutations II](https://github.com/grandyang/leetcode/issues/47)|25.80%|Hard| +|46|[Permutations](https://github.com/grandyang/leetcode/issues/46)|31.90%|Medium| +|45|[Jump Game II](https://github.com/grandyang/leetcode/issues/45)|24.20%|Hard| +|44|[Wildcard Matching](https://github.com/grandyang/leetcode/issues/44)|15.00%|Hard| +|43|[Multiply Strings](https://github.com/grandyang/leetcode/issues/43)|21.00%|Medium| +|42|[Trapping Rain Water](https://github.com/grandyang/leetcode/issues/42)|30.00%|Hard| +|41|[First Missing Positive](https://github.com/grandyang/leetcode/issues/41)|22.90%|Hard| +|40|[Combination Sum II](https://github.com/grandyang/leetcode/issues/40)|25.20%|Medium| +|39|[Combination Sum](https://github.com/grandyang/leetcode/issues/39)|27.90%|Medium| +|38|[Count and Say](https://github.com/grandyang/leetcode/issues/38)|25.20%|Easy| +|37|[Sudoku Solver](https://github.com/grandyang/leetcode/issues/37)|21.80%|Hard| +|36|[Valid Sudoku](https://github.com/grandyang/leetcode/issues/36)|27.20%|Easy| +|35|[Search Insert Position](https://github.com/grandyang/leetcode/issues/35)|35.40%|Medium| +|34|[Search for a Range](https://github.com/grandyang/leetcode/issues/34)|27.50%|Medium| +|33|[Search in Rotated Sorted Array](https://github.com/grandyang/leetcode/issues/33)|28.80%|Hard| +|32|[Longest Valid Parentheses](https://github.com/grandyang/leetcode/issues/32)|20.90%|Hard| +|31|[Next Permutation](https://github.com/grandyang/leetcode/issues/31)|25.00%|Medium| +|30|[Substring with Concatenation of All Words](https://github.com/grandyang/leetcode/issues/30)|19.40%|Hard| +|29|[Divide Two Integers](https://github.com/grandyang/leetcode/issues/29)|15.00%|Medium| +|28|[Implement strStr()](https://github.com/grandyang/leetcode/issues/28)|22.20%|Easy| +|27|[Remove Element](https://github.com/grandyang/leetcode/issues/27)|32.10%|Easy| +|26|[Remove Duplicates from Sorted Array](https://github.com/grandyang/leetcode/issues/26)|31.30%|Easy| +|25|[Reverse Nodes in k-Group](https://github.com/grandyang/leetcode/issues/25)|25.50%|Hard| +|24|[Swap Nodes in Pairs](https://github.com/grandyang/leetcode/issues/24)|32.50%|Medium| +|23|[Merge k Sorted Lists](https://github.com/grandyang/leetcode/issues/23)|21.10%|Hard| +|22|[Generate Parentheses](https://github.com/grandyang/leetcode/issues/22)|32.60%|Medium| +|21|[Merge Two Sorted Lists](https://github.com/grandyang/leetcode/issues/21)|32.70%|Easy| +|20|[Valid Parentheses](https://github.com/grandyang/leetcode/issues/20)|26.50%|Easy| +|19|[Remove Nth Node From End of List](https://github.com/grandyang/leetcode/issues/19)|27.10%|Easy| +|18|[4Sum](https://github.com/grandyang/leetcode/issues/18)|21.70%|Medium| +|17|[Letter Combinations of a Phone Number](https://github.com/grandyang/leetcode/issues/17)|25.80%|Medium| +|16|[3Sum Closest](https://github.com/grandyang/leetcode/issues/16)|26.90%|Medium| +|15|[3Sum](https://github.com/grandyang/leetcode/issues/15)|16.90%|Medium| +|14|[Longest Common Prefix](https://github.com/grandyang/leetcode/issues/14)|25.50%|Easy| +|13|[Roman to Integer](https://github.com/grandyang/leetcode/issues/13)|34.00%|Easy| +|12|[Integer to Roman](https://github.com/grandyang/leetcode/issues/12)|33.80%|Medium| +|11|[Container With Most Water](https://github.com/grandyang/leetcode/issues/11)|32.00%|Medium| +|10|[Regular Expression Matching](https://github.com/grandyang/leetcode/issues/10)|20.70%|Hard| +|9|[Palindrome Number](https://github.com/grandyang/leetcode/issues/9)|28.30%|Easy| +|8|[String to Integer (atoi)](https://github.com/grandyang/leetcode/issues/8)|13.00%|Easy| +|7|[Reverse Integer](https://github.com/grandyang/leetcode/issues/7)|25.10%|Easy| +|6|[ZigZag Conversion](https://github.com/grandyang/leetcode/issues/6)|21.80%|Easy| +|5|[Longest Palindromic Substring](https://github.com/grandyang/leetcode/issues/5)|20.70%|Medium| +|4|[Median of Two Sorted Arrays](https://github.com/grandyang/leetcode/issues/4)|17.40%|Hard| +|3|[Longest Substring Without Repeating Characters](https://github.com/grandyang/leetcode/issues/3)|20.60%|Medium| +|2|[Add Two Numbers](https://github.com/grandyang/leetcode/issues/2)|21.10%|Medium| +|1|[Two Sum](https://github.com/grandyang/leetcode/issues/1)|17.70%|Medium| + + + @@ -960,7 +1399,7 @@ Note: 所有的讲解写在了 GitHub Issue 上面, **请不要在本项目中 ### iOS 应用商店地址: -[https://itunes.apple.com/us/app/leetcode-meet-me/id1227610436?mt=8](https://itunes.apple.com/us/app/leetcode-meet-me/id1227610436?mt=8) +已下架，不再提供下载～
@@ -972,6 +1411,10 @@ Note: 所有的讲解写在了 GitHub Issue 上面, **请不要在本项目中
+Q用 Venmo 的朋友们也可以打赏哦，感谢大家的支持～ + +
+
## 特别鸣谢 diff --git a/README.md b/README.md index 813f9da..5f60ba4 100644 --- a/README.md +++ b/README.md @@ -15,930 +15,1367 @@ Provide all my solutions and explanations in Chinese for all the Leetcode coding Same as this: [LeetCode All in One 题目讲解汇总(持续更新中...)](https://www.cnblogs.com/grandyang/p/4606334.html) -Note: All explanations are written in Github Issues, **please do not create any new issue or pull request in this project since the problem index should be consistent with the issue index**, thanks! +[Click below image to watch YouTube Video](https://www.youtube.com/playlist?list=PLZFoAdzIur8ii06R2KsX7Mct2PEuUh0tc) +[![Video](https://raw.githubusercontent.com/grandyang/leetcode/master/podcast.png)](https://www.youtube.com/playlist?list=PLZFoAdzIur8ii06R2KsX7Mct2PEuUh0tc) -('$' means the problem is locked on Leetcode, '*' means the problem is related to Database, '#' means the problem is related to Shell.) +Note: All explanations are written in Github Issues, **please do not create any new issue or pull request in this project since the problem index should be consistent with the issue index**, thanks! +('$' means the problem is locked on Leetcode, '*' means the problem is related to Database, '#' means the problem is related to Shell, '~' means the concurrency problems.) | # | Title | Solution | Difficulty | |---| ----- | -------- | ---------- | -|919|[Complete Binary Tree Inserter](https://github.com/grandyang/LeetCode-All-In-One/issues/919)|55.70%|Medium| -|918|[Maximum Sum Circular Subarray](https://github.com/grandyang/LeetCode-All-In-One/issues/918)|33.20%|Medium| -|917|[Reverse Only Letters](https://github.com/grandyang/LeetCode-All-In-One/issues/917)|56.30%|Easy| -|916|[Word Subsets](https://github.com/grandyang/LeetCode-All-In-One/issues/916)|45.90%|Medium| -|915|[Partition Array into Disjoint Intervals](https://github.com/grandyang/LeetCode-All-In-One/issues/915)|43.90%|Medium| -|914|[X of a Kind in a Deck of Cards](https://github.com/grandyang/LeetCode-All-In-One/issues/914)|34.00%|Easy| -|913|[Cat and Mouse](https://github.com/grandyang/LeetCode-All-In-One/issues/913)|29.90%|Hard| -|912|[Sort an Array](https://github.com/grandyang/LeetCode-All-In-One/issues/912)|62.90%|Medium| -|911|[Online Election](https://github.com/grandyang/LeetCode-All-In-One/issues/911)|48.30%|Medium| -|910|[Smallest Range II](https://github.com/grandyang/LeetCode-All-In-One/issues/910)|24.90%|Medium| -|909|[Snakes and Ladders](https://github.com/grandyang/LeetCode-All-In-One/issues/909)|36.10%|Easy| -|908|[Smallest Range I](https://github.com/grandyang/LeetCode-All-In-One/issues/908)|65.00%|Easy| -|907|[Sum of Subarray Minimums](https://github.com/grandyang/LeetCode-All-In-One/issues/907)|29.40%|Medium| -|906|[Super Palindromes](https://github.com/grandyang/LeetCode-All-In-One/issues/906)|30.80%|Hard| -|905|[Sort Array By Parity](https://github.com/grandyang/LeetCode-All-In-One/issues/905)|72.60%|Easy| -|904|[Fruit Into Baskets](https://github.com/grandyang/LeetCode-All-In-One/issues/904)|41.70%|Medium| -|903|[Valid Permutations for DI Sequence](https://github.com/grandyang/LeetCode-All-In-One/issues/903)|45.10%|Hard| -|902|[Numbers At Most N Given Digit Set](https://github.com/grandyang/LeetCode-All-In-One/issues/902)|28.80%|Hard| -|901|[Online Stock Span](https://github.com/grandyang/LeetCode-All-In-One/issues/901)|49.90%|Medium| -|900|[RLE Iterator](https://github.com/grandyang/LeetCode-All-In-One/issues/900)|50.50%|Medium| -|899|[Orderly Queue](https://github.com/grandyang/LeetCode-All-In-One/issues/899)|47.70%|Hard| -|898|[Bitwise ORs of Subarrays](https://github.com/grandyang/LeetCode-All-In-One/issues/898)|34.70%|Medium| -|897|[Increasing Order Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/897)|65.20%|Easy| -|896|[Monotonic Array](https://github.com/grandyang/LeetCode-All-In-One/issues/896)|55.40%|Easy| -|895|[Maximum Frequency Stack](https://github.com/grandyang/LeetCode-All-In-One/issues/895)|56.70%|Hard| -|894|[All Possible Full Binary Trees](https://github.com/grandyang/LeetCode-All-In-One/issues/894)|71.30%|Medium| -|893|[Groups of Special-Equivalent Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/893)|63.00%|Easy| -|892|[Surface Area of 3D Shapes](https://github.com/grandyang/LeetCode-All-In-One/issues/892)|56.10%|Easy| -|891|[Sum of Subsequence Widths](https://github.com/grandyang/LeetCode-All-In-One/issues/891)|29.20%|Hard| -|890|[Find and Replace Pattern](https://github.com/grandyang/LeetCode-All-In-One/issues/890)|71.30%|Medium| -|889|[Construct Binary Tree from Preorder and Postorder Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/889)|60.70%|Medium| -|888|[Fair Candy Swap](https://github.com/grandyang/LeetCode-All-In-One/issues/888)|56.90%|Easy| -|887|[Super Egg Drop](https://github.com/grandyang/LeetCode-All-In-One/issues/887)|24.90%|Hard| -|886|[Possible Bipartition](https://github.com/grandyang/LeetCode-All-In-One/issues/886)|40.90%|Medium| -|885|[Spiral Matrix III](https://github.com/grandyang/LeetCode-All-In-One/issues/885)|64.80%|Medium| -|884|[Uncommon Words from Two Sentences](https://github.com/grandyang/LeetCode-All-In-One/issues/884)|60.90%|Easy| -|883|[Projection Area of 3D Shapes](https://github.com/grandyang/LeetCode-All-In-One/issues/883)|65.90%|Easy| -|882|[Reachable Nodes In Subdivided Graph](https://github.com/grandyang/LeetCode-All-In-One/issues/882)|38.20%|Hard| -|881|[Boats to Save People](https://github.com/grandyang/LeetCode-All-In-One/issues/881)|44.10%|Medium| -|880|[Decoded String at Index](https://github.com/grandyang/LeetCode-All-In-One/issues/880)|23.00%|Medium| -|879|[Profitable Schemes](https://github.com/grandyang/LeetCode-All-In-One/issues/879)|36.20%|Hard| -|878|[Nth Magical Number](https://github.com/grandyang/LeetCode-All-In-One/issues/878)|25.40%|Hard| -|877|[Stone Game](https://github.com/grandyang/LeetCode-All-In-One/issues/877)|61.10%|Medium| -|876|[Middle of the Linked List](https://github.com/grandyang/LeetCode-All-In-One/issues/876)|63.80%|Easy| -|875|[Koko Eating Bananas](https://github.com/grandyang/LeetCode-All-In-One/issues/875)|45.90%|Medium| -|874|[Walking Robot Simulation](https://github.com/grandyang/LeetCode-All-In-One/issues/874)|31.70%|Easy| -|873|[Length of Longest Fibonacci Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/873)|46.00%|Medium| -|872|[Leaf-Similar Trees](https://github.com/grandyang/LeetCode-All-In-One/issues/872)|63.10%|Easy| -|871|Minimum Number of Refueling Stops|28.70%|Hard| -|870|[Advantage Shuffle](https://github.com/grandyang/LeetCode-All-In-One/issues/870)|42.20%|Medium| -|869|[Reordered Power of 2](https://github.com/grandyang/LeetCode-All-In-One/issues/869)|50.60%|Medium| -|868|[Binary Gap](https://github.com/grandyang/LeetCode-All-In-One/issues/868)|59.30%|Easy| -|867|[Transpose Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/867)|63.90%|Easy| -|866|[Prime Palindrome](https://github.com/grandyang/LeetCode-All-In-One/issues/866)|20.00%|Medium| -|865|[Smallest Subtree with all the Deepest Nodes](https://github.com/grandyang/LeetCode-All-In-One/issues/865)|55.40%|Medium| -|864|[Shortest Path to Get All Keys](https://github.com/grandyang/LeetCode-All-In-One/issues/864)|35.70%|Hard| -|863|[All Nodes Distance K in Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/863)|46.80%|Medium| -|862|[Shortest Subarray with Sum at Least K](https://github.com/grandyang/LeetCode-All-In-One/issues/862)|22.00%|Hard| -|861|[Score After Flipping Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/861)|69.30%|Medium| -|860|[Lemonade Change](https://github.com/grandyang/LeetCode-All-In-One/issues/860)|50.20%|Easy| -|859|[Buddy Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/859)|27.60%|Easy| -|858|[Mirror Reflection](https://github.com/grandyang/LeetCode-All-In-One/issues/858)|52.00%|Medium| -|857|[Minimum Cost to Hire K Workers](https://github.com/grandyang/LeetCode-All-In-One/issues/857)|47.30%|Hard| -|856|[Score of Parentheses](https://github.com/grandyang/LeetCode-All-In-One/issues/856)|55.90%|Medium| -|855|[Exam Room](https://github.com/grandyang/LeetCode-All-In-One/issues/855)|38.10%|Medium| -|854|[K-Similar Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/854)|33.20%|Hard| -|853|[Car Fleet](https://github.com/grandyang/LeetCode-All-In-One/issues/853)|39.30%|Medium| -|852|[Peak Index in a Mountain Array](https://github.com/grandyang/LeetCode-All-In-One/issues/852)|68.50%|Easy| -|851|[Loud and Rich](https://github.com/grandyang/LeetCode-All-In-One/issues/851)|47.40%|Medium| -|850|[Rectangle Area II](https://github.com/grandyang/LeetCode-All-In-One/issues/850)|44.00%|Hard| -|849|[Maximize Distance to Closest Person](https://github.com/grandyang/LeetCode-All-In-One/issues/849)|40.40%|Easy| -|848|[Shifting Letters](https://github.com/grandyang/LeetCode-All-In-One/issues/848)|39.90%|Medium| -|847|[Shortest Path Visiting All Nodes](https://github.com/grandyang/LeetCode-All-In-One/issues/847)|45.90%|Hard| -|846|[Hand of Straights](https://github.com/grandyang/LeetCode-All-In-One/issues/846)|48.60%|Medium| -|845|[Longest Mountain in Array](https://github.com/grandyang/LeetCode-All-In-One/issues/845)|34.00%|Medium| -|844|[Backspace String Compare](https://github.com/grandyang/LeetCode-All-In-One/issues/844)|45.50%|Easy| -|843|[Guess the Word](https://github.com/grandyang/LeetCode-All-In-One/issues/843)|42.60%|Hard| -|842|[Split Array into Fibonacci Sequence](https://github.com/grandyang/LeetCode-All-In-One/issues/842)|34.60%|Medium| -|841|[Keys and Rooms](https://github.com/grandyang/LeetCode-All-In-One/issues/841)|59.70%|Medium| -|840|[Magic Squares In Grid](https://github.com/grandyang/LeetCode-All-In-One/issues/840)|35.10%|Easy| -|839|[Similar String Groups](https://github.com/grandyang/LeetCode-All-In-One/issues/839)|33.50%|Hard| -|838|[Push Dominoes](https://github.com/grandyang/LeetCode-All-In-One/issues/838)|42.80%|Medium| -|837|[New 21 Game](https://github.com/grandyang/LeetCode-All-In-One/issues/837)|29.50%|Medium| -|836|[Rectangle Overlap](https://github.com/grandyang/LeetCode-All-In-One/issues/836)|45.50%|Easy| -|835|[Image Overlap](https://github.com/grandyang/LeetCode-All-In-One/issues/835)|50.30%|Medium| -|834|[Sum of Distances in Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/834)|38.10%|Hard| -|833|[Find And Replace in String](https://github.com/grandyang/LeetCode-All-In-One/issues/833)|44.50%|Medium| -|832|[Flipping an Image](https://github.com/grandyang/LeetCode-All-In-One/issues/832)|71.30%|Easy| -|831|[Masking Personal Information](https://github.com/grandyang/LeetCode-All-In-One/issues/831)|41.50%|Medium| -|830|[Positions of Large Groups](https://github.com/grandyang/LeetCode-All-In-One/issues/830)|47.40%|Easy| -|829|[Consecutive Numbers Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/829)|32.10%|Hard| -|828|[Unique Letter String](https://github.com/grandyang/LeetCode-All-In-One/issues/828)|38.10%|Hard| -|827|[Making A Large Island](https://github.com/grandyang/LeetCode-All-In-One/issues/827)|42.10%|Hard| -|826|[Most Profit Assigning Work](https://github.com/grandyang/LeetCode-All-In-One/issues/826)|34.70%|Medium| -|825|[Friends Of Appropriate Ages](https://github.com/grandyang/LeetCode-All-In-One/issues/825)|35.00%|Medium| -|824|[Goat Latin](https://github.com/grandyang/LeetCode-All-In-One/issues/824)|56.70%|Easy| -|823|[Binary Trees With Factors](https://github.com/grandyang/LeetCode-All-In-One/issues/823)|31.50%|Medium| -|822|[Card Flipping Game](https://github.com/grandyang/LeetCode-All-In-One/issues/822)|39.70%|Medium| -|821|[Shortest Distance to a Character](https://github.com/grandyang/LeetCode-All-In-One/issues/821)|62.60%|Easy| -|820|[Short Encoding of Words](https://github.com/grandyang/LeetCode-All-In-One/issues/820)|46.00%|Medium| -|819|[Most Common Word](https://github.com/grandyang/LeetCode-All-In-One/issues/819)|41.50%|Easy| -|818|[Race Car](https://github.com/grandyang/LeetCode-All-In-One/issues/818)|34.00%|Hard| -|817|[Linked List Components](https://github.com/grandyang/LeetCode-All-In-One/issues/817)|51.90%|Medium| -|816|[Ambiguous Coordinates](https://github.com/grandyang/LeetCode-All-In-One/issues/816)|42.40%|Medium| -|815|[Bus Routes](https://github.com/grandyang/LeetCode-All-In-One/issues/815)|36.10%|Hard| -|814|[Binary Tree Pruning](https://github.com/grandyang/LeetCode-All-In-One/issues/814)|68.30%|Medium| -|813|[Largest Sum of Averages](https://github.com/grandyang/LeetCode-All-In-One/issues/813)|42.40%|Medium| -|812|[Largest Triangle Area](https://github.com/grandyang/LeetCode-All-In-One/issues/812)|53.80%|Easy| -|811|[Subdomain Visit Count](https://github.com/grandyang/LeetCode-All-In-One/issues/811)|61.50%|Easy| -|810|[Chalkboard XOR Game](https://github.com/grandyang/LeetCode-All-In-One/issues/810)|41.90%|Hard| -|809|[Expressive Words](https://github.com/grandyang/LeetCode-All-In-One/issues/809)|39.50%|Medium| -|808|[Soup Servings](https://github.com/grandyang/LeetCode-All-In-One/issues/808)|33.60%|Medium| -|807|[Max Increase to Keep City Skyline](https://github.com/grandyang/LeetCode-All-In-One/issues/807)|79.60%|Medium| -|806|[Number of Lines To Write String](https://github.com/grandyang/LeetCode-All-In-One/issues/806)|62.10%|Easy| -|805|[Split Array With Same Average](https://github.com/grandyang/LeetCode-All-In-One/issues/805)|21.00%|Hard| -|804|[Unique Morse Code Words](https://github.com/grandyang/LeetCode-All-In-One/issues/804)|71.30%|Easy| -|803|[Bricks Falling When Hit](https://github.com/grandyang/LeetCode-All-In-One/issues/803)|22.90%|Hard| -|802|[Find Eventual Safe States](https://github.com/grandyang/LeetCode-All-In-One/issues/802)|39.20%|Medium| -|801|[Minimum Swaps To Make Sequences Increasing](https://github.com/grandyang/LeetCode-All-In-One/issues/801)|31.00%|Medium| -|800|[Similar RGB Color](https://github.com/grandyang/LeetCode-All-In-One/issues/800) $|54.50%|Easy| -|799|[Champagne Tower](https://github.com/grandyang/LeetCode-All-In-One/issues/799)|29.90%|Medium| -|798|[Smallest Rotation with Highest Score](https://github.com/grandyang/LeetCode-All-In-One/issues/798)|34.30%|Hard| -|797|[All Paths From Source to Target](https://github.com/grandyang/LeetCode-All-In-One/issues/797)|67.40%|Medium| -|796|[Rotate String](https://github.com/grandyang/LeetCode-All-In-One/issues/796)|49.60%|Easy| -|795|[Number of Subarrays with Bounded Maximum](https://github.com/grandyang/LeetCode-All-In-One/issues/795)|41.60%|Medium| -|794|[Valid Tic-Tac-Toe State](https://github.com/grandyang/LeetCode-All-In-One/issues/794)|27.80%|Medium| -|793|[Preimage Size of Factorial Zeroes Function](https://github.com/grandyang/LeetCode-All-In-One/issues/793)|40.80%|Hard| -|792|[Number of Matching Subsequences](https://github.com/grandyang/LeetCode-All-In-One/issues/792)|37.30%|Medium| -|791|[Custom Sort String](https://github.com/grandyang/LeetCode-All-In-One/issues/791)|59.40%|Medium| -|790|[Domino and Tromino Tiling](https://github.com/grandyang/LeetCode-All-In-One/issues/790)|32.80%|Medium| -|789|[Escape The Ghosts](https://github.com/grandyang/LeetCode-All-In-One/issues/789)|51.00%|Medium| -|788|[Rotated Digits](https://github.com/grandyang/LeetCode-All-In-One/issues/788)|51.00%|Easy| -|787|[Cheapest Flights Within K Stops](https://github.com/grandyang/LeetCode-All-In-One/issues/787)|29.90%|Medium| -|786|[K-th Smallest Prime Fraction](https://github.com/grandyang/LeetCode-All-In-One/issues/786)|32.50%|Hard| -|785|[Is Graph Bipartite](https://github.com/grandyang/LeetCode-All-In-One/issues/785)|38.50%|Medium| -|784|[Letter Case Permutation](https://github.com/grandyang/LeetCode-All-In-One/issues/784)|53.00%|Easy| -|783|[Minimum Distance Between BST Nodes](https://github.com/grandyang/LeetCode-All-In-One/issues/783)|47.80%|Easy| -|782|[Transform to Chessboard](https://github.com/grandyang/LeetCode-All-In-One/issues/782)|37.50%|Hard| -|781|[Rabbits in Forest](https://github.com/grandyang/LeetCode-All-In-One/issues/781)|49.80%|Medium| -|780|[Reaching Points](https://github.com/grandyang/LeetCode-All-In-One/issues/780)|23.90%|Hard| -|779|[K-th Symbol in Grammar](https://github.com/grandyang/LeetCode-All-In-One/issues/779)|37.30%|Medium| -|778|[Swim in Rising Water](https://github.com/grandyang/LeetCode-All-In-One/issues/778)|44.60%|Hard| -|777|[Swap Adjacent in LR String](https://github.com/grandyang/LeetCode-All-In-One/issues/777)|28.90%|Medium| -|776|[Split BST](https://github.com/grandyang/LeetCode-All-In-One/issues/776) $|49.90%|Medium| -|775|[Global and Local Inversions](https://github.com/grandyang/LeetCode-All-In-One/issues/775)|33.60%|Medium| -|774|[Minimize Max Distance to Gas Station](https://github.com/grandyang/LeetCode-All-In-One/issues/774) $|32.80%|Hard| -|773|[Sliding Puzzle](https://github.com/grandyang/LeetCode-All-In-One/issues/773)|46.50%|Hard| -|772|[Basic Calculator III](https://github.com/grandyang/LeetCode-All-In-One/issues/772) $|40.10%|Hard| -|771|[Jewels and Stones](https://github.com/grandyang/LeetCode-All-In-One/issues/771)|81.90%|Easy| +|1352|[Product of the Last K Numbers](https://github.com/grandyang/leetcode/issues/1352)|50.20%|Medium| +|1351|[Count Negative Numbers in a Sorted Matrix](https://github.com/grandyang/leetcode/issues/1351)|77.30%|Easy| +|1350|Students With Invalid Departments * $|89.90%|Easy| +|1349|[Maximum Students Taking Exam](https://github.com/grandyang/leetcode/issues/1349)|49.80%|Hard| +|1348|[Tweet Counts Per Frequency](https://github.com/grandyang/leetcode/issues/1348)|44.00%|Medium| +|1347|[Minimum Number of Steps to Make Two Strings Anagram](https://github.com/grandyang/leetcode/issues/1347)|78.00%|Medium| +|1346|[Check If N and Its Double Exist](https://github.com/grandyang/leetcode/issues/1346)|36.70%|Easy| +|1345|[Jump Game IV](https://github.com/grandyang/leetcode/issues/1345)|46.60%|Hard| +|1344|[Angle Between Hands of a Clock](https://github.com/grandyang/leetcode/issues/1344)|63.40%|Medium| +|1343|[Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold](https://github.com/grandyang/leetcode/issues/1343)|68.10%|Medium| +|1342|[Number of Steps to Reduce a Number to Zero](https://github.com/grandyang/leetcode/issues/1342)|84.90%|Easy| +|1341|Movie Rating *|43.80%|Medium| +|1340|[Jump Game V](https://github.com/grandyang/leetcode/issues/1340)|62.60%|Hard| +|1339|[Maximum Product of Splitted Binary Tree](https://github.com/grandyang/leetcode/issues/1339)|47.70%|Medium| +|1338|[Reduce Array Size to The Half](https://github.com/grandyang/leetcode/issues/1338)|69.20%|Medium| +|1337|[The K Weakest Rows in a Matrix](https://github.com/grandyang/leetcode/issues/1337)|71.40%|Easy| +|1336|Number of Transactions per Visit *|48.10%|Hard| +|1335|[Minimum Difficulty of a Job Schedule](https://github.com/grandyang/leetcode/issues/1335)|58.30%|Hard| +|1334|[Find the City With the Smallest Number of Neighbors at a Threshold Distance](https://github.com/grandyang/leetcode/issues/1334)|57.70%|Medium| +|1333|"Filter Restaurants by Vegan-Friendly| Price and Distance"|60.50%| +|1332|[Remove Palindromic Subsequences](https://github.com/grandyang/leetcode/issues/1332)|76.20%|Easy| +|1331|[Rank Transform of an Array](https://github.com/grandyang/leetcode/issues/1331)|59.80%|Easy| +|1330|[Reverse Subarray To Maximize Array Value](https://github.com/grandyang/leetcode/issues/1330)|41.30%|Hard| +|1329|[Sort the Matrix Diagonally](https://github.com/grandyang/leetcode/issues/1329)|83.00%|Medium| +|1328|[Break a Palindrome](https://github.com/grandyang/leetcode/issues/1328)|52.10%|Medium| +|1327|List the Products Ordered in a Period *|71.90%|Easy| +|1326|[Minimum Number of Taps to Open to Water a Garden](https://github.com/grandyang/leetcode/issues/1326)|51.60%|Hard| +|1325|[Delete Leaves With a Given Value](https://github.com/grandyang/leetcode/issues/1325)|74.40%|Medium| +|1324|[Print Words Vertically](https://github.com/grandyang/leetcode/issues/1324)|62.40%|Medium| +|1323|[Maximum 69 Number](https://github.com/grandyang/leetcode/issues/1323)|82.00%|Easy| +|1322|Ads Performance * $|60.10%|Easy| +|1321|Restaurant Growth *|53.40%|Medium| +|1320|[Minimum Distance to Type a Word Using Two Fingers](https://github.com/grandyang/leetcode/issues/1320)|59.80%|Hard| +|1319|[Number of Operations to Make Network Connected](https://github.com/grandyang/leetcode/issues/1319)|58.50%|Medium| +|1318|[Minimum Flips to Make a OR b Equal to c](https://github.com/grandyang/leetcode/issues/1318)|66.00%|Medium| +|1317|[Convert Integer to the Sum of Two No-Zero Integers](https://github.com/grandyang/leetcode/issues/1317)|56.00%|Easy| +|1316|[Distinct Echo Substrings](https://github.com/grandyang/leetcode/issues/1316)|49.70%|Hard| +|1315|[Sum of Nodes with Even-Valued Grandparent](https://github.com/grandyang/leetcode/issues/1315)|85.60%|Medium| +|1314|[Matrix Block Sum](https://github.com/grandyang/leetcode/issues/1314)|75.40%|Medium| +|1313|[Decompress Run-Length Encoded List](https://github.com/grandyang/leetcode/issues/1313)|85.90%|Easy| +|1312|[Minimum Insertion Steps to Make a String Palindrome](https://github.com/grandyang/leetcode/issues/1312)|65.70%|Hard| +|1311|[Get Watched Videos by Your Friends](https://github.com/grandyang/leetcode/issues/1311)|45.90%|Medium| +|1310|[XOR Queries of a Subarray](https://github.com/grandyang/leetcode/issues/1310)|72.20%|Medium| +|1309|[Decrypt String from Alphabet to Integer Mapping](https://github.com/grandyang/leetcode/issues/1309)|79.50%|Easy| +|1308|Running Total for Different Genders * $|88.20%|Medium| +|1307|[Verbal Arithmetic Puzzle](https://github.com/grandyang/leetcode/issues/1307)|34.80%|Hard| +|1306|[Jump Game III](https://github.com/grandyang/leetcode/issues/1306)|63.10%|Medium| +|1305|[All Elements in Two Binary Search Trees](https://github.com/grandyang/leetcode/issues/1305)|79.80%|Medium| +|1304|[Find N Unique Integers Sum up to Zero](https://github.com/grandyang/leetcode/issues/1304)|77.10%|Easy| +|1303|Find the Team Size * $|90.80%|Easy| +|1302|[Deepest Leaves Sum](https://github.com/grandyang/leetcode/issues/1302)|86.90%|Medium| +|1301|[Number of Paths with Max Score](https://github.com/grandyang/leetcode/issues/1301)|38.70%|Hard| +|1300|[Sum of Mutated Array Closest to Target](https://github.com/grandyang/leetcode/issues/1300)|43.10%|Medium| +|1299|[Replace Elements with Greatest Element on Right Side](https://github.com/grandyang/leetcode/issues/1299)|74.70%|Easy| +|1298|[Maximum Candies You Can Get from Boxes](https://github.com/grandyang/leetcode/issues/1298)|60.90%|Hard| +|1297|[Maximum Number of Occurrences of a Substring](https://github.com/grandyang/leetcode/issues/1297)|52.00%|Medium| +|1296|[Divide Array in Sets of K Consecutive Numbers](https://github.com/grandyang/leetcode/issues/1296)|56.60%|Medium| +|1295|[Find Numbers with Even Number of Digits](https://github.com/grandyang/leetcode/issues/1295)|77.00%|Easy| +|1294|Weather Type in Each Country * $|68.00%|Easy| +|1293|[Shortest Path in a Grid with Obstacles Elimination](https://github.com/grandyang/leetcode/issues/1293)|45.60%|Hard| +|1292|[Maximum Side Length of a Square with Sum Less than or Equal to Threshold](https://github.com/grandyang/leetcode/issues/1292)|52.10%|Medium| +|1291|[Sequential Digits](https://github.com/grandyang/leetcode/issues/1291)|60.90%|Medium| +|1290|[Convert Binary Number in a Linked List to Integer](https://github.com/grandyang/leetcode/issues/1290)|82.70%|Easy| +|1289|[Minimum Falling Path Sum II](https://github.com/grandyang/leetcode/issues/1289)|61.20%|Hard| +|1288|[Remove Covered Intervals](https://github.com/grandyang/leetcode/issues/1288)|57.40%|Medium| +|1287|[Element Appearing More Than 25% In Sorted Array](https://github.com/grandyang/leetcode/issues/1287)|59.50%|Easy| +|1286|[Iterator for Combination](https://github.com/grandyang/leetcode/issues/1286)|73.20%|Medium| +|1285|Find the Start and End Number of Continuous Ranges * $|88.30%|Medium| +|1284|[Minimum Number of Flips to Convert Binary Matrix to Zero Matrix](https://github.com/grandyang/leetcode/issues/1284)|72.00%|Hard| +|1283|[Find the Smallest Divisor Given a Threshold](https://github.com/grandyang/leetcode/issues/1283)|53.70%|Medium| +|1282|[Group the People Given the Group Size They Belong To](https://github.com/grandyang/leetcode/issues/1282)|85.20%|Medium| +|1281|[Subtract the Product and Sum of Digits of an Integer](https://github.com/grandyang/leetcode/issues/1281)|86.30%|Easy| +|1280|Students and Examinations * $|74.60%|Easy| +|1279|Traffic Light Controlled Intersection ~ $|75.30%|Easy| +|1278|[Palindrome Partitioning III](https://github.com/grandyang/leetcode/issues/1278)|60.90%|Hard| +|1277|[Count Square Submatrices with All Ones](https://github.com/grandyang/leetcode/issues/1277)|74.20%|Medium| +|1276|[Number of Burgers with No Waste of Ingredients](https://github.com/grandyang/leetcode/issues/1276)|50.60%|Medium| +|1275|[Find Winner on a Tic Tac Toe Game](https://github.com/grandyang/leetcode/issues/1275)|54.90%|Easy| +|1274|Number of Ships in a Rectangle $|68.60%|Hard| +|1273|Delete Tree Nodes $|61.20%|Medium| +|1272|Remove Interval $|61.10%|Medium| +|1271|Hexspeak $|56.30%|Easy| +|1270|All People Report to the Given Manager * $|88.10%|Medium| +|1269|[Number of Ways to Stay in the Same Place After Some Steps](https://github.com/grandyang/leetcode/issues/1269)|43.40%|Hard| +|1268|[Search Suggestions System](https://github.com/grandyang/leetcode/issues/1268)|65.40%|Medium| +|1267|Count Servers that Communicate|58.30%|Medium| +|1266|[Minimum Time Visiting All Points](https://github.com/grandyang/leetcode/issues/1266)|79.20%|Easy| +|1265|Print Immutable Linked List in Reverse $|94.30%|Medium| +|1264|Page Recommendations * $|67.70%|Medium| +|1263|[Minimum Moves to Move a Box to Their Target Location](https://github.com/grandyang/leetcode/issues/1263)|48.30%|Hard| +|1262|[Greatest Sum Divisible by Three](https://github.com/grandyang/leetcode/issues/1262)|50.80%|Medium| +|1261|[Find Elements in a Contaminated Binary Tree](https://github.com/grandyang/leetcode/issues/1261)|75.70%|Medium| +|1260|[Shift 2D Grid](https://github.com/grandyang/leetcode/issues/1260)|62.10%|Easy| +|1259|Handshakes That Don't Cross $|54.40%|Hard| +|1258|Synonymous Sentences $|57.40%|Medium| +|1257|Smallest Common Region $|62.10%|Medium| +|1256|Encode Number $|69.00%|Medium| +|1255|[Maximum Score Words Formed by Letters](https://github.com/grandyang/leetcode/issues/1255)|71.30%|Hard| +|1254|[Number of Closed Islands](https://github.com/grandyang/leetcode/issues/1254)|62.70%|Medium| +|1253|[Reconstruct a 2-Row Binary Matrix](https://github.com/grandyang/leetcode/issues/1253)|42.70%|Medium| +|1252|[Cells with Odd Values in a Matrix](https://github.com/grandyang/leetcode/issues/1252)|78.50%|Easy| +|1251|Average Selling Price * $|83.20%|Easy| +|1250|[Check If It Is a Good Array](https://github.com/grandyang/leetcode/issues/1250)|57.50%|Hard| +|1249|[Minimum Remove to Make Valid Parentheses](https://github.com/grandyang/leetcode/issues/1249)|65.00%|Medium| +|1248|[Count Number of Nice Subarrays](https://github.com/grandyang/leetcode/issues/1248)|57.60%|Medium| +|1247|[Minimum Swaps to Make Strings Equal](https://github.com/grandyang/leetcode/issues/1247)|63.60%|Medium| +|1246|Palindrome Removal $|45.80%|Hard| +|1245|Tree Diameter $|62.00%|Medium| +|1244|Design A Leaderboard $|67.30%|Medium| +|1243|Array Transformation $|50.10%|Easy| +|1242|Web Crawler Multithreaded ~ $|48.20%|Medium| +|1241|Number of Comments per Post * $|68.00%|Easy| +|1240|[Tiling a Rectangle with the Fewest Squares](https://github.com/grandyang/leetcode/issues/1240)|52.40%|Hard| +|1239|[Maximum Length of a Concatenated String with Unique Characters](https://github.com/grandyang/leetcode/issues/1239)|50.70%|Medium| +|1238|[Circular Permutation in Binary Representation](https://github.com/grandyang/leetcode/issues/1238)|67.90%|Medium| +|1237|[Find Positive Integer Solution for a Given Equation](https://github.com/grandyang/leetcode/issues/1237)|69.70%|Medium| +|1236|Web Crawler $|65.40%|Medium| +|1235|[Maximum Profit in Job Scheduling](https://github.com/grandyang/leetcode/issues/1235)|50.50%|Hard| +|1234|[Replace the Substring for Balanced String](https://github.com/grandyang/leetcode/issues/1234)|35.50%|Medium| +|1233|[Remove Sub-Folders from the Filesystem](https://github.com/grandyang/leetcode/issues/1233)|64.50%|Medium| +|1232|[Check If It Is a Straight Line](https://github.com/grandyang/leetcode/issues/1232)|42.30%|Easy| +|1231|Divide Chocolate $|55.50%|Hard| +|1230|Toss Strange Coins $|50.80%|Medium| +|1229|Meeting Scheduler $|54.70%|Medium| +|1228|Missing Number In Arithmetic Progression $|51.20%|Medium| +|1227|[Airplane Seat Assignment Probability](https://github.com/grandyang/leetcode/issues/1227)|63.00%|Medium| +|1226|The Dining Philosophers ~|60.20%|Medium| +|1225|Report Contiguous Dates *|63.80%|Hard| +|1224|[Maximum Equal Frequency](https://github.com/grandyang/leetcode/issues/1224)|36.20%|Hard| +|1223|[Dice Roll Simulation](https://github.com/grandyang/leetcode/issues/1223)|47.40%|Hard| +|1222|[Queens That Can Attack the King](https://github.com/grandyang/leetcode/issues/1222)|70.20%|Medium| +|1221|[Split a String in Balanced Strings](https://github.com/grandyang/leetcode/issues/1221)|84.60%|Easy| +|1220|[Count Vowels Permutation](https://github.com/grandyang/leetcode/issues/1220)|56.60%|Hard| +|1219|[Path with Maximum Gold](https://github.com/grandyang/leetcode/issues/1219)|66.10%|Medium| +|1218|[Longest Arithmetic Subsequence of Given Difference](https://github.com/grandyang/leetcode/issues/1218)|48.10%|Medium| +|1217|[Minimum Cost to Move Chips to The Same Position](https://github.com/grandyang/leetcode/issues/1217)|70.70%|Easy| +|1216|Valid Palindrome III $|50.80%|Hard| +|1215|Stepping Numbers $|44.60%|Medium| +|1214|Two Sum BSTs $|67.30%|Medium| +|1213|Intersection of Three Sorted Arrays $|79.80%|Easy| +|1212|Team Scores in Football Tournament *|57.00%|Medium| +|1211|Queries Quality and Percentage *|70.40%|Easy| +|1210|[Minimum Moves to Reach Target with Rotations](https://github.com/grandyang/leetcode/issues/1210)|47.50%|Hard| +|1209|[Remove All Adjacent Duplicates in String II](https://github.com/grandyang/leetcode/issues/1209)|56.40%|Medium| +|1208|[Get Equal Substrings Within Budget](https://github.com/grandyang/leetcode/issues/1208)|45.30%|Medium| +|1207|[Unique Number of Occurrences](https://github.com/grandyang/leetcode/issues/1207)|72.40%|Easy| +|1206|[Design Skiplist](https://github.com/grandyang/leetcode/issues/1206)|59.60%|Hard| +|1205|Monthly Transactions II *|45.30%|Medium| +|1204|Last Person to Fit in the Bus *|73.00%|Medium| +|1203|[Sort Items by Groups Respecting Dependencies](https://github.com/grandyang/leetcode/issues/1203)|48.80%|Hard| +|1202|[Smallest String With Swaps](https://github.com/grandyang/leetcode/issues/1202)|50.50%|Medium| +|1201|[Ugly Number III](https://github.com/grandyang/leetcode/issues/1201)|27.20%|Medium| +|1200|[Minimum Absolute Difference](https://github.com/grandyang/leetcode/issues/1200)|67.30%|Easy| +|1199|Minimum Time to Build Blocks $|39.40%|Hard| +|1198|Find Smallest Common Element in All Rows $|76.30%|Medium| +|1197|Minimum Knight Moves $|38.60%|Medium| +|1196|How Many Apples Can You Put into the Basket $|68.30%|Easy| +|1195|Fizz Buzz Multithreaded ~|71.40%|Medium| +|1194|Tournament Winners *|52.70%|Hard| +|1193|Monthly Transactions I *|68.70%|Medium| +|1192|[Critical Connections in a Network](https://github.com/grandyang/leetcode/issues/1192)|51.80%|Hard| +|1191|[K-Concatenation Maximum Sum](https://github.com/grandyang/leetcode/issues/1191)|24.60%|Medium| +|1190|[Reverse Substrings Between Each Pair of Parentheses](https://github.com/grandyang/leetcode/issues/1190)|65.00%|Medium| +|1189|[Maximum Number of Balloons](https://github.com/grandyang/leetcode/issues/1189)|62.00%|Easy| +|1188|Design Bounded Blocking Queue ~|73.20%|Medium| +|1187|[Make Array Strictly Increasing](https://github.com/grandyang/leetcode/issues/1187)|43.80%|Hard| +|1186|[Maximum Subarray Sum with One Deletion](https://github.com/grandyang/leetcode/issues/1186)|39.80%|Medium| +|1185|[Day of the Week](https://github.com/grandyang/leetcode/issues/1185)|59.90%|Easy| +|1184|[Distance Between Bus Stops](https://github.com/grandyang/leetcode/issues/1184)|53.90%|Easy| +|1183|Maximum Number of Ones $|58.70%|Hard| +|1182|Shortest Distance to Target Color $|54.30%|Medium| +|1181|Before and After Puzzle $|44.70%|Medium| +|1180|Count Substrings with Only One Distinct Letter $|78.30%|Easy| +|1179|Reformat Department Table *|82.10%|Easy| +|1178|[Number of Valid Words for Each Puzzle](https://github.com/grandyang/leetcode/issues/1178)|40.80%|Hard| +|1177|[Can Make Palindrome from Substring](https://github.com/grandyang/leetcode/issues/1177)|36.50%|Medium| +|1176|Diet Plan Performance $|53.50%|Easy| +|1175|[Prime Arrangements](https://github.com/grandyang/leetcode/issues/1175)|51.90%|Medium| +|1174|Immediate Food Delivery II *|63.10%|Medium| +|1173|Immediate Food Delivery I *|83.10%|Easy| +|1172|[Dinner Plate Stacks](https://github.com/grandyang/leetcode/issues/1172)|36.40%|Hard| +|1171|[Remove Zero Sum Consecutive Nodes from Linked List](https://github.com/grandyang/leetcode/issues/1171)|41.90%|Medium| +|1170|[Compare Strings by Frequency of the Smallest Character](https://github.com/grandyang/leetcode/issues/1170)|60.60%|Medium| +|1169|[Invalid Transactions](https://github.com/grandyang/leetcode/issues/1169)|30.40%|Medium| +|1168|Optimize Water Distribution in a Village $|62.30%|Hard| +|1167|Minimum Cost to Connect Sticks $|65.70%|Medium| +|1166|Design File System $|59.00%|Medium| +|1165|Single-Row Keyboard $|85.50%|Easy| +|1164|Product Price at a Given Date *|69.00%|Medium| +|1163|[Last Substring in Lexicographical Order](https://github.com/grandyang/leetcode/issues/1163)|36.00%|Hard| +|1162|[As Far from Land as Possible](https://github.com/grandyang/leetcode/issues/1162)|46.60%|Medium| +|1161|[Maximum Level Sum of a Binary Tree](https://github.com/grandyang/leetcode/issues/1161)|67.50%|Medium| +|1160|[Find Words That Can Be Formed by Characters](https://github.com/grandyang/leetcode/issues/1160)|67.80%|Easy| +|1159|Market Analysis II *|57.00%|Hard| +|1158|Market Analysis I *|65.00%|Medium| +|1157|[Online Majority Element In Subarray](https://github.com/grandyang/leetcode/issues/1157)|41.60%|Hard| +|1156|[Swap For Longest Repeated Character Substring](https://github.com/grandyang/leetcode/issues/1156)|47.20%|Medium| +|1155|[Number of Dice Rolls With Target Sum](https://github.com/grandyang/leetcode/issues/1155)|47.70%|Medium| +|1154|[Day of the Year](https://github.com/grandyang/leetcode/issues/1154)|50.10%|Easy| +|1153|String Transforms Into Another String $|35.60%|Hard| +|1152|Analyze User Website Visit Pattern $|43.20%|Medium| +|1151|Minimum Swaps to Group All 1's Together $|51.90%|Medium| +|1150|Check If a Number Is Majority Element in a Sorted Array $|57.10%|Easy| +|1149|Article Views II * $|48.20%|Medium| +|1148|Article Views I * $|77.10%|Easy| +|1147|[Longest Chunked Palindrome Decomposition](https://github.com/grandyang/leetcode/issues/1147)|59.80%|Hard| +|1146|[Snapshot Array](https://github.com/grandyang/leetcode/issues/1146)|37.00%|Medium| +|1145|[Binary Tree Coloring Game](https://github.com/grandyang/leetcode/issues/1145)|51.10%|Medium| +|1144|[Decrease Elements To Make Array Zigzag](https://github.com/grandyang/leetcode/issues/1144)|46.50%|Medium| +|1143|[Longest Common Subsequence](https://github.com/grandyang/leetcode/issues/1143)|58.80%|Medium| +|1142|User Activity for the Past 30 Days II * $|35.50%|Easy| +|1141|User Activity for the Past 30 Days I * $|54.60%|Easy| +|1140|[Stone Game II](https://github.com/grandyang/leetcode/issues/1140)|64.60%|Medium| +|1139|[Largest 1-Bordered Square](https://github.com/grandyang/leetcode/issues/1139)|48.70%|Medium| +|1138|[Alphabet Board Path](https://github.com/grandyang/leetcode/issues/1138)|51.60%|Medium| +|1137|[N-th Tribonacci Number](https://github.com/grandyang/leetcode/issues/1137)|55.70%|Easy| +|1136|Parallel Courses $|60.70%|Medium| +|1135|Connecting Cities With Minimum Cost $|60.00%|Easy| +|1134|Armstrong Number $|78.50%|Easy| +|1133|Largest Unique Number $|67.20%|Easy| +|1132|Reported Posts II * $|34.40%|Medium| +|1131|[Maximum of Absolute Value Expression](https://github.com/grandyang/leetcode/issues/1131)|51.30%|Medium| +|1130|[Minimum Cost Tree From Leaf Values](https://github.com/grandyang/leetcode/issues/1130)|67.40%|Medium| +|1129|[Shortest Path with Alternating Colors](https://github.com/grandyang/leetcode/issues/1129)|40.70%|Medium| +|1128|[Number of Equivalent Domino Pairs](https://github.com/grandyang/leetcode/issues/1128)|45.90%|Easy| +|1127|User Purchase Platform * $|50.80%|Hard| +|1126|Active Businesses * $|68.40%|Medium| +|1125|[Smallest Sufficient Team](https://github.com/grandyang/leetcode/issues/1125)|47.20%|Hard| +|1124|[Longest Well-Performing Interval](https://github.com/grandyang/leetcode/issues/1124)|33.50%|Medium| +|1123|[Lowest Common Ancestor of Deepest Leaves](https://github.com/grandyang/leetcode/issues/1123)|68.50%|Medium| +|1122|[Relative Sort Array](https://github.com/grandyang/leetcode/issues/1122)|67.90%|Easy| +|1121|Divide Array Into Increasing Sequences $|59.00%|Hard| +|1120|Maximum Average Subtree $|64.50%|Medium| +|1119|Remove Vowels from a String $|90.50%|Easy| +|1118|Number of Days in a Month $|57.30%|Easy| +|1117|Building H2O ~|53.10%|Medium| +|1116|Print Zero Even Odd ~|58.20%|Medium| +|1115|Print FooBar Alternately ~|59.00%|Medium| +|1114|Print in Order ~|67.60%|Easy| +|1113|Reported Posts * $|66.40%|Medium| +|1112|Highest Grade For Each Student * $|72.80%|Medium| +|1111|[Maximum Nesting Depth of Two Valid Parentheses Strings](https://github.com/grandyang/leetcode/issues/1111)|72.70%|Medium| +|1110|[Delete Nodes And Return Forest](https://github.com/grandyang/leetcode/issues/1110)|68.00%|Medium| +|1109|[Corporate Flight Bookings](https://github.com/grandyang/leetcode/issues/1109)|54.30%|Medium| +|1108|[Defanging an IP Address](https://github.com/grandyang/leetcode/issues/1108)|88.40%|Easy| +|1107|New Users Daily Count * $|46.10%|Medium| +|1106|[Parsing A Boolean Expression](https://github.com/grandyang/leetcode/issues/1106)|59.50%|Hard| +|1105|[Filling Bookcase Shelves](https://github.com/grandyang/leetcode/issues/1105)|57.50%|Medium| +|1104|[Path In Zigzag Labelled Binary Tree](https://github.com/grandyang/leetcode/issues/1104)|73.50%|Medium| +|1103|[Distribute Candies to People](https://github.com/grandyang/leetcode/issues/1103)|63.40%|Easy| +|1102|Path With Maximum Minimum Value $|51.00%|Medium| +|1101|The Earliest Moment When Everyone Become Friends $|67.80%|Medium| +|1100|Find K-Length Substrings With No Repeated Characters $|73.10%|Medium| +|1099|Two Sum Less Than K $|60.80%|Easy| +|1098|Unpopular Books * $|45.50%|Medium| +|1097|Game Play Analysis V * $|57.00%|Hard| +|1096|[Brace Expansion II](https://github.com/grandyang/leetcode/issues/1096)|62.90%|Hard| +|1095|[Find in Mountain Array](https://github.com/grandyang/leetcode/issues/1095)|36.10%|Hard| +|1094|[Car Pooling](https://github.com/grandyang/leetcode/issues/1094)|59.70%|Medium| +|1093|[Statistics from a Large Sample](https://github.com/grandyang/leetcode/issues/1093)|48.50%|Medium| +|1092|[Shortest Common Supersequence](https://github.com/grandyang/leetcode/issues/1092)|53.40%|Hard| +|1091|[Shortest Path in Binary Matrix](https://github.com/grandyang/leetcode/issues/1091)|40.30%|Medium| +|1090|[Largest Values From Labels](https://github.com/grandyang/leetcode/issues/1090)|60.10%|Medium| +|1089|[Duplicate Zeros](https://github.com/grandyang/leetcode/issues/1089)|51.60%|Easy| +|1088|[Confusing Number II](https://github.com/grandyang/leetcode/issues/1088)|45.60%|Hard| +|1087|Brace Expansion $|63.20%|Medium| +|1086|High Five $|77.50%|Easy| +|1085|Sum of Digits in the Minimum Number $|75.10%|Easy| +|1084|Sales Analysis III * $|54.80%|Easy| +|1083|Sales Analysis II * $|50.80%|Easy| +|1082|Sales Analysis I * $|73.90%|Easy| +|1081|[Smallest Subsequence of Distinct Characters](https://github.com/grandyang/leetcode/issues/1081)|53.60%|Medium| +|1080|[Insufficient Nodes in Root to Leaf Paths](https://github.com/grandyang/leetcode/issues/1080)|50.10%|Medium| +|1079|[Letter Tile Possibilities](https://github.com/grandyang/leetcode/issues/1079)|75.90%|Medium| +|1078|[Occurrences After Bigram](https://github.com/grandyang/leetcode/issues/1078)|65.00%|Easy| +|1077|Project Employees III * $|78.00%|Medium| +|1076|Project Employees II * $|52.80%|Easy| +|1075|Project Employees I * $|66.20%|Easy| +|1074|[Number of Submatrices That Sum to Target](https://github.com/grandyang/leetcode/issues/1074)|62.00%|Hard| +|1073|[Adding Two Negabinary Numbers](https://github.com/grandyang/leetcode/issues/1073)|34.80%|Medium| +|1072|[Flip Columns For Maximum Number of Equal Rows](https://github.com/grandyang/leetcode/issues/1072)|61.60%|Medium| +|1071|[Greatest Common Divisor of Strings](https://github.com/grandyang/leetcode/issues/1071)|51.50%|Easy| +|1070|Product Sales Analysis III * $|49.90%|Medium| +|1069|Product Sales Analysis II * $|83.30%|Easy| +|1068|Product Sales Analysis I * $|82.10%|Easy| +|1067|Digit Count in Range $|41.60%|Hard| +|1066|Campus Bikes II $|54.20%|Medium| +|1065|Index Pairs of a String $|61.00%|Easy| +|1064|Fixed Point $|64.90%|Easy| +|1063|Number of Valid Subarrays $|72.10%|Hard| +|1062|Longest Repeating Substring $|58.40%|Medium| +|1061|Lexicographically Smallest Equivalent String $|66.90%|Medium| +|1060|Missing Element in Sorted Array $|54.80%|Medium| +|1059|All Paths from Source Lead to Destination $|43.00%|Medium| +|1058|Minimize Rounding Error to Meet Target $|43.70%|Medium| +|1057|[Campus Bikes ](https://github.com/grandyang/leetcode/issues/1057) $|57.80%|Medium| +|1056|[Confusing Number ](https://github.com/grandyang/leetcode/issues/1056) $|47.00%|Easy| +|1055|[Shortest Way to Form String ](https://github.com/grandyang/leetcode/issues/1055) $|57.20%|Medium| +|1054|[Distant Barcodes](https://github.com/grandyang/leetcode/issues/1054)|44.20%|Medium| +|1053|[Previous Permutation With One Swap](https://github.com/grandyang/leetcode/issues/1053)|51.20%|Medium| +|1052|[Grumpy Bookstore Owner](https://github.com/grandyang/leetcode/issues/1052)|55.90%|Medium| +|1051|[Height Checker](https://github.com/grandyang/leetcode/issues/1051)|72.10%|Easy| +|1050|Actors and Directors Who Cooperated At Least Three Times * $|72.40%|Easy| +|1049|[Last Stone Weight II](https://github.com/grandyang/leetcode/issues/1049)|45.40%|Medium| +|1048|[Longest String Chain](https://github.com/grandyang/leetcode/issues/1048)|55.50%|Medium| +|1047|[Remove All Adjacent Duplicates In String](https://github.com/grandyang/leetcode/issues/1047)|70.90%|Easy| +|1046|[Last Stone Weight](https://github.com/grandyang/leetcode/issues/1046)|62.40%|Easy| +|1045|Customers Who Bought All Products * $|68.40%|Medium| +|1044|[Longest Duplicate Substring](https://github.com/grandyang/leetcode/issues/1044)|31.40%|Hard| +|1043|[Partition Array for Maximum Sum](https://github.com/grandyang/leetcode/issues/1043)|67.10%|Medium| +|1042|[Flower Planting With No Adjacent](https://github.com/grandyang/leetcode/issues/1042)|48.80%|Medium| +|1041|[Robot Bounded In Circle](https://github.com/grandyang/leetcode/issues/1041)|55.00%|Medium| +|1040|[Moving Stones Until Consecutive II](https://github.com/grandyang/leetcode/issues/1040)|54.10%|Medium| +|1039|[Minimum Score Triangulation of Polygon](https://github.com/grandyang/leetcode/issues/1039)|50.10%|Medium| +|1038|[Binary Search Tree to Greater Sum Tree](https://github.com/grandyang/leetcode/issues/1038)|82.30%|Medium| +|1037|[Valid Boomerang](https://github.com/grandyang/leetcode/issues/1037)|37.80%|Easy| +|1036|[Escape a Large Maze](https://github.com/grandyang/leetcode/issues/1036)|34.50%|Hard| +|1035|[Uncrossed Lines](https://github.com/grandyang/leetcode/issues/1035)|56.10%|Medium| +|1034|[Coloring A Border](https://github.com/grandyang/leetcode/issues/1034)|45.70%|Medium| +|1033|[Moving Stones Until Consecutive](https://github.com/grandyang/leetcode/issues/1033)|43.20%|Easy| +|1032|[Stream of Characters](https://github.com/grandyang/leetcode/issues/1032)|48.60%|Hard| +|1031|[Maximum Sum of Two Non-Overlapping Subarrays](https://github.com/grandyang/leetcode/issues/1031)|58.90%|Medium| +|1030|[Matrix Cells in Distance Order](https://github.com/grandyang/leetcode/issues/1030)|66.90%|Easy| +|1029|[Two City Scheduling](https://github.com/grandyang/leetcode/issues/1029)|57.90%|Medium| +|1028|[Recover a Tree From Preorder Traversal](https://github.com/grandyang/leetcode/issues/1028)|70.90%|Hard| +|1027|[Longest Arithmetic Subsequence](https://github.com/grandyang/leetcode/issues/1027)|49.80%|Medium| +|1026|[Maximum Difference Between Node and Ancestor](https://github.com/grandyang/leetcode/issues/1026)|69.40%|Medium| +|1025|[Divisor Game](https://github.com/grandyang/leetcode/issues/1025)|66.20%|Easy| +|1024|[Video Stitching](https://github.com/grandyang/leetcode/issues/1024)|49.00%|Medium| +|1023|[Camelcase Matching](https://github.com/grandyang/leetcode/issues/1023)|57.40%|Medium| +|1022|[Sum of Root To Leaf Binary Numbers](https://github.com/grandyang/leetcode/issues/1022)|71.50%|Easy| +|1021|[Remove Outermost Parentheses](https://github.com/grandyang/leetcode/issues/1021)|79.00%|Easy| +|1020|[Number of Enclaves](https://github.com/grandyang/leetcode/issues/1020)|58.90%|Medium| +|1019|[Next Greater Node In Linked List](https://github.com/grandyang/leetcode/issues/1019)|58.20%|Medium| +|1018|[Binary Prefix Divisible By 5](https://github.com/grandyang/leetcode/issues/1018)|47.80%|Easy| +|1017|[Convert to Base -2](https://github.com/grandyang/leetcode/issues/1017)|59.60%|Medium| +|1016|[Binary String With Substrings Representing 1 To N](https://github.com/grandyang/leetcode/issues/1016)|58.90%|Medium| +|1015|[Smallest Integer Divisible by K](https://github.com/grandyang/leetcode/issues/1015)|41.80%|Medium| +|1014|[Best Sightseeing Pair](https://github.com/grandyang/leetcode/issues/1014)|52.90%|Medium| +|1013|[Partition Array Into Three Parts With Equal Sum](https://github.com/grandyang/leetcode/issues/1013)|49.10%|Easy| +|1012|[Numbers With Repeated Digits](https://github.com/grandyang/leetcode/issues/1012)|37.80%|Hard| +|1011|[Capacity To Ship Packages Within D Days](https://github.com/grandyang/leetcode/issues/1011)|59.70%|Medium| +|1010|[Pairs of Songs With Total Durations Divisible by 60](https://github.com/grandyang/leetcode/issues/1010)|50.10%|Medium| +|1009|[Complement of Base 10 Integer](https://github.com/grandyang/leetcode/issues/1009)|61.50%|Easy| +|1008|[Construct Binary Search Tree from Preorder Traversal](https://github.com/grandyang/leetcode/issues/1008)|78.80%|Medium| +|1007|[Minimum Domino Rotations For Equal Row](https://github.com/grandyang/leetcode/issues/1007)|50.90%|Medium| +|1006|[Clumsy Factorial](https://github.com/grandyang/leetcode/issues/1006)|53.70%|Medium| +|1005|[Maximize Sum Of Array After K Negations](https://github.com/grandyang/leetcode/issues/1005)|52.40%|Easy| +|1004|[Max Consecutive Ones III](https://github.com/grandyang/leetcode/issues/1004)|60.50%|Medium| +|1003|[Check If Word Is Valid After Substitutions](https://github.com/grandyang/leetcode/issues/1003)|56.10%|Medium| +|1002|[Find Common Characters](https://github.com/grandyang/leetcode/issues/1002)|68.10%|Easy| +|1001|[Grid Illumination](https://github.com/grandyang/leetcode/issues/1001)|36.60%|Hard| +|1000|[Minimum Cost to Merge Stones](https://github.com/grandyang/leetcode/issues/1000)|40.40%|Hard| +|999|[Available Captures for Rook](https://github.com/grandyang/leetcode/issues/999)|66.80%|Easy| +|998|[Maximum Binary Tree II](https://github.com/grandyang/leetcode/issues/998)|63.70%|Medium| +|997|[Find the Town Judge](https://github.com/grandyang/leetcode/issues/997)|49.80%|Easy| +|996|[Number of Squareful Arrays](https://github.com/grandyang/leetcode/issues/996)|48.00%|Hard| +|995|[Minimum Number of K Consecutive Bit Flips](https://github.com/grandyang/leetcode/issues/995)|49.60%|Hard| +|994|[Rotting Oranges](https://github.com/grandyang/leetcode/issues/994)|49.60%|Medium| +|993|[Cousins in Binary Tree](https://github.com/grandyang/leetcode/issues/993)|52.20%|Easy| +|992|[Subarrays with K Different Integers](https://github.com/grandyang/leetcode/issues/992)|50.40%|Hard| +|991|[Broken Calculator](https://github.com/grandyang/leetcode/issues/991)|46.40%|Medium| +|990|[Satisfiability of Equality Equations](https://github.com/grandyang/leetcode/issues/990)|46.50%|Medium| +|989|[Add to Array-Form of Integer](https://github.com/grandyang/leetcode/issues/989)|44.70%|Easy| +|988|[Smallest String Starting From Leaf](https://github.com/grandyang/leetcode/issues/988)|46.60%|Medium| +|987|[Vertical Order Traversal of a Binary Tree](https://github.com/grandyang/leetcode/issues/987)|37.60%|Medium| +|986|[Interval List Intersections](https://github.com/grandyang/leetcode/issues/986)|68.10%|Medium| +|985|[Sum of Even Numbers After Queries](https://github.com/grandyang/leetcode/issues/985)|60.70%|Easy| +|984|[String Without AAA or BBB](https://github.com/grandyang/leetcode/issues/984)|38.50%|Medium| +|983|[Minimum Cost For Tickets](https://github.com/grandyang/leetcode/issues/983)|62.60%|Medium| +|982|[Triples with Bitwise AND Equal To Zero](https://github.com/grandyang/leetcode/issues/982)|56.10%|Hard| +|981|[Time Based Key-Value Store](https://github.com/grandyang/leetcode/issues/981)|54.00%|Medium| +|980|[Unique Paths III](https://github.com/grandyang/leetcode/issues/980)|77.10%|Hard| +|979|[Distribute Coins in Binary Tree](https://github.com/grandyang/leetcode/issues/979)|69.30%|Medium| +|978|[Longest Turbulent Subarray](https://github.com/grandyang/leetcode/issues/978)|46.60%|Medium| +|977|[Squares of a Sorted Array](https://github.com/grandyang/leetcode/issues/977)|72.40%|Easy| +|976|[Largest Perimeter Triangle](https://github.com/grandyang/leetcode/issues/976)|58.50%|Easy| +|975|[Odd Even Jump](https://github.com/grandyang/leetcode/issues/975)|41.70%|Hard| +|974|[Subarray Sums Divisible by K](https://github.com/grandyang/leetcode/issues/974)|50.30%|Medium| +|973|[K Closest Points to Origin](https://github.com/grandyang/leetcode/issues/973)|64.40%|Medium| +|972|[Equal Rational Numbers](https://github.com/grandyang/leetcode/issues/972)|41.80%|Hard| +|971|[Flip Binary Tree To Match Preorder Traversal](https://github.com/grandyang/leetcode/issues/971)|46.10%|Medium| +|970|[Powerful Integers](https://github.com/grandyang/leetcode/issues/970)|39.90%|Easy| +|969|[Pancake Sorting](https://github.com/grandyang/leetcode/issues/969)|68.40%|Medium| +|968|[Binary Tree Cameras](https://github.com/grandyang/leetcode/issues/968)|38.40%|Hard| +|967|[Numbers With Same Consecutive Differences](https://github.com/grandyang/leetcode/issues/967)|44.30%|Medium| +|966|[Vowel Spellchecker](https://github.com/grandyang/leetcode/issues/966)|47.70%|Medium| +|965|[Univalued Binary Tree](https://github.com/grandyang/leetcode/issues/965)|67.60%|Easy| +|964|[Least Operators to Express Number](https://github.com/grandyang/leetcode/issues/964)|44.70%|Hard| +|963|[Minimum Area Rectangle II](https://github.com/grandyang/leetcode/issues/963)|51.60%|Medium| +|962|[Maximum Width Ramp](https://github.com/grandyang/leetcode/issues/962)|46.00%|Medium| +|961|[N-Repeated Element in Size 2N Array](https://github.com/grandyang/leetcode/issues/961)|74.20%|Easy| +|960|[Delete Columns to Make Sorted III](https://github.com/grandyang/leetcode/issues/960)|54.00%|Hard| +|959|[Regions Cut By Slashes](https://github.com/grandyang/leetcode/issues/959)|66.70%|Medium| +|958|[Check Completeness of a Binary Tree](https://github.com/grandyang/leetcode/issues/958)|52.30%|Medium| +|957|[Prison Cells After N Days](https://github.com/grandyang/leetcode/issues/957)|40.30%|Medium| +|956|[Tallest Billboard](https://github.com/grandyang/leetcode/issues/956)|39.70%|Hard| +|955|[Delete Columns to Make Sorted II](https://github.com/grandyang/leetcode/issues/955)|33.40%|Medium| +|954|[Array of Doubled Pairs](https://github.com/grandyang/leetcode/issues/954)|35.30%|Medium| +|953|[Verifying an Alien Dictionary](https://github.com/grandyang/leetcode/issues/953)|52.90%|Easy| +|952|[Largest Component Size by Common Factor](https://github.com/grandyang/leetcode/issues/952)|36.00%|Hard| +|951|[Flip Equivalent Binary Trees](https://github.com/grandyang/leetcode/issues/951)|65.50%|Medium| +|950|[Reveal Cards In Increasing Order](https://github.com/grandyang/leetcode/issues/950)|75.00%|Medium| +|949|[Largest Time for Given Digits](https://github.com/grandyang/leetcode/issues/949)|36.30%|Medium| +|948|[Bag of Tokens](https://github.com/grandyang/leetcode/issues/948)|46.20%|Medium| +|947|[Most Stones Removed with Same Row or Column](https://github.com/grandyang/leetcode/issues/947)|55.30%|Medium| +|946|[Validate Stack Sequences](https://github.com/grandyang/leetcode/issues/946)|63.10%|Medium| +|945|[Minimum Increment to Make Array Unique](https://github.com/grandyang/leetcode/issues/945)|46.50%|Medium| +|944|[Delete Columns to Make Sorted](https://github.com/grandyang/leetcode/issues/944)|70.90%|Easy| +|943|[Find the Shortest Superstring](https://github.com/grandyang/leetcode/issues/943)|43.20%|Hard| +|942|[DI String Match](https://github.com/grandyang/leetcode/issues/942)|73.20%|Easy| +|941|[Valid Mountain Array](https://github.com/grandyang/leetcode/issues/941)|32.20%|Easy| +|940|[Distinct Subsequences II](https://github.com/grandyang/leetcode/issues/940)|41.50%|Hard| +|939|[Minimum Area Rectangle](https://github.com/grandyang/leetcode/issues/939)|52.00%|Medium| +|938|[Range Sum of BST](https://github.com/grandyang/leetcode/issues/938)|79.90%|Easy| +|937|[Reorder Data in Log Files](https://github.com/grandyang/leetcode/issues/937)|53.70%|Easy| +|936|[Stamping The Sequence](https://github.com/grandyang/leetcode/issues/936)|38.10%|Hard| +|935|[Knight Dialer](https://github.com/grandyang/leetcode/issues/935)|43.80%|Medium| +|934|[Shortest Bridge](https://github.com/grandyang/leetcode/issues/934)|46.50%|Medium| +|933|[Number of Recent Calls](https://github.com/grandyang/leetcode/issues/933)|70.90%|Easy| +|932|[Beautiful Array](https://github.com/grandyang/leetcode/issues/932)|57.10%|Medium| +|931|[Minimum Falling Path Sum](https://github.com/grandyang/leetcode/issues/931)|61.30%|Medium| +|930|[Binary Subarrays With Sum](https://github.com/grandyang/leetcode/issues/930)|41.40%|Medium| +|929|[Unique Email Addresses](https://github.com/grandyang/leetcode/issues/929)|67.60%|Easy| +|928|[Minimize Malware Spread II](https://github.com/grandyang/leetcode/issues/928)|40.10%|Hard| +|927|[Three Equal Parts](https://github.com/grandyang/leetcode/issues/927)|32.80%|Hard| +|926|[Flip String to Monotone Increasing](https://github.com/grandyang/leetcode/issues/926)|51.60%|Medium| +|925|[Long Pressed Name](https://github.com/grandyang/leetcode/issues/925)|45.00%|Easy| +|924|[Minimize Malware Spread](https://github.com/grandyang/leetcode/issues/924)|41.70%|Hard| +|923|[3Sum With Multiplicity](https://github.com/grandyang/leetcode/issues/923)|35.30%|Medium| +|922|[Sort Array By Parity II](https://github.com/grandyang/leetcode/issues/922)|68.30%|Easy| +|921|[Minimum Add to Make Parentheses Valid](https://github.com/grandyang/leetcode/issues/921)|72.30%|Medium| +|920|[Number of Music Playlists](https://github.com/grandyang/leetcode/issues/920)|45.70%|Hard| +|919|[Complete Binary Tree Inserter](https://github.com/grandyang/leetcode/issues/919)|55.70%|Medium| +|918|[Maximum Sum Circular Subarray](https://github.com/grandyang/leetcode/issues/918)|33.20%|Medium| +|917|[Reverse Only Letters](https://github.com/grandyang/leetcode/issues/917)|56.30%|Easy| +|916|[Word Subsets](https://github.com/grandyang/leetcode/issues/916)|45.90%|Medium| +|915|[Partition Array into Disjoint Intervals](https://github.com/grandyang/leetcode/issues/915)|43.90%|Medium| +|914|[X of a Kind in a Deck of Cards](https://github.com/grandyang/leetcode/issues/914)|34.00%|Easy| +|913|[Cat and Mouse](https://github.com/grandyang/leetcode/issues/913)|29.90%|Hard| +|912|[Sort an Array](https://github.com/grandyang/leetcode/issues/912)|62.90%|Medium| +|911|[Online Election](https://github.com/grandyang/leetcode/issues/911)|48.30%|Medium| +|910|[Smallest Range II](https://github.com/grandyang/leetcode/issues/910)|24.90%|Medium| +|909|[Snakes and Ladders](https://github.com/grandyang/leetcode/issues/909)|36.10%|Easy| +|908|[Smallest Range I](https://github.com/grandyang/leetcode/issues/908)|65.00%|Easy| +|907|[Sum of Subarray Minimums](https://github.com/grandyang/leetcode/issues/907)|29.40%|Medium| +|906|[Super Palindromes](https://github.com/grandyang/leetcode/issues/906)|30.80%|Hard| +|905|[Sort Array By Parity](https://github.com/grandyang/leetcode/issues/905)|72.60%|Easy| +|904|[Fruit Into Baskets](https://github.com/grandyang/leetcode/issues/904)|41.70%|Medium| +|903|[Valid Permutations for DI Sequence](https://github.com/grandyang/leetcode/issues/903)|45.10%|Hard| +|902|[Numbers At Most N Given Digit Set](https://github.com/grandyang/leetcode/issues/902)|28.80%|Hard| +|901|[Online Stock Span](https://github.com/grandyang/leetcode/issues/901)|49.90%|Medium| +|900|[RLE Iterator](https://github.com/grandyang/leetcode/issues/900)|50.50%|Medium| +|899|[Orderly Queue](https://github.com/grandyang/leetcode/issues/899)|47.70%|Hard| +|898|[Bitwise ORs of Subarrays](https://github.com/grandyang/leetcode/issues/898)|34.70%|Medium| +|897|[Increasing Order Search Tree](https://github.com/grandyang/leetcode/issues/897)|65.20%|Easy| +|896|[Monotonic Array](https://github.com/grandyang/leetcode/issues/896)|55.40%|Easy| +|895|[Maximum Frequency Stack](https://github.com/grandyang/leetcode/issues/895)|56.70%|Hard| +|894|[All Possible Full Binary Trees](https://github.com/grandyang/leetcode/issues/894)|71.30%|Medium| +|893|[Groups of Special-Equivalent Strings](https://github.com/grandyang/leetcode/issues/893)|63.00%|Easy| +|892|[Surface Area of 3D Shapes](https://github.com/grandyang/leetcode/issues/892)|56.10%|Easy| +|891|[Sum of Subsequence Widths](https://github.com/grandyang/leetcode/issues/891)|29.20%|Hard| +|890|[Find and Replace Pattern](https://github.com/grandyang/leetcode/issues/890)|71.30%|Medium| +|889|[Construct Binary Tree from Preorder and Postorder Traversal](https://github.com/grandyang/leetcode/issues/889)|60.70%|Medium| +|888|[Fair Candy Swap](https://github.com/grandyang/leetcode/issues/888)|56.90%|Easy| +|887|[Super Egg Drop](https://github.com/grandyang/leetcode/issues/887)|24.90%|Hard| +|886|[Possible Bipartition](https://github.com/grandyang/leetcode/issues/886)|40.90%|Medium| +|885|[Spiral Matrix III](https://github.com/grandyang/leetcode/issues/885)|64.80%|Medium| +|884|[Uncommon Words from Two Sentences](https://github.com/grandyang/leetcode/issues/884)|60.90%|Easy| +|883|[Projection Area of 3D Shapes](https://github.com/grandyang/leetcode/issues/883)|65.90%|Easy| +|882|[Reachable Nodes In Subdivided Graph](https://github.com/grandyang/leetcode/issues/882)|38.20%|Hard| +|881|[Boats to Save People](https://github.com/grandyang/leetcode/issues/881)|44.10%|Medium| +|880|[Decoded String at Index](https://github.com/grandyang/leetcode/issues/880)|23.00%|Medium| +|879|[Profitable Schemes](https://github.com/grandyang/leetcode/issues/879)|36.20%|Hard| +|878|[Nth Magical Number](https://github.com/grandyang/leetcode/issues/878)|25.40%|Hard| +|877|[Stone Game](https://github.com/grandyang/leetcode/issues/877)|61.10%|Medium| +|876|[Middle of the Linked List](https://github.com/grandyang/leetcode/issues/876)|63.80%|Easy| +|875|[Koko Eating Bananas](https://github.com/grandyang/leetcode/issues/875)|45.90%|Medium| +|874|[Walking Robot Simulation](https://github.com/grandyang/leetcode/issues/874)|31.70%|Easy| +|873|[Length of Longest Fibonacci Subsequence](https://github.com/grandyang/leetcode/issues/873)|46.00%|Medium| +|872|[Leaf-Similar Trees](https://github.com/grandyang/leetcode/issues/872)|63.10%|Easy| +|871|[Minimum Number of Refueling Stops](https://github.com/grandyang/leetcode/issues/871)|28.70%|Hard| +|870|[Advantage Shuffle](https://github.com/grandyang/leetcode/issues/870)|42.20%|Medium| +|869|[Reordered Power of 2](https://github.com/grandyang/leetcode/issues/869)|50.60%|Medium| +|868|[Binary Gap](https://github.com/grandyang/leetcode/issues/868)|59.30%|Easy| +|867|[Transpose Matrix](https://github.com/grandyang/leetcode/issues/867)|63.90%|Easy| +|866|[Prime Palindrome](https://github.com/grandyang/leetcode/issues/866)|20.00%|Medium| +|865|[Smallest Subtree with all the Deepest Nodes](https://github.com/grandyang/leetcode/issues/865)|55.40%|Medium| +|864|[Shortest Path to Get All Keys](https://github.com/grandyang/leetcode/issues/864)|35.70%|Hard| +|863|[All Nodes Distance K in Binary Tree](https://github.com/grandyang/leetcode/issues/863)|46.80%|Medium| +|862|[Shortest Subarray with Sum at Least K](https://github.com/grandyang/leetcode/issues/862)|22.00%|Hard| +|861|[Score After Flipping Matrix](https://github.com/grandyang/leetcode/issues/861)|69.30%|Medium| +|860|[Lemonade Change](https://github.com/grandyang/leetcode/issues/860)|50.20%|Easy| +|859|[Buddy Strings](https://github.com/grandyang/leetcode/issues/859)|27.60%|Easy| +|858|[Mirror Reflection](https://github.com/grandyang/leetcode/issues/858)|52.00%|Medium| +|857|[Minimum Cost to Hire K Workers](https://github.com/grandyang/leetcode/issues/857)|47.30%|Hard| +|856|[Score of Parentheses](https://github.com/grandyang/leetcode/issues/856)|55.90%|Medium| +|855|[Exam Room](https://github.com/grandyang/leetcode/issues/855)|38.10%|Medium| +|854|[K-Similar Strings](https://github.com/grandyang/leetcode/issues/854)|33.20%|Hard| +|853|[Car Fleet](https://github.com/grandyang/leetcode/issues/853)|39.30%|Medium| +|852|[Peak Index in a Mountain Array](https://github.com/grandyang/leetcode/issues/852)|68.50%|Easy| +|851|[Loud and Rich](https://github.com/grandyang/leetcode/issues/851)|47.40%|Medium| +|850|[Rectangle Area II](https://github.com/grandyang/leetcode/issues/850)|44.00%|Hard| +|849|[Maximize Distance to Closest Person](https://github.com/grandyang/leetcode/issues/849)|40.40%|Easy| +|848|[Shifting Letters](https://github.com/grandyang/leetcode/issues/848)|39.90%|Medium| +|847|[Shortest Path Visiting All Nodes](https://github.com/grandyang/leetcode/issues/847)|45.90%|Hard| +|846|[Hand of Straights](https://github.com/grandyang/leetcode/issues/846)|48.60%|Medium| +|845|[Longest Mountain in Array](https://github.com/grandyang/leetcode/issues/845)|34.00%|Medium| +|844|[Backspace String Compare](https://github.com/grandyang/leetcode/issues/844)|45.50%|Easy| +|843|[Guess the Word](https://github.com/grandyang/leetcode/issues/843)|42.60%|Hard| +|842|[Split Array into Fibonacci Sequence](https://github.com/grandyang/leetcode/issues/842)|34.60%|Medium| +|841|[Keys and Rooms](https://github.com/grandyang/leetcode/issues/841)|59.70%|Medium| +|840|[Magic Squares In Grid](https://github.com/grandyang/leetcode/issues/840)|35.10%|Easy| +|839|[Similar String Groups](https://github.com/grandyang/leetcode/issues/839)|33.50%|Hard| +|838|[Push Dominoes](https://github.com/grandyang/leetcode/issues/838)|42.80%|Medium| +|837|[New 21 Game](https://github.com/grandyang/leetcode/issues/837)|29.50%|Medium| +|836|[Rectangle Overlap](https://github.com/grandyang/leetcode/issues/836)|45.50%|Easy| +|835|[Image Overlap](https://github.com/grandyang/leetcode/issues/835)|50.30%|Medium| +|834|[Sum of Distances in Tree](https://github.com/grandyang/leetcode/issues/834)|38.10%|Hard| +|833|[Find And Replace in String](https://github.com/grandyang/leetcode/issues/833)|44.50%|Medium| +|832|[Flipping an Image](https://github.com/grandyang/leetcode/issues/832)|71.30%|Easy| +|831|[Masking Personal Information](https://github.com/grandyang/leetcode/issues/831)|41.50%|Medium| +|830|[Positions of Large Groups](https://github.com/grandyang/leetcode/issues/830)|47.40%|Easy| +|829|[Consecutive Numbers Sum](https://github.com/grandyang/leetcode/issues/829)|32.10%|Hard| +|828|[Unique Letter String](https://github.com/grandyang/leetcode/issues/828)|38.10%|Hard| +|827|[Making A Large Island](https://github.com/grandyang/leetcode/issues/827)|42.10%|Hard| +|826|[Most Profit Assigning Work](https://github.com/grandyang/leetcode/issues/826)|34.70%|Medium| +|825|[Friends Of Appropriate Ages](https://github.com/grandyang/leetcode/issues/825)|35.00%|Medium| +|824|[Goat Latin](https://github.com/grandyang/leetcode/issues/824)|56.70%|Easy| +|823|[Binary Trees With Factors](https://github.com/grandyang/leetcode/issues/823)|31.50%|Medium| +|822|[Card Flipping Game](https://github.com/grandyang/leetcode/issues/822)|39.70%|Medium| +|821|[Shortest Distance to a Character](https://github.com/grandyang/leetcode/issues/821)|62.60%|Easy| +|820|[Short Encoding of Words](https://github.com/grandyang/leetcode/issues/820)|46.00%|Medium| +|819|[Most Common Word](https://github.com/grandyang/leetcode/issues/819)|41.50%|Easy| +|818|[Race Car](https://github.com/grandyang/leetcode/issues/818)|34.00%|Hard| +|817|[Linked List Components](https://github.com/grandyang/leetcode/issues/817)|51.90%|Medium| +|816|[Ambiguous Coordinates](https://github.com/grandyang/leetcode/issues/816)|42.40%|Medium| +|815|[Bus Routes](https://github.com/grandyang/leetcode/issues/815)|36.10%|Hard| +|814|[Binary Tree Pruning](https://github.com/grandyang/leetcode/issues/814)|68.30%|Medium| +|813|[Largest Sum of Averages](https://github.com/grandyang/leetcode/issues/813)|42.40%|Medium| +|812|[Largest Triangle Area](https://github.com/grandyang/leetcode/issues/812)|53.80%|Easy| +|811|[Subdomain Visit Count](https://github.com/grandyang/leetcode/issues/811)|61.50%|Easy| +|810|[Chalkboard XOR Game](https://github.com/grandyang/leetcode/issues/810)|41.90%|Hard| +|809|[Expressive Words](https://github.com/grandyang/leetcode/issues/809)|39.50%|Medium| +|808|[Soup Servings](https://github.com/grandyang/leetcode/issues/808)|33.60%|Medium| +|807|[Max Increase to Keep City Skyline](https://github.com/grandyang/leetcode/issues/807)|79.60%|Medium| +|806|[Number of Lines To Write String](https://github.com/grandyang/leetcode/issues/806)|62.10%|Easy| +|805|[Split Array With Same Average](https://github.com/grandyang/leetcode/issues/805)|21.00%|Hard| +|804|[Unique Morse Code Words](https://github.com/grandyang/leetcode/issues/804)|71.30%|Easy| +|803|[Bricks Falling When Hit](https://github.com/grandyang/leetcode/issues/803)|22.90%|Hard| +|802|[Find Eventual Safe States](https://github.com/grandyang/leetcode/issues/802)|39.20%|Medium| +|801|[Minimum Swaps To Make Sequences Increasing](https://github.com/grandyang/leetcode/issues/801)|31.00%|Medium| +|800|[Similar RGB Color](https://github.com/grandyang/leetcode/issues/800) $|54.50%|Easy| +|799|[Champagne Tower](https://github.com/grandyang/leetcode/issues/799)|29.90%|Medium| +|798|[Smallest Rotation with Highest Score](https://github.com/grandyang/leetcode/issues/798)|34.30%|Hard| +|797|[All Paths From Source to Target](https://github.com/grandyang/leetcode/issues/797)|67.40%|Medium| +|796|[Rotate String](https://github.com/grandyang/leetcode/issues/796)|49.60%|Easy| +|795|[Number of Subarrays with Bounded Maximum](https://github.com/grandyang/leetcode/issues/795)|41.60%|Medium| +|794|[Valid Tic-Tac-Toe State](https://github.com/grandyang/leetcode/issues/794)|27.80%|Medium| +|793|[Preimage Size of Factorial Zeroes Function](https://github.com/grandyang/leetcode/issues/793)|40.80%|Hard| +|792|[Number of Matching Subsequences](https://github.com/grandyang/leetcode/issues/792)|37.30%|Medium| +|791|[Custom Sort String](https://github.com/grandyang/leetcode/issues/791)|59.40%|Medium| +|790|[Domino and Tromino Tiling](https://github.com/grandyang/leetcode/issues/790)|32.80%|Medium| +|789|[Escape The Ghosts](https://github.com/grandyang/leetcode/issues/789)|51.00%|Medium| +|788|[Rotated Digits](https://github.com/grandyang/leetcode/issues/788)|51.00%|Easy| +|787|[Cheapest Flights Within K Stops](https://github.com/grandyang/leetcode/issues/787)|29.90%|Medium| +|786|[K-th Smallest Prime Fraction](https://github.com/grandyang/leetcode/issues/786)|32.50%|Hard| +|785|[Is Graph Bipartite](https://github.com/grandyang/leetcode/issues/785)|38.50%|Medium| +|784|[Letter Case Permutation](https://github.com/grandyang/leetcode/issues/784)|53.00%|Easy| +|783|[Minimum Distance Between BST Nodes](https://github.com/grandyang/leetcode/issues/783)|47.80%|Easy| +|782|[Transform to Chessboard](https://github.com/grandyang/leetcode/issues/782)|37.50%|Hard| +|781|[Rabbits in Forest](https://github.com/grandyang/leetcode/issues/781)|49.80%|Medium| +|780|[Reaching Points](https://github.com/grandyang/leetcode/issues/780)|23.90%|Hard| +|779|[K-th Symbol in Grammar](https://github.com/grandyang/leetcode/issues/779)|37.30%|Medium| +|778|[Swim in Rising Water](https://github.com/grandyang/leetcode/issues/778)|44.60%|Hard| +|777|[Swap Adjacent in LR String](https://github.com/grandyang/leetcode/issues/777)|28.90%|Medium| +|776|[Split BST](https://github.com/grandyang/leetcode/issues/776) $|49.90%|Medium| +|775|[Global and Local Inversions](https://github.com/grandyang/leetcode/issues/775)|33.60%|Medium| +|774|[Minimize Max Distance to Gas Station](https://github.com/grandyang/leetcode/issues/774) $|32.80%|Hard| +|773|[Sliding Puzzle](https://github.com/grandyang/leetcode/issues/773)|46.50%|Hard| +|772|[Basic Calculator III](https://github.com/grandyang/leetcode/issues/772) $|40.10%|Hard| +|771|[Jewels and Stones](https://github.com/grandyang/leetcode/issues/771)|81.90%|Easy| |770|Basic Calculator IV|42.10%|Hard| -|769|[Max Chunks To Make Sorted](https://github.com/grandyang/LeetCode-All-In-One/issues/769)|48.00%|Medium| -|768|[Max Chunks To Make Sorted II](https://github.com/grandyang/LeetCode-All-In-One/issues/768)|43.20%|Hard| -|767|[Reorganize String](https://github.com/grandyang/LeetCode-All-In-One/issues/767)|36.50%|Medium| -|766|[Toeplitz Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/766)|57.90%|Easy| -|765|[Couples Holding Hands](https://github.com/grandyang/LeetCode-All-In-One/issues/765)|48.50%|Hard| -|764|[Largest Plus Sign](https://github.com/grandyang/LeetCode-All-In-One/issues/764)|39.20%|Medium| -|763|[Partition Labels](https://github.com/grandyang/LeetCode-All-In-One/issues/763)|64.10%|Medium| -|762|[Prime Number of Set Bits in Binary Representation](https://github.com/grandyang/LeetCode-All-In-One/issues/762)|55.00%|Easy| -|761|[Special Binary String](https://github.com/grandyang/LeetCode-All-In-One/issues/761)|41.00%|Hard| -|760|[Find Anagram Mappings](https://github.com/grandyang/LeetCode-All-In-One/issues/760) $|75.60%|Easy| -|759|[Employee Free Time](https://github.com/grandyang/LeetCode-All-In-One/issues/759) $|51.90%|Hard| -|758|[Bold Words in String](https://github.com/grandyang/LeetCode-All-In-One/issues/758) $|37.90%|Easy| -|757|[Set Intersection Size At Least Two](https://github.com/grandyang/LeetCode-All-In-One/issues/757)|34.60%|Hard| -|756|[Pyramid Transition Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/756)|45.50%|Medium| -|755|[Pour Water](https://github.com/grandyang/LeetCode-All-In-One/issues/755) $|34.00%|Medium| -|754|[Reach a Number](https://github.com/grandyang/LeetCode-All-In-One/issues/754)|26.10%|Medium| -|753|[Cracking the Safe](https://github.com/grandyang/LeetCode-All-In-One/issues/753)|39.70%|Hard| -|752|[Open the Lock](https://github.com/grandyang/LeetCode-All-In-One/issues/752)|38.20%|Medium| -|751|[IP to CIDR](https://github.com/grandyang/LeetCode-All-In-One/issues/751) $|54.80%|Easy| -|750|[Number Of Corner Rectangles](https://github.com/grandyang/LeetCode-All-In-One/issues/750) $|51.00%|Medium| -|749|[Contain Virus](https://github.com/grandyang/LeetCode-All-In-One/issues/749)|39.60%|Hard| -|748|[Shortest Completing Word](https://github.com/grandyang/LeetCode-All-In-One/issues/748)|53.50%|Medium| -|747|[Largest Number At Least Twice of Others](https://github.com/grandyang/LeetCode-All-In-One/issues/747)|42.60%|Easy| -|746|[Min Cost Climbing Stairs](https://github.com/grandyang/LeetCode-All-In-One/issues/746)|43.60%|Easy| -|745|[Prefix and Suffix Search](https://github.com/grandyang/LeetCode-All-In-One/issues/745)|24.50%|Hard| -|744|[Find Smallest Letter Greater Than Target](https://github.com/grandyang/LeetCode-All-In-One/issues/744)|45.30%|Easy| -|743|[Network Delay Time](https://github.com/grandyang/LeetCode-All-In-One/issues/743)|34.30%|Medium| -|742|[Closest Leaf in a Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/742) $|33.20%|Medium| -|741|[Cherry Pickup](https://github.com/grandyang/LeetCode-All-In-One/issues/741)|22.50%|Hard| -|740|[Delete and Earn](https://github.com/grandyang/LeetCode-All-In-One/issues/740)|42.60%|Medium| -|739|[Daily Temperatures](https://github.com/grandyang/LeetCode-All-In-One/issues/739)|53.50%|Medium| -|738|[Monotone Increasing Digits](https://github.com/grandyang/LeetCode-All-In-One/issues/738)|41.80%|Medium| -|737|[Sentence Similarity II](https://github.com/grandyang/LeetCode-All-In-One/issues/737) $|41.20%|Medium| -|736|[Parse Lisp Expression](https://github.com/grandyang/LeetCode-All-In-One/issues/736)|42.00%|Hard| -|735|[Asteroid Collision](https://github.com/grandyang/LeetCode-All-In-One/issues/735)|37.60%|Medium| -|734|[Sentence Similarity](https://github.com/grandyang/LeetCode-All-In-One/issues/734) $|38.60%|Easy| -|733|[Flood Fill](https://github.com/grandyang/LeetCode-All-In-One/issues/733)|49.30%|Easy| -|732|[My Calendar III](https://github.com/grandyang/LeetCode-All-In-One/issues/732)|51.30%|Hard| -|731|[My Calendar II](https://github.com/grandyang/LeetCode-All-In-One/issues/731)|35.00%|Medium| -|730|[Count Different Palindromic Subsequences](https://github.com/grandyang/LeetCode-All-In-One/issues/730)|32.40%|Hard| -|729|[My Calendar I](https://github.com/grandyang/LeetCode-All-In-One/issues/729)|40.10%|Medium| -|728|[Self Dividing Numbers](https://github.com/grandyang/LeetCode-All-In-One/issues/728)|68.50%|Easy| -|727|[Minimum Window Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/727)|30.10%|Hard| -|726|[Number of Atoms](https://github.com/grandyang/LeetCode-All-In-One/issues/726)|45.00%|Hard| -|725|[Split Linked List in Parts](https://github.com/grandyang/LeetCode-All-In-One/issues/725)|50.00%|Medium| -|724|[Find Pivot Index](https://github.com/grandyang/LeetCode-All-In-One/issues/724)|41.00%|Easy| -|723|[Candy Crush](https://github.com/grandyang/LeetCode-All-In-One/issues/723) $|56.10%|Medium| -|722|[Remove Comments](https://github.com/grandyang/LeetCode-All-In-One/issues/722)|26.30%|Medium| -|721|[Accounts Merge](https://github.com/grandyang/LeetCode-All-In-One/issues/721)|29.60%|Medium| -|720|[Longest Word in Dictionary](https://github.com/grandyang/LeetCode-All-In-One/issues/720)|40.60%|Easy| -|719|[Find K-th Smallest Pair Distance](https://github.com/grandyang/LeetCode-All-In-One/issues/719)|26.10%|Hard| -|718|[Maximum Length of Repeated Subarray](https://github.com/grandyang/LeetCode-All-In-One/issues/718)|39.90%|Medium| -|717|[1-bit and 2-bit Characters](https://github.com/grandyang/LeetCode-All-In-One/issues/717)|50.90%|Easy| -|716|[Max Stack](https://github.com/grandyang/LeetCode-All-In-One/issues/716) $|35.50%|Hard| -|715|[Range Module](https://github.com/grandyang/LeetCode-All-In-One/issues/715)|31.00%|Hard| -|714|[Best Time to Buy and Sell Stock with Transaction Fee](https://github.com/grandyang/LeetCode-All-In-One/issues/714)|41.60%|Medium| -|713|[Subarray Product Less Than K](https://github.com/grandyang/LeetCode-All-In-One/issues/713)|32.90%|Medium| -|712|[Minimum ASCII Delete Sum for Two Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/712)|50.90%|Medium| -|711|[Number of Distinct Islands II](https://github.com/grandyang/LeetCode-All-In-One/issues/711) $|39.40%|Hard| -|710|[Random Pick with Blacklist](https://github.com/grandyang/LeetCode-All-In-One/issues/710)|29.80%|Hard| -|709|[To Lower Case](https://github.com/grandyang/LeetCode-All-In-One/issues/709)|74.50%|Easy| -|708|[Insert into a Cyclic Sorted List](https://github.com/grandyang/LeetCode-All-In-One/issues/708) $|25.50%|Medium| -|707|[Design Linked List](https://github.com/grandyang/LeetCode-All-In-One/issues/707)|19.10%|Easy| -|706|[Design HashMap](https://github.com/grandyang/LeetCode-All-In-One/issues/706)|49.10%|Easy| -|705|[Design HashSet](https://github.com/grandyang/LeetCode-All-In-One/issues/705)|43.60%|Easy| -|704|[Binary Search](https://github.com/grandyang/LeetCode-All-In-One/issues/704)|40.10%|Easy| -|703|[Kth Largest Element in a Stream](https://github.com/grandyang/LeetCode-All-In-One/issues/703)|39.60%|Easy| -|702|[Search in a Sorted Array of Unknown Size](https://github.com/grandyang/LeetCode-All-In-One/issues/702)|43.00%|Medium| -|701|[Insert into a Binary Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/701)|67.90%|Medium| -|700|[Search in a Binary Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/700)|62.70%|Easy| -|699|[Falling Squares](https://github.com/grandyang/LeetCode-All-In-One/issues/699)|36.80%|Hard| -|698|[Partition to K Equal Sum Subsets](https://github.com/grandyang/LeetCode-All-In-One/issues/698)|35.60%|Medium| -|697|[Degree of an Array](https://github.com/grandyang/LeetCode-All-In-One/issues/697)|47.90%|Easy| -|696|[Count Binary Substrings](https://github.com/grandyang/LeetCode-All-In-One/issues/696)|51.90%|Easy| -|695|[Max Area of Island](https://github.com/grandyang/LeetCode-All-In-One/issues/695)|53.30%|Easy| -|694|[Number of Distinct Islands](https://github.com/grandyang/LeetCode-All-In-One/issues/694) $|43.90%|Medium| -|693|[Binary Number with Alternating Bits](https://github.com/grandyang/LeetCode-All-In-One/issues/693)|54.20%|Easy| -|692|[Top K Frequent Words](https://github.com/grandyang/LeetCode-All-In-One/issues/692)|41.70%|Medium| -|691|[Stickers to Spell Word](https://github.com/grandyang/LeetCode-All-In-One/issues/691)|32.30%|Hard| -|690|[Employee Importance](https://github.com/grandyang/LeetCode-All-In-One/issues/690)|53.60%|Easy| -|689|[Maximum Sum of 3 Non-Overlapping Subarrays](https://github.com/grandyang/LeetCode-All-In-One/issues/689)|41.70%|Hard| -|688|[Knight Probability in Chessboard](https://github.com/grandyang/LeetCode-All-In-One/issues/688)|38.90%|Medium| -|687|[Longest Univalue Path](https://github.com/grandyang/LeetCode-All-In-One/issues/687)|32.90%|Easy| -|686|[Repeated String Match](https://github.com/grandyang/LeetCode-All-In-One/issues/686)|31.70%|Easy| -|685|[Redundant Connection II](https://github.com/grandyang/LeetCode-All-In-One/issues/685)|28.40%|Hard| -|684|[Redundant Connection](https://github.com/grandyang/LeetCode-All-In-One/issues/684)|37.40%|Medium| -|683|[K Empty Slots](https://github.com/grandyang/LeetCode-All-In-One/issues/683)|37.00%|Hard| -|682|[Baseball Game](https://github.com/grandyang/LeetCode-All-In-One/issues/682)|58.60%|Easy| -|681|[Next Closest Time](https://github.com/grandyang/LeetCode-All-In-One/issues/681) $|43.00%|Medium| -|680|[Valid Palindrome II](https://github.com/grandyang/LeetCode-All-In-One/issues/680)|31.10%|Easy| -|679|[24 Game](https://github.com/grandyang/LeetCode-All-In-One/issues/679)|38.30%|Hard| -|678|[Valid Parenthesis String](https://github.com/grandyang/LeetCode-All-In-One/issues/678)|28.30%|Medium| -|677|[Map Sum Pairs](https://github.com/grandyang/LeetCode-All-In-One/issues/677)|53.80%|Medium| -|676|[Implement Magic Dictionary](https://github.com/grandyang/LeetCode-All-In-One/issues/676)|50.70%|Medium| -|675|[Cut Off Trees for Golf Event](https://github.com/grandyang/LeetCode-All-In-One/issues/675)|27.20%|Hard| -|674|[Longest Continuous Increasing Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/674)|43.20%|Easy| -|673|[Number of Longest Increasing Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/673)|30.80%|Medium| -|672|[Bulb Switcher II](https://github.com/grandyang/LeetCode-All-In-One/issues/672)|47.60%|Medium| -|671|[Second Minimum Node In a Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/671)|42.30%|Easy| -|670|[Maximum Swap](https://github.com/grandyang/LeetCode-All-In-One/issues/670)|38.40%|Medium| -|669|[Trim a Binary Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/669)|58.70%|Easy| -|668|[Kth Smallest Number in Multiplication Table](https://github.com/grandyang/LeetCode-All-In-One/issues/668)|36.30%|Hard| -|667|[Beautiful Arrangement II](https://github.com/grandyang/LeetCode-All-In-One/issues/667)|51.50%|Medium| -|666|[Path Sum IV](https://github.com/grandyang/LeetCode-All-In-One/issues/666) $|48.90%|Medium| -|665|[Non-decreasing Array](https://github.com/grandyang/LeetCode-All-In-One/issues/665)|21.20%|Easy| -|664|[Strange Printer](https://github.com/grandyang/LeetCode-All-In-One/issues/664)|31.10%|Hard| -|663|[Equal Tree Partition](https://github.com/grandyang/LeetCode-All-In-One/issues/663) $|36.70%|Medium| -|662|[Maximum Width of Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/662)|37.00%|Medium| -|661|[Image Smoother](https://github.com/grandyang/LeetCode-All-In-One/issues/661)|46.60%|Easy| -|660|[Remove 9](https://github.com/grandyang/LeetCode-All-In-One/issues/660) $|46.10%|Hard| -|659|[Split Array into Consecutive Subsequences](https://github.com/grandyang/LeetCode-All-In-One/issues/659)|39.40%|Medium| -|658|[Find K Closest Elements](https://github.com/grandyang/LeetCode-All-In-One/issues/658)|36.30%|Medium| -|657|[Judge Route Circle](https://github.com/grandyang/LeetCode-All-In-One/issues/657)|69.30%|Easy| -|656|[Coin Path](https://github.com/grandyang/LeetCode-All-In-One/issues/656) $|24.60%|Hard| -|655|[Print Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/655)|50.80%|Medium| -|654|[Maximum Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/654)|70.80%|Medium| -|653|[Two Sum IV - Input is a BST](https://github.com/grandyang/LeetCode-All-In-One/issues/653)|50.60%|Easy| -|652|[Find Duplicate Subtrees](https://github.com/grandyang/LeetCode-All-In-One/issues/652)|33.20%|Medium| -|651|[4 Keys Keyboard](https://github.com/grandyang/LeetCode-All-In-One/issues/651) $|46.70%|Medium| -|650|[2 Keys Keyboard](https://github.com/grandyang/LeetCode-All-In-One/issues/650)|42.70%|Medium| -|649|[Dota2 Senate](https://github.com/grandyang/LeetCode-All-In-One/issues/649)|35.60%|Medium| -|648|[Replace Words](https://github.com/grandyang/LeetCode-All-In-One/issues/648)|48.40%|Medium| -|647|[Palindromic Substrings](https://github.com/grandyang/LeetCode-All-In-One/issues/647)|55.70%|Medium| -|646|[Maximum Length of Pair Chain](https://github.com/grandyang/LeetCode-All-In-One/issues/646)|47.40%|Medium| -|645|[Set Mismatch](https://github.com/grandyang/LeetCode-All-In-One/issues/645)|40.40%|Easy| -|644|[Maximum Average Subarray II](https://github.com/grandyang/LeetCode-All-In-One/issues/644) $|20.30%|Hard| -|643|[Maximum Average Subarray I](https://github.com/grandyang/LeetCode-All-In-One/issues/643)|38.40%|Easy| -|642|[Design Search Autocomplete System](https://github.com/grandyang/LeetCode-All-In-One/issues/642) $|29.40%|Hard| -|641|[Design Circular Deque](https://github.com/grandyang/LeetCode-All-In-One/issues/641)|48.00%|Medium| -|640|[Solve the Equation](https://github.com/grandyang/LeetCode-All-In-One/issues/640)|39.00%|Medium| -|639|[Decode Ways II](https://github.com/grandyang/LeetCode-All-In-One/issues/639)|22.80%|Hard| -|638|[Shopping Offers](https://github.com/grandyang/LeetCode-All-In-One/issues/638)|41.50%|Medium| -|637|[Average of Levels in Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/637)|55.60%|Easy| -|636|[Exclusive Time of Functions](https://github.com/grandyang/LeetCode-All-In-One/issues/636)|40.30%|Medium| -|635|[Design Log Storage System](https://github.com/grandyang/LeetCode-All-In-One/issues/635) $|47.70%|Medium| -|634|[Find the Derangement of An Array](https://github.com/grandyang/LeetCode-All-In-One/issues/634) $|32.70%|Medium| -|633|[Sum of Square Numbers](https://github.com/grandyang/LeetCode-All-In-One/issues/633)|31.60%|Easy| -|632|[Smallest Range](https://github.com/grandyang/LeetCode-All-In-One/issues/632)|42.80%|Hard| -|631|[Design Excel Sum Formula](https://github.com/grandyang/LeetCode-All-In-One/issues/631) $|25.60%|Hard| -|630|[Course Schedule III](https://github.com/grandyang/LeetCode-All-In-One/issues/630)|20.50%|Medium| -|629|[K Inverse Pairs Array](https://github.com/grandyang/LeetCode-All-In-One/issues/629)|23.90%|Hard| -|628|[Maximum Product of Three Numbers](https://github.com/grandyang/LeetCode-All-In-One/issues/628)|45.40%|Easy| +|769|[Max Chunks To Make Sorted](https://github.com/grandyang/leetcode/issues/769)|48.00%|Medium| +|768|[Max Chunks To Make Sorted II](https://github.com/grandyang/leetcode/issues/768)|43.20%|Hard| +|767|[Reorganize String](https://github.com/grandyang/leetcode/issues/767)|36.50%|Medium| +|766|[Toeplitz Matrix](https://github.com/grandyang/leetcode/issues/766)|57.90%|Easy| +|765|[Couples Holding Hands](https://github.com/grandyang/leetcode/issues/765)|48.50%|Hard| +|764|[Largest Plus Sign](https://github.com/grandyang/leetcode/issues/764)|39.20%|Medium| +|763|[Partition Labels](https://github.com/grandyang/leetcode/issues/763)|64.10%|Medium| +|762|[Prime Number of Set Bits in Binary Representation](https://github.com/grandyang/leetcode/issues/762)|55.00%|Easy| +|761|[Special Binary String](https://github.com/grandyang/leetcode/issues/761)|41.00%|Hard| +|760|[Find Anagram Mappings](https://github.com/grandyang/leetcode/issues/760) $|75.60%|Easy| +|759|[Employee Free Time](https://github.com/grandyang/leetcode/issues/759) $|51.90%|Hard| +|758|[Bold Words in String](https://github.com/grandyang/leetcode/issues/758) $|37.90%|Easy| +|757|[Set Intersection Size At Least Two](https://github.com/grandyang/leetcode/issues/757)|34.60%|Hard| +|756|[Pyramid Transition Matrix](https://github.com/grandyang/leetcode/issues/756)|45.50%|Medium| +|755|[Pour Water](https://github.com/grandyang/leetcode/issues/755) $|34.00%|Medium| +|754|[Reach a Number](https://github.com/grandyang/leetcode/issues/754)|26.10%|Medium| +|753|[Cracking the Safe](https://github.com/grandyang/leetcode/issues/753)|39.70%|Hard| +|752|[Open the Lock](https://github.com/grandyang/leetcode/issues/752)|38.20%|Medium| +|751|[IP to CIDR](https://github.com/grandyang/leetcode/issues/751) $|54.80%|Easy| +|750|[Number Of Corner Rectangles](https://github.com/grandyang/leetcode/issues/750) $|51.00%|Medium| +|749|[Contain Virus](https://github.com/grandyang/leetcode/issues/749)|39.60%|Hard| +|748|[Shortest Completing Word](https://github.com/grandyang/leetcode/issues/748)|53.50%|Medium| +|747|[Largest Number At Least Twice of Others](https://github.com/grandyang/leetcode/issues/747)|42.60%|Easy| +|746|[Min Cost Climbing Stairs](https://github.com/grandyang/leetcode/issues/746)|43.60%|Easy| +|745|[Prefix and Suffix Search](https://github.com/grandyang/leetcode/issues/745)|24.50%|Hard| +|744|[Find Smallest Letter Greater Than Target](https://github.com/grandyang/leetcode/issues/744)|45.30%|Easy| +|743|[Network Delay Time](https://github.com/grandyang/leetcode/issues/743)|34.30%|Medium| +|742|[Closest Leaf in a Binary Tree](https://github.com/grandyang/leetcode/issues/742) $|33.20%|Medium| +|741|[Cherry Pickup](https://github.com/grandyang/leetcode/issues/741)|22.50%|Hard| +|740|[Delete and Earn](https://github.com/grandyang/leetcode/issues/740)|42.60%|Medium| +|739|[Daily Temperatures](https://github.com/grandyang/leetcode/issues/739)|53.50%|Medium| +|738|[Monotone Increasing Digits](https://github.com/grandyang/leetcode/issues/738)|41.80%|Medium| +|737|[Sentence Similarity II](https://github.com/grandyang/leetcode/issues/737) $|41.20%|Medium| +|736|[Parse Lisp Expression](https://github.com/grandyang/leetcode/issues/736)|42.00%|Hard| +|735|[Asteroid Collision](https://github.com/grandyang/leetcode/issues/735)|37.60%|Medium| +|734|[Sentence Similarity](https://github.com/grandyang/leetcode/issues/734) $|38.60%|Easy| +|733|[Flood Fill](https://github.com/grandyang/leetcode/issues/733)|49.30%|Easy| +|732|[My Calendar III](https://github.com/grandyang/leetcode/issues/732)|51.30%|Hard| +|731|[My Calendar II](https://github.com/grandyang/leetcode/issues/731)|35.00%|Medium| +|730|[Count Different Palindromic Subsequences](https://github.com/grandyang/leetcode/issues/730)|32.40%|Hard| +|729|[My Calendar I](https://github.com/grandyang/leetcode/issues/729)|40.10%|Medium| +|728|[Self Dividing Numbers](https://github.com/grandyang/leetcode/issues/728)|68.50%|Easy| +|727|[Minimum Window Subsequence](https://github.com/grandyang/leetcode/issues/727)|30.10%|Hard| +|726|[Number of Atoms](https://github.com/grandyang/leetcode/issues/726)|45.00%|Hard| +|725|[Split Linked List in Parts](https://github.com/grandyang/leetcode/issues/725)|50.00%|Medium| +|724|[Find Pivot Index](https://github.com/grandyang/leetcode/issues/724)|41.00%|Easy| +|723|[Candy Crush](https://github.com/grandyang/leetcode/issues/723) $|56.10%|Medium| +|722|[Remove Comments](https://github.com/grandyang/leetcode/issues/722)|26.30%|Medium| +|721|[Accounts Merge](https://github.com/grandyang/leetcode/issues/721)|29.60%|Medium| +|720|[Longest Word in Dictionary](https://github.com/grandyang/leetcode/issues/720)|40.60%|Easy| +|719|[Find K-th Smallest Pair Distance](https://github.com/grandyang/leetcode/issues/719)|26.10%|Hard| +|718|[Maximum Length of Repeated Subarray](https://github.com/grandyang/leetcode/issues/718)|39.90%|Medium| +|717|[1-bit and 2-bit Characters](https://github.com/grandyang/leetcode/issues/717)|50.90%|Easy| +|716|[Max Stack](https://github.com/grandyang/leetcode/issues/716) $|35.50%|Hard| +|715|[Range Module](https://github.com/grandyang/leetcode/issues/715)|31.00%|Hard| +|714|[Best Time to Buy and Sell Stock with Transaction Fee](https://github.com/grandyang/leetcode/issues/714)|41.60%|Medium| +|713|[Subarray Product Less Than K](https://github.com/grandyang/leetcode/issues/713)|32.90%|Medium| +|712|[Minimum ASCII Delete Sum for Two Strings](https://github.com/grandyang/leetcode/issues/712)|50.90%|Medium| +|711|[Number of Distinct Islands II](https://github.com/grandyang/leetcode/issues/711) $|39.40%|Hard| +|710|[Random Pick with Blacklist](https://github.com/grandyang/leetcode/issues/710)|29.80%|Hard| +|709|[To Lower Case](https://github.com/grandyang/leetcode/issues/709)|74.50%|Easy| +|708|[Insert into a Cyclic Sorted List](https://github.com/grandyang/leetcode/issues/708) $|25.50%|Medium| +|707|[Design Linked List](https://github.com/grandyang/leetcode/issues/707)|19.10%|Easy| +|706|[Design HashMap](https://github.com/grandyang/leetcode/issues/706)|49.10%|Easy| +|705|[Design HashSet](https://github.com/grandyang/leetcode/issues/705)|43.60%|Easy| +|704|[Binary Search](https://github.com/grandyang/leetcode/issues/704)|40.10%|Easy| +|703|[Kth Largest Element in a Stream](https://github.com/grandyang/leetcode/issues/703)|39.60%|Easy| +|702|[Search in a Sorted Array of Unknown Size](https://github.com/grandyang/leetcode/issues/702)|43.00%|Medium| +|701|[Insert into a Binary Search Tree](https://github.com/grandyang/leetcode/issues/701)|67.90%|Medium| +|700|[Search in a Binary Search Tree](https://github.com/grandyang/leetcode/issues/700)|62.70%|Easy| +|699|[Falling Squares](https://github.com/grandyang/leetcode/issues/699)|36.80%|Hard| +|698|[Partition to K Equal Sum Subsets](https://github.com/grandyang/leetcode/issues/698)|35.60%|Medium| +|697|[Degree of an Array](https://github.com/grandyang/leetcode/issues/697)|47.90%|Easy| +|696|[Count Binary Substrings](https://github.com/grandyang/leetcode/issues/696)|51.90%|Easy| +|695|[Max Area of Island](https://github.com/grandyang/leetcode/issues/695)|53.30%|Easy| +|694|[Number of Distinct Islands](https://github.com/grandyang/leetcode/issues/694) $|43.90%|Medium| +|693|[Binary Number with Alternating Bits](https://github.com/grandyang/leetcode/issues/693)|54.20%|Easy| +|692|[Top K Frequent Words](https://github.com/grandyang/leetcode/issues/692)|41.70%|Medium| +|691|[Stickers to Spell Word](https://github.com/grandyang/leetcode/issues/691)|32.30%|Hard| +|690|[Employee Importance](https://github.com/grandyang/leetcode/issues/690)|53.60%|Easy| +|689|[Maximum Sum of 3 Non-Overlapping Subarrays](https://github.com/grandyang/leetcode/issues/689)|41.70%|Hard| +|688|[Knight Probability in Chessboard](https://github.com/grandyang/leetcode/issues/688)|38.90%|Medium| +|687|[Longest Univalue Path](https://github.com/grandyang/leetcode/issues/687)|32.90%|Easy| +|686|[Repeated String Match](https://github.com/grandyang/leetcode/issues/686)|31.70%|Easy| +|685|[Redundant Connection II](https://github.com/grandyang/leetcode/issues/685)|28.40%|Hard| +|684|[Redundant Connection](https://github.com/grandyang/leetcode/issues/684)|37.40%|Medium| +|683|[K Empty Slots](https://github.com/grandyang/leetcode/issues/683)|37.00%|Hard| +|682|[Baseball Game](https://github.com/grandyang/leetcode/issues/682)|58.60%|Easy| +|681|[Next Closest Time](https://github.com/grandyang/leetcode/issues/681) $|43.00%|Medium| +|680|[Valid Palindrome II](https://github.com/grandyang/leetcode/issues/680)|31.10%|Easy| +|679|[24 Game](https://github.com/grandyang/leetcode/issues/679)|38.30%|Hard| +|678|[Valid Parenthesis String](https://github.com/grandyang/leetcode/issues/678)|28.30%|Medium| +|677|[Map Sum Pairs](https://github.com/grandyang/leetcode/issues/677)|53.80%|Medium| +|676|[Implement Magic Dictionary](https://github.com/grandyang/leetcode/issues/676)|50.70%|Medium| +|675|[Cut Off Trees for Golf Event](https://github.com/grandyang/leetcode/issues/675)|27.20%|Hard| +|674|[Longest Continuous Increasing Subsequence](https://github.com/grandyang/leetcode/issues/674)|43.20%|Easy| +|673|[Number of Longest Increasing Subsequence](https://github.com/grandyang/leetcode/issues/673)|30.80%|Medium| +|672|[Bulb Switcher II](https://github.com/grandyang/leetcode/issues/672)|47.60%|Medium| +|671|[Second Minimum Node In a Binary Tree](https://github.com/grandyang/leetcode/issues/671)|42.30%|Easy| +|670|[Maximum Swap](https://github.com/grandyang/leetcode/issues/670)|38.40%|Medium| +|669|[Trim a Binary Search Tree](https://github.com/grandyang/leetcode/issues/669)|58.70%|Easy| +|668|[Kth Smallest Number in Multiplication Table](https://github.com/grandyang/leetcode/issues/668)|36.30%|Hard| +|667|[Beautiful Arrangement II](https://github.com/grandyang/leetcode/issues/667)|51.50%|Medium| +|666|[Path Sum IV](https://github.com/grandyang/leetcode/issues/666) $|48.90%|Medium| +|665|[Non-decreasing Array](https://github.com/grandyang/leetcode/issues/665)|21.20%|Easy| +|664|[Strange Printer](https://github.com/grandyang/leetcode/issues/664)|31.10%|Hard| +|663|[Equal Tree Partition](https://github.com/grandyang/leetcode/issues/663) $|36.70%|Medium| +|662|[Maximum Width of Binary Tree](https://github.com/grandyang/leetcode/issues/662)|37.00%|Medium| +|661|[Image Smoother](https://github.com/grandyang/leetcode/issues/661)|46.60%|Easy| +|660|[Remove 9](https://github.com/grandyang/leetcode/issues/660) $|46.10%|Hard| +|659|[Split Array into Consecutive Subsequences](https://github.com/grandyang/leetcode/issues/659)|39.40%|Medium| +|658|[Find K Closest Elements](https://github.com/grandyang/leetcode/issues/658)|36.30%|Medium| +|657|[Judge Route Circle](https://github.com/grandyang/leetcode/issues/657)|69.30%|Easy| +|656|[Coin Path](https://github.com/grandyang/leetcode/issues/656) $|24.60%|Hard| +|655|[Print Binary Tree](https://github.com/grandyang/leetcode/issues/655)|50.80%|Medium| +|654|[Maximum Binary Tree](https://github.com/grandyang/leetcode/issues/654)|70.80%|Medium| +|653|[Two Sum IV - Input is a BST](https://github.com/grandyang/leetcode/issues/653)|50.60%|Easy| +|652|[Find Duplicate Subtrees](https://github.com/grandyang/leetcode/issues/652)|33.20%|Medium| +|651|[4 Keys Keyboard](https://github.com/grandyang/leetcode/issues/651) $|46.70%|Medium| +|650|[2 Keys Keyboard](https://github.com/grandyang/leetcode/issues/650)|42.70%|Medium| +|649|[Dota2 Senate](https://github.com/grandyang/leetcode/issues/649)|35.60%|Medium| +|648|[Replace Words](https://github.com/grandyang/leetcode/issues/648)|48.40%|Medium| +|647|[Palindromic Substrings](https://github.com/grandyang/leetcode/issues/647)|55.70%|Medium| +|646|[Maximum Length of Pair Chain](https://github.com/grandyang/leetcode/issues/646)|47.40%|Medium| +|645|[Set Mismatch](https://github.com/grandyang/leetcode/issues/645)|40.40%|Easy| +|644|[Maximum Average Subarray II](https://github.com/grandyang/leetcode/issues/644) $|20.30%|Hard| +|643|[Maximum Average Subarray I](https://github.com/grandyang/leetcode/issues/643)|38.40%|Easy| +|642|[Design Search Autocomplete System](https://github.com/grandyang/leetcode/issues/642) $|29.40%|Hard| +|641|[Design Circular Deque](https://github.com/grandyang/leetcode/issues/641)|48.00%|Medium| +|640|[Solve the Equation](https://github.com/grandyang/leetcode/issues/640)|39.00%|Medium| +|639|[Decode Ways II](https://github.com/grandyang/leetcode/issues/639)|22.80%|Hard| +|638|[Shopping Offers](https://github.com/grandyang/leetcode/issues/638)|41.50%|Medium| +|637|[Average of Levels in Binary Tree](https://github.com/grandyang/leetcode/issues/637)|55.60%|Easy| +|636|[Exclusive Time of Functions](https://github.com/grandyang/leetcode/issues/636)|40.30%|Medium| +|635|[Design Log Storage System](https://github.com/grandyang/leetcode/issues/635) $|47.70%|Medium| +|634|[Find the Derangement of An Array](https://github.com/grandyang/leetcode/issues/634) $|32.70%|Medium| +|633|[Sum of Square Numbers](https://github.com/grandyang/leetcode/issues/633)|31.60%|Easy| +|632|[Smallest Range](https://github.com/grandyang/leetcode/issues/632)|42.80%|Hard| +|631|[Design Excel Sum Formula](https://github.com/grandyang/leetcode/issues/631) $|25.60%|Hard| +|630|[Course Schedule III](https://github.com/grandyang/leetcode/issues/630)|20.50%|Medium| +|629|[K Inverse Pairs Array](https://github.com/grandyang/leetcode/issues/629)|23.90%|Hard| +|628|[Maximum Product of Three Numbers](https://github.com/grandyang/leetcode/issues/628)|45.40%|Easy| |627|Swap Salary|67.40%|Easy| |626|Exchange Seats|49.60%|Medium| -|625|[Minimum Factorization](https://github.com/grandyang/LeetCode-All-In-One/issues/625)|29.50%|Medium| -|624|[Maximum Distance in Arrays](https://github.com/grandyang/LeetCode-All-In-One/issues/624) $|32.70%|Easy| -|623|[Add One Row to Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/623)|48.70%|Medium| -|622|[Design Circular Queue](https://github.com/grandyang/LeetCode-All-In-One/issues/622)|36.60%|Medium| -|621|[Task Scheduler](https://github.com/grandyang/LeetCode-All-In-One/issues/621)|41.40%|Medium| +|625|[Minimum Factorization](https://github.com/grandyang/leetcode/issues/625)|29.50%|Medium| +|624|[Maximum Distance in Arrays](https://github.com/grandyang/leetcode/issues/624) $|32.70%|Easy| +|623|[Add One Row to Tree](https://github.com/grandyang/leetcode/issues/623)|48.70%|Medium| +|622|[Design Circular Queue](https://github.com/grandyang/leetcode/issues/622)|36.60%|Medium| +|621|[Task Scheduler](https://github.com/grandyang/leetcode/issues/621)|41.40%|Medium| |620|Not Boring Movies|59.80%|Easy| |619|Biggest Single Number $|36.60%|Easy| |618|Students Report By Geography $|40.40%|Hard| -|617|[Merge Two Binary Trees](https://github.com/grandyang/LeetCode-All-In-One/issues/617)|69.60%|Easy| -|616|[Add Bold Tag in String](https://github.com/grandyang/LeetCode-All-In-One/issues/616) $|37.30%|Medium| +|617|[Merge Two Binary Trees](https://github.com/grandyang/leetcode/issues/617)|69.60%|Easy| +|616|[Add Bold Tag in String](https://github.com/grandyang/leetcode/issues/616) $|37.30%|Medium| |615|Average Salary: Departments VS Company $|33.00%|Hard| |614|Second Degree Follower $|22.70%|Medium| |613|Shortest Distance in a Line $|70.60%|Easy| |612|Shortest Distance in a Plane $|51.00%|Medium| -|611|[Valid Triangle Number](https://github.com/grandyang/LeetCode-All-In-One/issues/611)|38.90%|Medium| +|611|[Valid Triangle Number](https://github.com/grandyang/leetcode/issues/611)|38.90%|Medium| |610|Triangle Judgement $|59.10%|Easy| -|609|[Find Duplicate File in System](https://github.com/grandyang/LeetCode-All-In-One/issues/609)|52.50%|Medium| +|609|[Find Duplicate File in System](https://github.com/grandyang/leetcode/issues/609)|52.50%|Medium| |608|Tree Node $|54.60%|Medium| -|607|[Sales Person ](https://github.com/grandyang/LeetCode-All-In-One/issues/607) $|51.10%|Easy| -|606|[Construct String from Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/606)|51.80%|Easy| -|605|[Can Place Flowers](https://github.com/grandyang/LeetCode-All-In-One/issues/605)|30.00%|Easy| -|604|[Design Compressed String Iterator](https://github.com/grandyang/LeetCode-All-In-One/issues/604) $|31.60%|Easy| +|607|[Sales Person ](https://github.com/grandyang/leetcode/issues/607) $|51.10%|Easy| +|606|[Construct String from Binary Tree](https://github.com/grandyang/leetcode/issues/606)|51.80%|Easy| +|605|[Can Place Flowers](https://github.com/grandyang/leetcode/issues/605)|30.00%|Easy| +|604|[Design Compressed String Iterator](https://github.com/grandyang/leetcode/issues/604) $|31.60%|Easy| |603|Consecutive Available Seats $|54.50%|Easy| |602|Friend Requests II: Who Has the Most Friends $|42.50%|Medium| |601|Human Traffic of Stadium|33.80%|Hard| -|600|[Non-negative Integers without Consecutive Ones](https://github.com/grandyang/LeetCode-All-In-One/issues/600)|27.40%|Hard| -|599|[Minimum Index Sum of Two Lists](https://github.com/grandyang/LeetCode-All-In-One/issues/599)|48.00%|Easy| -|598|[Range Addition II](https://github.com/grandyang/LeetCode-All-In-One/issues/598)|48.30%|Easy| +|600|[Non-negative Integers without Consecutive Ones](https://github.com/grandyang/leetcode/issues/600)|27.40%|Hard| +|599|[Minimum Index Sum of Two Lists](https://github.com/grandyang/leetcode/issues/599)|48.00%|Easy| +|598|[Range Addition II](https://github.com/grandyang/leetcode/issues/598)|48.30%|Easy| |597|Friend Requests I: Overall Acceptance Rate $|38.40%|Easy| |596|Classes More Than 5 Students|33.40%|Easy| -|595|[Big Countries](https://github.com/grandyang/LeetCode-All-In-One/issues/595)|72.00%|Easy| -|594|[Longest Harmonious Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/594)|40.00%|Easy| -|593|[Valid Square](https://github.com/grandyang/LeetCode-All-In-One/issues/593)|39.20%|Medium| -|592|[Fraction Addition and Subtraction](https://github.com/grandyang/LeetCode-All-In-One/issues/592)|47.00%|Medium| -|591|[Tag Validator](https://github.com/grandyang/LeetCode-All-In-One/issues/591)|26.40%|Hard| -|590|[N-ary Tree Postorder Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/590)|63.00%|Easy| -|589|[N-ary Tree Preorder Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/589)|63.10%|Easy| -|588|[Design In-Memory File System](https://github.com/grandyang/LeetCode-All-In-One/issues/588) $|32.40%|Hard| -|587|[Erect the Fence](https://github.com/grandyang/LeetCode-All-In-One/issues/587)|29.90%|Hard| +|595|[Big Countries](https://github.com/grandyang/leetcode/issues/595)|72.00%|Easy| +|594|[Longest Harmonious Subsequence](https://github.com/grandyang/leetcode/issues/594)|40.00%|Easy| +|593|[Valid Square](https://github.com/grandyang/leetcode/issues/593)|39.20%|Medium| +|592|[Fraction Addition and Subtraction](https://github.com/grandyang/leetcode/issues/592)|47.00%|Medium| +|591|[Tag Validator](https://github.com/grandyang/leetcode/issues/591)|26.40%|Hard| +|590|[N-ary Tree Postorder Traversal](https://github.com/grandyang/leetcode/issues/590)|63.00%|Easy| +|589|[N-ary Tree Preorder Traversal](https://github.com/grandyang/leetcode/issues/589)|63.10%|Easy| +|588|[Design In-Memory File System](https://github.com/grandyang/leetcode/issues/588) $|32.40%|Hard| +|587|[Erect the Fence](https://github.com/grandyang/leetcode/issues/587)|29.90%|Hard| |586|Customer Placing the Largest Number of Orders $|62.50%|Easy| |585|Investments in 2016 $|44.60%|Medium| |584|Find Customer Referee $|63.60%|Easy| -|583|[Delete Operation for Two Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/583)|44.00%|Medium| -|582|[Kill Process](https://github.com/grandyang/LeetCode-All-In-One/issues/582) $|47.70%|Medium| -|581|[Shortest Unsorted Continuous Subarray](https://github.com/grandyang/LeetCode-All-In-One/issues/581)|30.10%|Easy| +|583|[Delete Operation for Two Strings](https://github.com/grandyang/leetcode/issues/583)|44.00%|Medium| +|582|[Kill Process](https://github.com/grandyang/leetcode/issues/582) $|47.70%|Medium| +|581|[Shortest Unsorted Continuous Subarray](https://github.com/grandyang/leetcode/issues/581)|30.10%|Easy| |580|Count Student Number in Departments $|40.00%|Medium| |579|Find Cumulative Salary of an Employee $|30.90%|Hard| |578|Get Highest Answer Rate Question $|33.10%|Medium| |577|Employee Bonus $|53.80%|Easy| -|576|[Out of Boundary Paths](https://github.com/grandyang/LeetCode-All-In-One/issues/576)|33.10%|Medium| -|575|[Distribute Candies](https://github.com/grandyang/LeetCode-All-In-One/issues/575)|59.50%|Easy| -|574|[Winning Candidate ](https://github.com/grandyang/LeetCode-All-In-One/issues/574) $|34.50%|Medium| -|573|[Squirrel Simulation](https://github.com/grandyang/LeetCode-All-In-One/issues/573) $|51.00%|Medium| -|572|[Subtree of Another Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/572)|41.00%|Easy| +|576|[Out of Boundary Paths](https://github.com/grandyang/leetcode/issues/576)|33.10%|Medium| +|575|[Distribute Candies](https://github.com/grandyang/leetcode/issues/575)|59.50%|Easy| +|574|[Winning Candidate ](https://github.com/grandyang/leetcode/issues/574) $|34.50%|Medium| +|573|[Squirrel Simulation](https://github.com/grandyang/leetcode/issues/573) $|51.00%|Medium| +|572|[Subtree of Another Tree](https://github.com/grandyang/leetcode/issues/572)|41.00%|Easy| |571|Find Median Given Frequency of Numbers $|44.90%|Hard| |570|Managers with at Least 5 Direct Reports $|59.00%|Medium| -|569|[Median Employee Salary ](https://github.com/grandyang/LeetCode-All-In-One/issues/569) $|41.60%|Hard| -|568|[Maximum Vacation Days](https://github.com/grandyang/LeetCode-All-In-One/issues/568) $|39.90%|Hard| -|567|[Permutation in String](https://github.com/grandyang/LeetCode-All-In-One/issues/567)|36.30%|Medium| -|566|[Reshape the Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/566)|59.80%|Easy| -|565|[Array Nesting](https://github.com/grandyang/LeetCode-All-In-One/issues/565)|50.00%|Medium| -|564|[Find the Closest Palindrome](https://github.com/grandyang/LeetCode-All-In-One/issues/564)|16.60%|Hard| -|563|[Binary Tree Tilt](https://github.com/grandyang/LeetCode-All-In-One/issues/563)|47.00%|Easy| -|562|[Longest Line of Consecutive One in Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/562) $|38.80%|Medium| -|561|[Array Partition I](https://github.com/grandyang/LeetCode-All-In-One/issues/561)|69.80%|Easy| -|560|[Subarray Sum Equals K](https://github.com/grandyang/LeetCode-All-In-One/issues/560)|41.80%|Medium| -|559|[Maximum Depth of N-ary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/559)|62.10%|Easy| -|558|[Quad Tree Intersection](https://github.com/grandyang/LeetCode-All-In-One/issues/558)|36.40%|Easy| -|557|[Reverse Words in a String III](https://github.com/grandyang/LeetCode-All-In-One/issues/557)|61.20%|Easy| -|556|[Next Greater Element III](https://github.com/grandyang/LeetCode-All-In-One/issues/556)|27.70%|Medium| -|555|[Split Concatenated Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/555) $|30.00%|Medium| -|554|[Brick Wall](https://github.com/grandyang/LeetCode-All-In-One/issues/554)|42.70%|Medium| -|553|[Optimal Division](https://github.com/grandyang/LeetCode-All-In-One/issues/553)|55.20%|Medium| -|552|[Student Attendance Record II](https://github.com/grandyang/LeetCode-All-In-One/issues/552)|28.50%|Hard| -|551|[Student Attendance Record I](https://github.com/grandyang/LeetCode-All-In-One/issues/551)|43.90%|Easy| -|549|[Binary Tree Longest Consecutive Sequence II](https://github.com/grandyang/LeetCode-All-In-One/issues/549) $|38.10%|Medium| -|548|[Split Array with Equal Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/548) $|30.80%|Medium| -|547|[Friend Circles](https://github.com/grandyang/LeetCode-All-In-One/issues/547)|49.00%|Medium| -|546|[Remove Boxes](https://github.com/grandyang/LeetCode-All-In-One/issues/546)|29.60%|Hard| -|545|[Boundary of Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/545) $|29.10%|Medium| -|544|[Output Contest Matches](https://github.com/grandyang/LeetCode-All-In-One/issues/544) $|73.20%|Medium| -|543|[Diameter of Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/543)|42.70%|Easy| -|542|[01 Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/542)|32.50%|Medium| -|541|[Reverse String II](https://github.com/grandyang/LeetCode-All-In-One/issues/541)|44.40%|Easy| -|540|[Single Element in a Sorted Array](https://github.com/grandyang/LeetCode-All-In-One/issues/540)|55.90%|Medium| -|539|[Minimum Time Difference](https://github.com/grandyang/LeetCode-All-In-One/issues/539)|44.70%|Medium| -|538|[Convert BST to Greater Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/538)|52.70%|Medium| -|537|[Complex Number Multiplication](https://github.com/grandyang/LeetCode-All-In-One/issues/537)|65.90%|Medium| -|536|[Construct Binary Tree from String](https://github.com/grandyang/LeetCode-All-In-One/issues/536) $|36.30%|Medium| -|535|[Encode and Decode TinyURL](https://github.com/grandyang/LeetCode-All-In-One/issues/535)|76.10%|Medium| -|534|[Design TinyURL](https://github.com/grandyang/LeetCode-All-In-One/issues/534)|N/A|Medium| -|533|[Lonely Pixel II](https://github.com/grandyang/LeetCode-All-In-One/issues/533) $|38.90%|Medium| -|532|[K-diff Pairs in an Array](https://github.com/grandyang/LeetCode-All-In-One/issues/532)|27.20%|Easy| -|531|[Lonely Pixel I](https://github.com/grandyang/LeetCode-All-In-One/issues/531) $|50.20%|Medium| -|530|[Minimum Absolute Difference in BST](https://github.com/grandyang/LeetCode-All-In-One/issues/530)|48.00%|Easy| -|529|[Minesweeper](https://github.com/grandyang/LeetCode-All-In-One/issues/529)|52.00%|Medium| -|528|[Random Pick with Weight](https://github.com/grandyang/LeetCode-All-In-One/issues/528)|41.80%|Medium| -|527|[Word Abbreviation](https://github.com/grandyang/LeetCode-All-In-One/issues/527) $|33.90%|Hard| -|526|[Beautiful Arrangement](https://github.com/grandyang/LeetCode-All-In-One/issues/526)|53.50%|Medium| -|525|[Contiguous Array](https://github.com/grandyang/LeetCode-All-In-One/issues/525)|34.40%|Medium| -|524|[Longest Word in Dictionary through Deleting](https://github.com/grandyang/LeetCode-All-In-One/issues/524)|40.20%|Medium| -|523|[Continuous Subarray Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/523)|21.3|Medium| -|522|[Longest Uncommon Subsequence II](https://github.com/grandyang/LeetCode-All-In-One/issues/522)|28.10%|Medium| -|521|[Longest Uncommon Subsequence I](https://github.com/grandyang/LeetCode-All-In-One/issues/521)|50.70%|Easy| -|520|[Detect Capital](https://github.com/grandyang/LeetCode-All-In-One/issues/520)|54.20%|Easy| -|519|[Random Flip Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/519)|32.20%|Medium| -|518|[Coin Change 2](https://github.com/grandyang/LeetCode-All-In-One/issues/518)|33.20%|Medium| -|517|[Super Washing Machines](https://github.com/grandyang/LeetCode-All-In-One/issues/517)|34.60%|Hard| -|516|[Longest Palindromic Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/516)|42.00%|Medium| -|515|[Find Largest Value in Each Tree Row](https://github.com/grandyang/LeetCode-All-In-One/issues/515)|52.70%|Medium| -|514|[Freedom Trail](https://github.com/grandyang/LeetCode-All-In-One/issues/514)|27.20%|Hard| -|513|[Find Bottom Left Tree Value](https://github.com/grandyang/LeetCode-All-In-One/issues/513)|55.60%|Medium| -|510|[Inorder Successor in BST II](https://github.com/grandyang/LeetCode-All-In-One/issues/510) $|56.20%|Medium| -|509|[Fibonacci Number](https://github.com/grandyang/LeetCode-All-In-One/issues/509)|66.40%|Easy| -|508|[Most Frequent Subtree Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/508)|52.00%|Medium| -|507|[Perfect Number](https://github.com/grandyang/LeetCode-All-In-One/issues/507)|32.70%|Easy| -|506|[Relative Ranks](https://github.com/grandyang/LeetCode-All-In-One/issues/506)|48.50%|Easy| -|505|[The Maze II](https://github.com/grandyang/LeetCode-All-In-One/issues/505)|34.80%|Medium| -|504|[Base 7](https://github.com/grandyang/LeetCode-All-In-One/issues/504)|46.40%|Easy| -|503|[Next Greater Element II](https://github.com/grandyang/LeetCode-All-In-One/issues/503)|46.20%|Medium| -|502|[IPO](https://github.com/grandyang/LeetCode-All-In-One/issues/502)|32.40%|Hard| -|501|[Find Mode in Binary Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/501)|39.40%|Easy| -|500|[Keyboard Row](https://github.com/grandyang/LeetCode-All-In-One/issues/500)|60.20%|Easy| -|499|[The Maze III](https://github.com/grandyang/LeetCode-All-In-One/issues/499)|32.00%|Hard| -|498|[Diagonal Traverse](https://github.com/grandyang/LeetCode-All-In-One/issues/498)|46.20%|Medium| -|497|[Random Point in Non-overlapping Rectangles](https://github.com/grandyang/LeetCode-All-In-One/issues/497)|33.20%|Medium| -|496|[Next Greater Element I](https://github.com/grandyang/LeetCode-All-In-One/issues/496)|58.80%|Easy| -|495|[Teemo Attacking](https://github.com/grandyang/LeetCode-All-In-One/issues/495)|51.90%|Medium| -|494|[Target Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/494)|44.40%|Medium| -|493|[Reverse Pairs](https://github.com/grandyang/LeetCode-All-In-One/issues/493)|17.10%|Hard| -|492|[Construct the Rectangle](https://github.com/grandyang/LeetCode-All-In-One/issues/492)|49.70%|Easy| -|491|[Increasing Subsequences](https://github.com/grandyang/LeetCode-All-In-One/issues/491)|39.30%|Medium| -|490|[The Maze](https://github.com/grandyang/LeetCode-All-In-One/issues/490)|42.80%|Medium| -|489|[Robot Room Cleaner](https://github.com/grandyang/LeetCode-All-In-One/issues/489)|57.10%|Hard| -|488|[Zuma Game](https://github.com/grandyang/LeetCode-All-In-One/issues/488)|38.00%|Hard| -|487|[Max Consecutive Ones II](https://github.com/grandyang/LeetCode-All-In-One/issues/487) $|42.70%|Medium| -|486|[Predict the Winner](https://github.com/grandyang/LeetCode-All-In-One/issues/486)|43.60%|Medium| -|485|[Max Consecutive Ones](https://github.com/grandyang/LeetCode-All-In-One/issues/485)|55.30%|Easy| -|484|[Find Permutation](https://github.com/grandyang/LeetCode-All-In-One/issues/484) $|50.50%|Medium| -|483|[Smallest Good Base](https://github.com/grandyang/LeetCode-All-In-One/issues/483)|30.60%|Hard| -|482|[License Key Formatting](https://github.com/grandyang/LeetCode-All-In-One/issues/482)|41.20%|Medium| -|481|[Magical String](https://github.com/grandyang/LeetCode-All-In-One/issues/481)|46.20%|Medium| -|480|[Sliding Window Median](https://github.com/grandyang/LeetCode-All-In-One/issues/480)|31.00%|Hard| -|479|[Largest Palindrome Product](https://github.com/grandyang/LeetCode-All-In-One/issues/479)|23.90%|Easy| -|478|[Generate Random Point in a Circle](https://github.com/grandyang/LeetCode-All-In-One/issues/478)|33.80%|Medium| -|477|[Total Hamming Distance](https://github.com/grandyang/LeetCode-All-In-One/issues/477)|44.10%|Medium| -|476|[Number Complement](https://github.com/grandyang/LeetCode-All-In-One/issues/476)|61.20%|Easy| -|475|[Heaters](https://github.com/grandyang/LeetCode-All-In-One/issues/475)|30.20%|Easy| -|474|[Ones and Zeroes](https://github.com/grandyang/LeetCode-All-In-One/issues/474)|34.90%|Medium| -|473|[Matchsticks to Square](https://github.com/grandyang/LeetCode-All-In-One/issues/473)|31.80%|Medium| -|472|[Concatenated Words](https://github.com/grandyang/LeetCode-All-In-One/issues/472)|29.20%|Hard| -|471|[Encode String with Shortest Length](https://github.com/grandyang/LeetCode-All-In-One/issues/471) $|43.50%|Hard| -|470|[Implement Rand10() Using Rand7()](https://github.com/grandyang/LeetCode-All-In-One/issues/470)|43.00%|Medium| -|469|[Convex Polygon](https://github.com/grandyang/LeetCode-All-In-One/issues/469) $|27.20%|Medium| -|468|[Validate IP Address](https://github.com/grandyang/LeetCode-All-In-One/issues/468)|22.10%|Medium| -|467|[Unique Substrings in Wraparound String](https://github.com/grandyang/LeetCode-All-In-One/issues/467)|29.90%|Medium| -|466|[Count The Repetitions](https://github.com/grandyang/LeetCode-All-In-One/issues/466)|24.20%|Hard| -|465|[Optimal Account Balancing](https://github.com/grandyang/LeetCode-All-In-One/issues/465) $|29.20%|Hard| -|464|[Can I Win](https://github.com/grandyang/LeetCode-All-In-One/issues/464)|22.20%|Medium| -|463|[Island Perimeter](https://github.com/grandyang/LeetCode-All-In-One/issues/463)|56.70%|Easy| -|462|[Minimum Moves to Equal Array Elements II](https://github.com/grandyang/LeetCode-All-In-One/issues/462)|50.90%|Medium| -|461|[Hamming Distance](https://github.com/grandyang/LeetCode-All-In-One/issues/461)|73.20%|Easy| -|460|[LFU Cache](https://github.com/grandyang/LeetCode-All-In-One/issues/460)|18.30%|Hard| -|459|[Repeated Substring Pattern](https://github.com/grandyang/LeetCode-All-In-One/issues/459)|39.70%|Easy| -|458|[Poor Pigs](https://github.com/grandyang/LeetCode-All-In-One/issues/458)|40.70%|Easy| -|457|[Circular Array Loop](https://github.com/grandyang/LeetCode-All-In-One/issues/457)|20.60%|Medium| -|456|[132 Pattern](https://github.com/grandyang/LeetCode-All-In-One/issues/456)|28.00%|Medium| -|455|[Assign Cookies](https://github.com/grandyang/LeetCode-All-In-One/issues/455)|48.10%|Easy| -|454|[4Sum II](https://github.com/grandyang/LeetCode-All-In-One/issues/454)|42.80%|Medium| -|453|[Minimum Moves to Equal Array Elements](https://github.com/grandyang/LeetCode-All-In-One/issues/453)|46.30%|Easy| -|452|[Minimum Number of Arrows to Burst Balloons](https://github.com/grandyang/LeetCode-All-In-One/issues/452)|42.10%|Medium| -|451|[Sort Characters By Frequency](https://github.com/grandyang/LeetCode-All-In-One/issues/451)|50.90%|Medium| -|450|[Delete Node in a BST](https://github.com/grandyang/LeetCode-All-In-One/issues/450)|34.50%|Medium| -|449|[Serialize and Deserialize BST](https://github.com/grandyang/LeetCode-All-In-One/issues/449)|41.20%|Medium| -|448|[Find All Numbers Disappeared in an Array](https://github.com/grandyang/LeetCode-All-In-One/issues/448)|58.30%|Easy| -|447|[Number of Boomerangs](https://github.com/grandyang/LeetCode-All-In-One/issues/447)|42.20%|Easy| -|446|[Arithmetic Slices II - Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/446)|22.30%|Hard| -|445|[Add Two Numbers II](https://github.com/grandyang/LeetCode-All-In-One/issues/445)|45.40%|Medium| -|444|[Sequence Reconstruction](https://github.com/grandyang/LeetCode-All-In-One/issues/444) $|20.50%|Medium| -|443|[String Compression](https://github.com/grandyang/LeetCode-All-In-One/issues/443)|35.80%|Easy| -|442|[Find All Duplicates in an Array](https://github.com/grandyang/LeetCode-All-In-One/issues/442)|46.40%|Medium| -|441|[Arranging Coins](https://github.com/grandyang/LeetCode-All-In-One/issues/441)|36.20%|Easy| -|440|[K-th Smallest in Lexicographical Order](https://github.com/grandyang/LeetCode-All-In-One/issues/440)|21.50%|Hard| -|439|[Ternary Expression Parser](https://github.com/grandyang/LeetCode-All-In-One/issues/439) $|49.40%|Medium| -|438|[Find All Anagrams in a String](https://github.com/grandyang/LeetCode-All-In-One/issues/438)|33.50%|Easy| -|437|[Path Sum III](https://github.com/grandyang/LeetCode-All-In-One/issues/437)|38.60%|Easy| -|436|[Find Right Interval](https://github.com/grandyang/LeetCode-All-In-One/issues/436)|42.30%|Medium| -|435|[Non-overlapping Intervals](https://github.com/grandyang/LeetCode-All-In-One/issues/435)|39.80%|Medium| -|434|[Number of Segments in a String](https://github.com/grandyang/LeetCode-All-In-One/issues/434)|38.40%|Easy| -|433|[Minimum Genetic Mutation](https://github.com/grandyang/LeetCode-All-In-One/issues/433)|33.50%|Medium| -|432|[All O`one Data Structure](https://github.com/grandyang/LeetCode-All-In-One/issues/432)|28.30%|Hard| -|431|[Encode N-ary Tree to Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/431) $|53.70%|Hard| -|430|[Flatten a Multilevel Doubly Linked List](https://github.com/grandyang/LeetCode-All-In-One/issues/430)|36.20%|Medium| -|429|[N-ary Tree Level Order Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/429)|55.80%|Easy| -|428|[Serialize and Deserialize N-ary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/428) $|48.10%|Hard| -|427|[Construct Quad Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/427)|49.20%|Easy| -|426|[Convert Binary Search Tree to Sorted Doubly Linked List](https://github.com/grandyang/LeetCode-All-In-One/issues/426)|43.30%|Medium| -|425|[Word Squares](https://github.com/grandyang/LeetCode-All-In-One/issues/425) $|40.10%|Hard| -|424|[Longest Repeating Character Replacement](https://github.com/grandyang/LeetCode-All-In-One/issues/424)|38.10%|Medium| -|423|[Reconstruct Original Digits from English](https://github.com/grandyang/LeetCode-All-In-One/issues/423)|40.80%|Medium| -|422|[Valid Word Square](https://github.com/grandyang/LeetCode-All-In-One/issues/422) $|36.40%|Easy| -|421|[Maximum XOR of Two Numbers in an Array](https://github.com/grandyang/LeetCode-All-In-One/issues/421)|36.40%|Medium| -|420|[Strong Password Checker](https://github.com/grandyang/LeetCode-All-In-One/issues/420)|22.10%|Hard| -|419|[Battleships in a Board](https://github.com/grandyang/LeetCode-All-In-One/issues/419)|59.30%|Medium| -|418|[Sentence Screen Fitting](https://github.com/grandyang/LeetCode-All-In-One/issues/418) $|25.10%|Medium| -|417|[Pacific Atlantic Water Flow](https://github.com/grandyang/LeetCode-All-In-One/issues/417)|31.10%|Medium| -|416|[Partition Equal Subset Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/416)|36.80%|Medium| -|415|[Add Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/415)|41.50%|Easy| -|414|[Third Maximum Number](https://github.com/grandyang/LeetCode-All-In-One/issues/414)|26.50%|Easy| -|413|[Arithmetic Slices](https://github.com/grandyang/LeetCode-All-In-One/issues/413)|53.50%|Medium| -|412|[Fizz Buzz](https://github.com/grandyang/LeetCode-All-In-One/issues/412)|57.50%|Easy| -|411|[Minimum Unique Word Abbreviation](https://github.com/grandyang/LeetCode-All-In-One/issues/411) $|25.60%|Hard| -|410|[Split Array Largest Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/410)|25.00%|Hard| -|409|[Longest Palindrome](https://github.com/grandyang/LeetCode-All-In-One/issues/409)|44.90%|Easy| -|408|[Valid Word Abbreviation](https://github.com/grandyang/LeetCode-All-In-One/issues/408) $|26.20%|Easy| -|407|[Trapping Rain Water II](https://github.com/grandyang/LeetCode-All-In-One/issues/407)|33.10%|Hard| -|406|[Queue Reconstruction by Height](https://github.com/grandyang/LeetCode-All-In-One/issues/406)|54.10%|Medium| -|405|[Convert a Number to Hexadecimal](https://github.com/grandyang/LeetCode-All-In-One/issues/405)|41.80%|Easy| -|404|[Sum of Left Leaves](https://github.com/grandyang/LeetCode-All-In-One/issues/404)|46.20%|Easy| -|403|[Frog Jump](https://github.com/grandyang/LeetCode-All-In-One/issues/403)|31.70%|Hard| -|402|[Remove K Digits](https://github.com/grandyang/LeetCode-All-In-One/issues/402)|25.90%|Medium| -|401|[Binary Watch](https://github.com/grandyang/LeetCode-All-In-One/issues/401)|43.00%|Easy| -|400|[Nth Digit](https://github.com/grandyang/LeetCode-All-In-One/issues/400)|30.70%|Easy| -|399|[Evaluate Division](https://github.com/grandyang/LeetCode-All-In-One/issues/399)|34.60%|Medium| -|398|[Random Pick Index](https://github.com/grandyang/LeetCode-All-In-One/issues/398)|30.40%|Medium| -|397|[Integer Replacement](https://github.com/grandyang/LeetCode-All-In-One/issues/397)|25.90%|Easy| -|396|[Rotate Function](https://github.com/grandyang/LeetCode-All-In-One/issues/396)|28.40%|Easy| -|395|[Longest Substring with At Least K Repeating Characters](https://github.com/grandyang/LeetCode-All-In-One/issues/395)|32.50%|Medium| -|394|[Decode String](https://github.com/grandyang/LeetCode-All-In-One/issues/394)|38.60%|Medium| -|393|[UTF-8 Validation](https://github.com/grandyang/LeetCode-All-In-One/issues/393)|33.00%|Medium| -|392|[Is Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/392)|44.10%|Medium| -|391|[Perfect Rectangle](https://github.com/grandyang/LeetCode-All-In-One/issues/391)|13.30%|Hard| -|390|[Elimination Game](https://github.com/grandyang/LeetCode-All-In-One/issues/390)|12.50%|Medium| -|389|[Find the Difference](https://github.com/grandyang/LeetCode-All-In-One/issues/389)|49.90%|Easy| -|388|[Longest Absolute File Path](https://github.com/grandyang/LeetCode-All-In-One/issues/388)|28.30%|Medium| -|387|[First Unique Character in a String](https://github.com/grandyang/LeetCode-All-In-One/issues/387)|43.10%|Easy| -|386|[Lexicographical Numbers](https://github.com/grandyang/LeetCode-All-In-One/issues/386)|31.00%|Medium| -|385|[Mini Parser](https://github.com/grandyang/LeetCode-All-In-One/issues/385)|26.90%|Medium| -|384|[Shuffle an Array](https://github.com/grandyang/LeetCode-All-In-One/issues/384)|45.50%|Medium| -|383|[Ransom Note](https://github.com/grandyang/LeetCode-All-In-One/issues/383)|44.60%|Easy| -|382|[Linked List Random Node](https://github.com/grandyang/LeetCode-All-In-One/issues/382)|48.60%|Medium| -|381|[Insert Delete GetRandom O(1) - Duplicates allowed](https://github.com/grandyang/LeetCode-All-In-One/issues/381)|30.90%|Hard| -|380|[Insert Delete GetRandom O(1)](https://github.com/grandyang/LeetCode-All-In-One/issues/380)|33.80%|Medium| -|379|[Design Phone Directory](https://github.com/grandyang/LeetCode-All-In-One/issues/379) $|25.80%|Medium| -|378|[Kth Smallest Element in a Sorted Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/378)|40.20%|Medium| -|377|[Combination Sum IV](https://github.com/grandyang/LeetCode-All-In-One/issues/377)|37.50%|Medium| -|376|[Wiggle Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/376)|35.80%|Medium| -|375|[Guess Number Higher or Lower II](https://github.com/grandyang/LeetCode-All-In-One/issues/375)|28.30%|Medium| -|374|[Guess Number Higher or Lower](https://github.com/grandyang/LeetCode-All-In-One/issues/374)|31.70%|Easy| -|373|[Find K Pairs with Smallest Sums](https://github.com/grandyang/LeetCode-All-In-One/issues/373)|25.50%|Medium| -|372|[Super Pow](https://github.com/grandyang/LeetCode-All-In-One/issues/372)|30.10%|Medium| -|371|[Sum of Two Integers](https://github.com/grandyang/LeetCode-All-In-One/issues/371)|54.00%|Easy| -|370|[Range Addition](https://github.com/grandyang/LeetCode-All-In-One/issues/370) $|49.90%|Medium| -|369|[Plus One Linked List](https://github.com/grandyang/LeetCode-All-In-One/issues/369) $|50.10%|Medium| -|368|[Largest Divisible Subset](https://github.com/grandyang/LeetCode-All-In-One/issues/368)|32.00%|Medium| -|367|[Valid Perfect Square](https://github.com/grandyang/LeetCode-All-In-One/issues/367)|36.60%|Medium| -|366|[Find Leaves of Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/366) $|53.60%|Medium| -|365|[Water and Jug Problem](https://github.com/grandyang/LeetCode-All-In-One/issues/365)|20.10%|Medium| -|364|[Nested List Weight Sum II](https://github.com/grandyang/LeetCode-All-In-One/issues/364) $|47.20%|Medium| -|363|[Max Sum of Rectangle No Larger Than K](https://github.com/grandyang/LeetCode-All-In-One/issues/363)|27.00%|Hard| -|362|[Design Hit Counter](https://github.com/grandyang/LeetCode-All-In-One/issues/362) $|48.30%|Medium| -|361|[Bomb Enemy](https://github.com/grandyang/LeetCode-All-In-One/issues/361) $|32.60%|Medium| -|360|[Sort Transformed Array](https://github.com/grandyang/LeetCode-All-In-One/issues/360) $|40.80%|Medium| -|359|[Logger Rate Limiter](https://github.com/grandyang/LeetCode-All-In-One/issues/359) $|56.00%|Easy| -|358|[Rearrange String k Distance Apart](https://github.com/grandyang/LeetCode-All-In-One/issues/358) $|26.90%|Hard| -|357|[Count Numbers with Unique Digits](https://github.com/grandyang/LeetCode-All-In-One/issues/357)|42.50%|Medium| -|356|[Line Reflection](https://github.com/grandyang/LeetCode-All-In-One/issues/356) $|28.70%|Medium| -|355|[Design Twitter](https://github.com/grandyang/LeetCode-All-In-One/issues/355)|22.20%|Medium| -|354|[Russian Doll Envelopes](https://github.com/grandyang/LeetCode-All-In-One/issues/354)|27.10%|Hard| -|353|[Design Snake Game](https://github.com/grandyang/LeetCode-All-In-One/issues/353) $|19.80%|Medium| -|352|[Data Stream as Disjoint Intervals](https://github.com/grandyang/LeetCode-All-In-One/issues/352)|34.40%|Hard| -|351|[Android Unlock Patterns](https://github.com/grandyang/LeetCode-All-In-One/issues/351) $|32.00%|Medium| -|350|[Intersection of Two Arrays II](https://github.com/grandyang/LeetCode-All-In-One/issues/350)|41.50%|Easy| -|349|[Intersection of Two Arrays](https://github.com/grandyang/LeetCode-All-In-One/issues/349)|47.80%|Easy| -|348|[Design Tic-Tac-Toe ](https://github.com/grandyang/LeetCode-All-In-One/issues/348) $|45.60%|Medium| -|347|[Top K Frequent Elements](https://github.com/grandyang/LeetCode-All-In-One/issues/347)|44.50%|Medium| -|346|[Moving Average from Data Stream ](https://github.com/grandyang/LeetCode-All-In-One/issues/346) $|69.20%|Easy| -|345|[Reverse Vowels of a String](https://github.com/grandyang/LeetCode-All-In-One/issues/345)|35.30%|Easy| -|344|[Reverse String](https://github.com/grandyang/LeetCode-All-In-One/issues/344)|58.90%|Easy| -|343|[Integer Break](https://github.com/grandyang/LeetCode-All-In-One/issues/343)|43.60%|Medium| -|342|[Power of Four](https://github.com/grandyang/LeetCode-All-In-One/issues/342)|34.10%|Easy| -|341|[Flatten Nested List Iterator](https://github.com/grandyang/LeetCode-All-In-One/issues/341) $|18.70%|Medium| -|340|[Longest Substring with At Most K Distinct Characters](https://github.com/grandyang/LeetCode-All-In-One/issues/340) $|36.30%|Hard| -|339|[Nested List Weight Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/339) $|54.60%|Easy| -|338|[Counting Bits](https://github.com/grandyang/LeetCode-All-In-One/issues/338)|55.40%|Medium| -|337|[House Robber III](https://github.com/grandyang/LeetCode-All-In-One/issues/337)|37.00%|Medium| -|336|[Palindrome Pairs](https://github.com/grandyang/LeetCode-All-In-One/issues/336)|18.70%|Hard| -|335|[Self Crossing](https://github.com/grandyang/LeetCode-All-In-One/issues/335)|18.00%|Medium| -|334|[Increasing Triplet Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/334)|33.20%|Medium| -|333|[Largest BST Subtree](https://github.com/grandyang/LeetCode-All-In-One/issues/333) $|26.50%|Medium| -|332|[Reconstruct Itinerary](https://github.com/grandyang/LeetCode-All-In-One/issues/332)|23.40%|Medium| -|331|[Verify Preorder Serialization of a Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/331)|31.50%|Medium| -|330|[Patching Array](https://github.com/grandyang/LeetCode-All-In-One/issues/330)|28.80%|Medium| -|329|[Longest Increasing Path in a Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/329)|29.50%|Medium| -|328|[Odd Even Linked List](https://github.com/grandyang/LeetCode-All-In-One/issues/328)|37.80%|Easy| -|327|[Count of Range Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/327)|24.30%|Hard| -|326|[Power of Three](https://github.com/grandyang/LeetCode-All-In-One/issues/326)|35.30%|Easy| -|325|[Maximum Size Subarray Sum Equals k](https://github.com/grandyang/LeetCode-All-In-One/issues/325) $|39.60%|Easy| -|324|[Wiggle Sort II](https://github.com/grandyang/LeetCode-All-In-One/issues/324)|20.10%|Medium| -|323|[Number of Connected Components in an Undirected Graph](https://github.com/grandyang/LeetCode-All-In-One/issues/323) $|43.30%|Medium| -|322|[Coin Change](https://github.com/grandyang/LeetCode-All-In-One/issues/322)|24.90%|Medium| -|321|[Create Maximum Number](https://github.com/grandyang/LeetCode-All-In-One/issues/321)|19.10%|Hard| -|320|[Generalized Abbreviation](https://github.com/grandyang/LeetCode-All-In-One/issues/320) $|40.40%|Medium| -|319|[Bulb Switcher](https://github.com/grandyang/LeetCode-All-In-One/issues/319)|39.20%|Medium| -|318|[Maximum Product of Word Lengths](https://github.com/grandyang/LeetCode-All-In-One/issues/318)|38.70%|Medium| -|317|[Shortest Distance from All Buildings](https://github.com/grandyang/LeetCode-All-In-One/issues/317) $|29.10%|Hard| -|316|[Remove Duplicate Letters](https://github.com/grandyang/LeetCode-All-In-One/issues/316)|23.00%|Medium| -|315|[Count of Smaller Numbers After Self](https://github.com/grandyang/LeetCode-All-In-One/issues/315)|28.20%|Hard| -|314|[Binary Tree Vertical Order Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/314) $|30.10%|Medium| -|313|[Super Ugly Number](https://github.com/grandyang/LeetCode-All-In-One/issues/313)|31.20%|Medium| -|312|[Burst Balloons](https://github.com/grandyang/LeetCode-All-In-One/issues/312)|24.50%|Medium| -|311|[Sparse Matrix Multiplication](https://github.com/grandyang/LeetCode-All-In-One/issues/311) $|40.00%|Medium| -|310|[Minimum Height Trees](https://github.com/grandyang/LeetCode-All-In-One/issues/310)|20.20%|Medium| -|309|[Best Time to Buy and Sell Stock with Cooldown](https://github.com/grandyang/LeetCode-All-In-One/issues/309)|32.60%|Medium| -|308|[Range Sum Query 2D - Mutable](https://github.com/grandyang/LeetCode-All-In-One/issues/308) $|20.30%|Hard| -|307|[Range Sum Query - Mutable](https://github.com/grandyang/LeetCode-All-In-One/issues/307)|14.50%|Medium| -|306|[Additive Number](https://github.com/grandyang/LeetCode-All-In-One/issues/306)|23.30%|Medium| -|305|[Number of Islands II](https://github.com/grandyang/LeetCode-All-In-One/issues/305) $|26.70%|Hard| -|304|[Range Sum Query 2D - Immutable](https://github.com/grandyang/LeetCode-All-In-One/issues/304)|21.50%|Medium| -|303|[Range Sum Query - Immutable](https://github.com/grandyang/LeetCode-All-In-One/issues/303)|25.70%|Easy| -|302|[Smallest Rectangle Enclosing Black Pixels](https://github.com/grandyang/LeetCode-All-In-One/issues/302) $|36.70%|Hard| -|301|[Remove Invalid Parentheses](https://github.com/grandyang/LeetCode-All-In-One/issues/301)|27.00%|Hard| -|300|[Longest Increasing Subsequence](https://github.com/grandyang/LeetCode-All-In-One/issues/300)|31.50%|Medium| -|299|[Bulls and Cows](https://github.com/grandyang/LeetCode-All-In-One/issues/299)|23.80%|Easy| -|298|[Binary Tree Longest Consecutive Sequence](https://github.com/grandyang/LeetCode-All-In-One/issues/298) $|32.20%|Medium| -|297|[Serialize and Deserialize Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/297)|23.80%|Medium| -|296|[Best Meeting Point](https://github.com/grandyang/LeetCode-All-In-One/issues/296) $|41.40%|Hard| -|295|[Find Median from Data Stream](https://github.com/grandyang/LeetCode-All-In-One/issues/295)|18.60%|Hard| -|294|[Flip Game II](https://github.com/grandyang/LeetCode-All-In-One/issues/294) $|38.10%|Medium| -|293|[Flip Game](https://github.com/grandyang/LeetCode-All-In-One/issues/293) $|47.60%|Easy| -|292|[Nim Game](https://github.com/grandyang/LeetCode-All-In-One/issues/292)|49.50%|Easy| -|291|[Word Pattern II](https://github.com/grandyang/LeetCode-All-In-One/issues/291) $|31.50%|Hard| -|290|[Word Pattern](https://github.com/grandyang/LeetCode-All-In-One/issues/290)|26.50%|Easy| -|289|[Game of Life](https://github.com/grandyang/LeetCode-All-In-One/issues/289)|32.60%|Medium| -|288|[Unique Word Abbreviation](https://github.com/grandyang/LeetCode-All-In-One/issues/288) $|16.80%|Easy| -|287|[Find the Duplicate Number](https://github.com/grandyang/LeetCode-All-In-One/issues/287)|32.80%|Hard| -|286|[Walls and Gates](https://github.com/grandyang/LeetCode-All-In-One/issues/286) $|29.90%|Medium| -|285|[Inorder Successor in BST](https://github.com/grandyang/LeetCode-All-In-One/issues/285) $|32.50%|Medium| -|284|[Peeking Iterator](https://github.com/grandyang/LeetCode-All-In-One/issues/284)|31.00%|Medium| -|283|[Move Zeroes](https://github.com/grandyang/LeetCode-All-In-One/issues/283)|41.40%|Easy| -|282|[Expression Add Operators](https://github.com/grandyang/LeetCode-All-In-One/issues/282)|18.90%|Hard| -|281|[Zigzag Iterator](https://github.com/grandyang/LeetCode-All-In-One/issues/281) $|37.20%|Medium| -|280|[Wiggle Sort](https://github.com/grandyang/LeetCode-All-In-One/issues/280) $|43.30%|Medium| -|279|[Perfect Squares](https://github.com/grandyang/LeetCode-All-In-One/issues/279)|28.80%|Medium| -|278|[First Bad Version](https://github.com/grandyang/LeetCode-All-In-One/issues/278)|19.80%|Easy| -|277|[Find the Celebrity](https://github.com/grandyang/LeetCode-All-In-One/issues/277) $|31.70%|Medium| -|276|[Paint Fence](https://github.com/grandyang/LeetCode-All-In-One/issues/276) $|25.00%|Easy| -|275|[H-Index II](https://github.com/grandyang/LeetCode-All-In-One/issues/275)|31.40%|Medium| -|274|[H-Index](https://github.com/grandyang/LeetCode-All-In-One/issues/274)|25.30%|Medium| -|273|[Integer to English Words](https://github.com/grandyang/LeetCode-All-In-One/issues/273)|15.50%|Medium| -|272|[Closest Binary Search Tree Value II](https://github.com/grandyang/LeetCode-All-In-One/issues/272) $|26.90%|Hard| -|271|[Encode and Decode Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/271) $|25.40%|Medium| -|270|[Closest Binary Search Tree Value](https://github.com/grandyang/LeetCode-All-In-One/issues/270) $|29.40%|Easy| -|269|[Alien Dictionary](https://github.com/grandyang/LeetCode-All-In-One/issues/269) $|16.50%|Hard| -|268|[Missing Number](https://github.com/grandyang/LeetCode-All-In-One/issues/268)|34.70%|Medium| -|267|[Palindrome Permutation II](https://github.com/grandyang/LeetCode-All-In-One/issues/267) $|22.50%|Medium| -|266|[Palindrome Permutation](https://github.com/grandyang/LeetCode-All-In-One/issues/266) $|45.80%|Easy| -|265|[Paint House II](https://github.com/grandyang/LeetCode-All-In-One/issues/265) $|30.00%|Hard| -|264|[Ugly Number II](https://github.com/grandyang/LeetCode-All-In-One/issues/264)|21.60%|Medium| -|263|[Ugly Number](https://github.com/grandyang/LeetCode-All-In-One/issues/263)|32.60%|Easy| -|262|[Trips and Users](https://github.com/grandyang/LeetCode-All-In-One/issues/262) *|16.10%|Hard| -|261|[Graph Valid Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/261) $|25.40%|Medium| -|260|[Single Number III](https://github.com/grandyang/LeetCode-All-In-One/issues/260)|37.60%|Medium| -|259|[3Sum Smaller](https://github.com/grandyang/LeetCode-All-In-One/issues/259) $|34.20%|Medium| -|258|[Add Digits](https://github.com/grandyang/LeetCode-All-In-One/issues/258)|46.50%|Easy| -|257|[Binary Tree Paths](https://github.com/grandyang/LeetCode-All-In-One/issues/257)|21.90%|Easy| -|256|[Paint House](https://github.com/grandyang/LeetCode-All-In-One/issues/256) $|38.40%|Medium| -|255|[Verify Preorder Sequence in Binary Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/255) $|32.30%|Medium| -|254|[Factor Combinations](https://github.com/grandyang/LeetCode-All-In-One/issues/254) $|29.00%|Medium| -|253|[Meeting Rooms II](https://github.com/grandyang/LeetCode-All-In-One/issues/253) $|28.80%|Medium| -|252|[Meeting Rooms](https://github.com/grandyang/LeetCode-All-In-One/issues/252) $|35.40%|Easy| -|251|[Flatten 2D Vector](https://github.com/grandyang/LeetCode-All-In-One/issues/251) $|28.30%|Medium| -|250|[Count Univalue Subtrees](https://github.com/grandyang/LeetCode-All-In-One/issues/250) $|32.70%|Medium| -|249|[Group Shifted Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/249) $|25.20%|Easy| -|248|[Strobogrammatic Number III](https://github.com/grandyang/LeetCode-All-In-One/issues/248) $|21.80%|Hard| -|247|[Strobogrammatic Number II](https://github.com/grandyang/LeetCode-All-In-One/issues/247) $|26.70%|Medium| -|246|[Strobogrammatic Number](https://github.com/grandyang/LeetCode-All-In-One/issues/246) $|31.60%|Easy| -|245|[Shortest Word Distance III](https://github.com/grandyang/LeetCode-All-In-One/issues/245) $|43.20%|Medium| -|244|[Shortest Word Distance II](https://github.com/grandyang/LeetCode-All-In-One/issues/244) $|33.70%|Medium| -|243|[Shortest Word Distance](https://github.com/grandyang/LeetCode-All-In-One/issues/243) $|41.80%|Easy| -|242|[Valid Anagram](https://github.com/grandyang/LeetCode-All-In-One/issues/242)|39.30%|Easy| -|241|[Different Ways to Add Parentheses](https://github.com/grandyang/LeetCode-All-In-One/issues/241)|27.10%|Medium| -|240|[Search a 2D Matrix II](https://github.com/grandyang/LeetCode-All-In-One/issues/240)|31.40%|Medium| -|239|[Sliding Window Maximum](https://github.com/grandyang/LeetCode-All-In-One/issues/239)|24.30%|Hard| -|238|[Product of Array Except Self](https://github.com/grandyang/LeetCode-All-In-One/issues/238)|42.40%|Medium| -|237|[Delete Node in a Linked List](https://github.com/grandyang/LeetCode-All-In-One/issues/237)|50.90%|Easy| -|236|[Lowest Common Ancestor of a Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/236)|28.30%|Medium| -|235|[Lowest Common Ancestor of a Binary Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/235)|38.90%|Medium| -|234|[Palindrome Linked List](https://github.com/grandyang/LeetCode-All-In-One/issues/234)|23.80%|Easy| -|233|[Number of Digit One](https://github.com/grandyang/LeetCode-All-In-One/issues/233)|16.10%|Medium| -|232|[Implement Queue using Stacks](https://github.com/grandyang/LeetCode-All-In-One/issues/232)|37.40%|Easy| -|231|[Power of Two](https://github.com/grandyang/LeetCode-All-In-One/issues/231)|31.30%|Easy| -|230|[Kth Smallest Element in a BST](https://github.com/grandyang/LeetCode-All-In-One/issues/230)|30.50%|Medium| -|229|[Majority Element II](https://github.com/grandyang/LeetCode-All-In-One/issues/229)|30.50%|Medium| -|228|[Summary Ranges](https://github.com/grandyang/LeetCode-All-In-One/issues/228)|21.10%|Easy| -|227|[Basic Calculator II](https://github.com/grandyang/LeetCode-All-In-One/issues/227)|18.00%|Medium| -|226|[Invert Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/226)|35.40%|Easy| -|225|[Implement Stack using Queues](https://github.com/grandyang/LeetCode-All-In-One/issues/225)|29.60%|Medium| -|224|[Basic Calculator](https://github.com/grandyang/LeetCode-All-In-One/issues/224)|15.80%|Medium| -|223|[Rectangle Area](https://github.com/grandyang/LeetCode-All-In-One/issues/223)|25.60%|Easy| -|222|[Count Complete Tree Nodes](https://github.com/grandyang/LeetCode-All-In-One/issues/222)|19.40%|Medium| -|221|[Maximal Square](https://github.com/grandyang/LeetCode-All-In-One/issues/221)|20.30%|Medium| -|220|[Contains Duplicate III](https://github.com/grandyang/LeetCode-All-In-One/issues/220)|15.30%|Medium| -|219|[Contains Duplicate II](https://github.com/grandyang/LeetCode-All-In-One/issues/219)|25.60%|Easy| -|218|[The Skyline Problem](https://github.com/grandyang/LeetCode-All-In-One/issues/218)|16.20%|Hard| -|217|[Contains Duplicate](https://github.com/grandyang/LeetCode-All-In-One/issues/217)|35.90%|Easy| -|216|[Combination Sum III](https://github.com/grandyang/LeetCode-All-In-One/issues/216)|27.70%|Medium| -|215|[Kth Largest Element in an Array](https://github.com/grandyang/LeetCode-All-In-One/issues/215)|27.30%|Medium| -|214|[Shortest Palindrome](https://github.com/grandyang/LeetCode-All-In-One/issues/214)|16.80%|Hard| -|213|[House Robber II](https://github.com/grandyang/LeetCode-All-In-One/issues/213)|26.30%|Medium| -|212|[Word Search II](https://github.com/grandyang/LeetCode-All-In-One/issues/212)|15.00%|Hard| -|211|[Add and Search Word - Data structure design](https://github.com/grandyang/LeetCode-All-In-One/issues/211)|20.70%|Medium| -|210|[Course Schedule II](https://github.com/grandyang/LeetCode-All-In-One/issues/210)|19.30%|Medium| -|209|[Minimum Size Subarray Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/209)|22.90%|Medium| -|208|[Implement Trie (Prefix Tree)](https://github.com/grandyang/LeetCode-All-In-One/issues/208)|24.80%|Medium| -|207|[Course Schedule](https://github.com/grandyang/LeetCode-All-In-One/issues/207)|21.70%|Medium| -|206|[Reverse Linked List](https://github.com/grandyang/LeetCode-All-In-One/issues/206)|31.50%|Easy| -|205|[Isomorphic Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/205)|24.20%|Easy| -|204|[Count Primes](https://github.com/grandyang/LeetCode-All-In-One/issues/204)|19.00%|Easy| -|203|[Remove Linked List Elements](https://github.com/grandyang/LeetCode-All-In-One/issues/203)|25.80%|Easy| -|202|[Happy Number](https://github.com/grandyang/LeetCode-All-In-One/issues/202)|31.40%|Easy| -|201|[Bitwise AND of Numbers Range](https://github.com/grandyang/LeetCode-All-In-One/issues/201)|23.30%|Medium| -|200|[Number of Islands](https://github.com/grandyang/LeetCode-All-In-One/issues/200)|21.90%|Medium| -|199|[Binary Tree Right Side View](https://github.com/grandyang/LeetCode-All-In-One/issues/199)|27.10%|Medium| -|198|[House Robber](https://github.com/grandyang/LeetCode-All-In-One/issues/198)|28.80%|Easy| -|197|[Rising Temperature](https://github.com/grandyang/LeetCode-All-In-One/issues/197) *|25.90%|Easy| -|196|[Delete Duplicate Emails](https://github.com/grandyang/LeetCode-All-In-One/issues/196) *|19.00%|Easy| -|195|[Tenth Line](https://github.com/grandyang/LeetCode-All-In-One/issues/195) #|32.20%|Easy| -|194|[Transpose File](https://github.com/grandyang/LeetCode-All-In-One/issues/194) #|21.40%|Medium| -|193|[Valid Phone Numbers](https://github.com/grandyang/LeetCode-All-In-One/issues/193) #|24.40%|Easy| -|192|[Word Frequency](https://github.com/grandyang/LeetCode-All-In-One/issues/192) #|26.10%|Medium| -|191|[Number of 1 Bits](https://github.com/grandyang/LeetCode-All-In-One/issues/191)|37.30%|Easy| -|190|[Reverse Bits](https://github.com/grandyang/LeetCode-All-In-One/issues/190)|28.40%|Easy| -|189|[Rotate Array](https://github.com/grandyang/LeetCode-All-In-One/issues/189)|17.80%|Easy| -|188|[Best Time to Buy and Sell Stock IV](https://github.com/grandyang/LeetCode-All-In-One/issues/188)|17.30%|Hard| -|187|[Repeated DNA Sequences](https://github.com/grandyang/LeetCode-All-In-One/issues/187)|19.50%|Medium| -|186|[Reverse Words in a String II](https://github.com/grandyang/LeetCode-All-In-One/issues/186) $|31.10%|Medium| -|185|[Department Top Three Salaries](https://github.com/grandyang/LeetCode-All-In-One/issues/185) *|15.20%|Hard| -|184|[Department Highest Salary](https://github.com/grandyang/LeetCode-All-In-One/issues/184) *|19.00%|Medium| -|183|[Customers Who Never Order](https://github.com/grandyang/LeetCode-All-In-One/issues/183) *|33.70%|Easy| -|182|[Duplicate Emails](https://github.com/grandyang/LeetCode-All-In-One/issues/182) *|38.10%|Easy| -|181|[Employees Earning More Than Their Managers](https://github.com/grandyang/LeetCode-All-In-One/issues/181) *|41.00%|Easy| -|180|[Consecutive Numbers](https://github.com/grandyang/LeetCode-All-In-One/issues/180) *|26.60%|Medium| -|179|[Largest Number](https://github.com/grandyang/LeetCode-All-In-One/issues/179)|15.70%|Medium| -|178|[Rank Scores](https://github.com/grandyang/LeetCode-All-In-One/issues/178) *|24.60%|Medium| -|177|[Nth Highest Salary](https://github.com/grandyang/LeetCode-All-In-One/issues/177) *|16.30%|Medium| -|176|[Second Highest Salary](https://github.com/grandyang/LeetCode-All-In-One/issues/176) *|25.00%|Easy| -|175|[Combine Two Tables](https://github.com/grandyang/LeetCode-All-In-One/issues/175) *|34.40%|Easy| -|174|[Dungeon Game](https://github.com/grandyang/LeetCode-All-In-One/issues/174)|17.70%|Hard| -|173|[Binary Search Tree Iterator](https://github.com/grandyang/LeetCode-All-In-One/issues/173)|29.30%|Medium| -|172|[Factorial Trailing Zeroes](https://github.com/grandyang/LeetCode-All-In-One/issues/172)|28.40%|Easy| -|171|[Excel Sheet Column Number](https://github.com/grandyang/LeetCode-All-In-One/issues/171)|36.50%|Easy| -|170|[Two Sum III - Data structure design](https://github.com/grandyang/LeetCode-All-In-One/issues/170) $|24.70%|Easy| -|169|[Majority Element](https://github.com/grandyang/LeetCode-All-In-One/issues/169)|35.00%|Easy| -|168|[Excel Sheet Column Title](https://github.com/grandyang/LeetCode-All-In-One/issues/168)|18.10%|Easy| -|167|[Two Sum II - Input array is sorted](https://github.com/grandyang/LeetCode-All-In-One/issues/167) $|43.30%|Medium| -|166|[Fraction to Recurring Decimal](https://github.com/grandyang/LeetCode-All-In-One/issues/166)|12.70%|Medium| -|165|[Compare Version Numbers](https://github.com/grandyang/LeetCode-All-In-One/issues/165)|15.20%|Easy| -|164|[Maximum Gap](https://github.com/grandyang/LeetCode-All-In-One/issues/164)|24.40%|Hard| -|163|[Missing Ranges](https://github.com/grandyang/LeetCode-All-In-One/issues/163) $|24.10%|Medium| -|162|[Find Peak Element](https://github.com/grandyang/LeetCode-All-In-One/issues/162)|31.50%|Medium| -|161|[One Edit Distance](https://github.com/grandyang/LeetCode-All-In-One/issues/161) $|24.00%|Medium| -|160|[Intersection of Two Linked Lists](https://github.com/grandyang/LeetCode-All-In-One/issues/160)|28.70%|Easy| -|159|[Longest Substring with At Most Two Distinct Characters](https://github.com/grandyang/LeetCode-All-In-One/issues/159) $|30.20%|Hard| -|158|[Read N Characters Given Read4 II - Call multiple times](https://github.com/grandyang/LeetCode-All-In-One/issues/158) $|22.30%|Hard| -|157|[Read N Characters Given Read4](https://github.com/grandyang/LeetCode-All-In-One/issues/157) $|29.80%|Easy| -|156|[Binary Tree Upside Down](https://github.com/grandyang/LeetCode-All-In-One/issues/156) $|34.30%|Medium| -|155|[Min Stack](https://github.com/grandyang/LeetCode-All-In-One/issues/155)|18.50%|Easy| -|154|[Find Minimum in Rotated Sorted Array II](https://github.com/grandyang/LeetCode-All-In-One/issues/154)|31.90%|Hard| -|153|[Find Minimum in Rotated Sorted Array](https://github.com/grandyang/LeetCode-All-In-One/issues/153)|33.30%|Medium| -|152|[Maximum Product Subarray](https://github.com/grandyang/LeetCode-All-In-One/issues/152)|19.40%|Medium| -|151|[Reverse Words in a String](https://github.com/grandyang/LeetCode-All-In-One/issues/151)|15.10%|Medium| -|150|[Evaluate Reverse Polish Notation](https://github.com/grandyang/LeetCode-All-In-One/issues/150)|21.10%|Medium| -|149|[Max Points on a Line](https://github.com/grandyang/LeetCode-All-In-One/issues/149)|12.60%|Hard| -|148|[Sort List](https://github.com/grandyang/LeetCode-All-In-One/issues/148)|22.00%|Medium| -|147|[Insertion Sort List](https://github.com/grandyang/LeetCode-All-In-One/issues/147)|26.40%|Medium| -|146|[LRU Cache](https://github.com/grandyang/LeetCode-All-In-One/issues/146)|15.00%|Hard| -|145|[Binary Tree Postorder Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/145)|32.40%|Hard| -|144|[Binary Tree Preorder Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/144)|36.30%|Medium| -|143|[Reorder List](https://github.com/grandyang/LeetCode-All-In-One/issues/143)|21.00%|Medium| -|142|[Linked List Cycle II](https://github.com/grandyang/LeetCode-All-In-One/issues/142)|31.40%|Medium| -|141|[Linked List Cycle](https://github.com/grandyang/LeetCode-All-In-One/issues/141)|36.30%|Medium| -|140|[Word Break II](https://github.com/grandyang/LeetCode-All-In-One/issues/140)|17.70%|Hard| -|139|[Word Break](https://github.com/grandyang/LeetCode-All-In-One/issues/139)|23.00%|Medium| -|138|[Copy List with Random Pointer](https://github.com/grandyang/LeetCode-All-In-One/issues/138)|25.10%|Hard| -|137|[Single Number II](https://github.com/grandyang/LeetCode-All-In-One/issues/137)|35.00%|Medium| -|136|[Single Number](https://github.com/grandyang/LeetCode-All-In-One/issues/136)|45.10%|Medium| -|135|[Candy](https://github.com/grandyang/LeetCode-All-In-One/issues/135)|20.50%|Hard| -|134|[Gas Station](https://github.com/grandyang/LeetCode-All-In-One/issues/134)|25.70%|Medium| -|133|[Clone Graph](https://github.com/grandyang/LeetCode-All-In-One/issues/133)|24.00%|Medium| -|132|[Palindrome Partitioning II](https://github.com/grandyang/LeetCode-All-In-One/issues/132)|19.70%|Hard| -|131|[Palindrome Partitioning](https://github.com/grandyang/LeetCode-All-In-One/issues/131)|26.70%|Medium| -|130|[Surrounded Regions](https://github.com/grandyang/LeetCode-All-In-One/issues/130)|14.60%|Medium| -|129|[Sum Root to Leaf Numbers](https://github.com/grandyang/LeetCode-All-In-One/issues/129)|30.30%|Medium| -|128|[Longest Consecutive Sequence](https://github.com/grandyang/LeetCode-All-In-One/issues/128)|29.40%|Hard| -|127|[Word Ladder](https://github.com/grandyang/LeetCode-All-In-One/issues/127)|19.30%|Medium| -|126|[Word Ladder II](https://github.com/grandyang/LeetCode-All-In-One/issues/126)|12.90%|Hard| -|125|[Valid Palindrome](https://github.com/grandyang/LeetCode-All-In-One/issues/125)|22.00%|Easy| -|124|[Binary Tree Maximum Path Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/124)|21.50%|Hard| -|123|[Best Time to Buy and Sell Stock III](https://github.com/grandyang/LeetCode-All-In-One/issues/123)|23.90%|Hard| -|122|[Best Time to Buy and Sell Stock II](https://github.com/grandyang/LeetCode-All-In-One/issues/122)|38.30%|Medium| -|121|[Best Time to Buy and Sell Stock](https://github.com/grandyang/LeetCode-All-In-One/issues/121)|32.60%|Medium| -|120|[Triangle](https://github.com/grandyang/LeetCode-All-In-One/issues/120)|27.40%|Medium| -|119|[Pascal's Triangle II](https://github.com/grandyang/LeetCode-All-In-One/issues/119)|29.40%|Easy| -|118|[Pascal's Triangle](https://github.com/grandyang/LeetCode-All-In-One/issues/118)|30.10%|Easy| -|117|[Populating Next Right Pointers in Each Node II](https://github.com/grandyang/LeetCode-All-In-One/issues/117)|32.00%|Hard| -|116|[Populating Next Right Pointers in Each Node](https://github.com/grandyang/LeetCode-All-In-One/issues/116)|36.20%|Medium| -|115|[Distinct Subsequences](https://github.com/grandyang/LeetCode-All-In-One/issues/115)|26.30%|Hard| -|114|[Flatten Binary Tree to Linked List](https://github.com/grandyang/LeetCode-All-In-One/issues/114)|28.80%|Medium| -|113|[Path Sum II](https://github.com/grandyang/LeetCode-All-In-One/issues/113)|26.60%|Medium| -|112|[Path Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/112)|29.80%|Easy| -|111|[Minimum Depth of Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/111)|29.10%|Easy| -|110|[Balanced Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/110)|32.00%|Easy| -|109|[Convert Sorted List to Binary Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/109)|27.90%|Medium| -|108|[Convert Sorted Array to Binary Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/108)|34.00%|Medium| -|107|[Binary Tree Level Order Traversal II](https://github.com/grandyang/LeetCode-All-In-One/issues/107)|31.10%|Easy| -|106|[Construct Binary Tree from Inorder and Postorder Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/106)|26.80%|Medium| -|105|[Construct Binary Tree from Preorder and Inorder Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/105)|26.40%|Medium| -|104|[Maximum Depth of Binary Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/104)|45.10%|Easy| -|103|[Binary Tree Zigzag Level Order Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/103)|26.40%|Medium| -|102|[Binary Tree Level Order Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/102)|29.30%|Easy| -|101|[Symmetric Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/101)|31.60%|Easy| -|100|[Same Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/100)|41.80%|Easy| -|99|[Recover Binary Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/99)|24.30%|Hard| -|98|[Validate Binary Search Tree](https://github.com/grandyang/LeetCode-All-In-One/issues/98)|20.60%|Medium| -|97|[Interleaving String](https://github.com/grandyang/LeetCode-All-In-One/issues/97)|20.80%|Hard| -|96|[Unique Binary Search Trees](https://github.com/grandyang/LeetCode-All-In-One/issues/96)|36.00%|Medium| -|95|[Unique Binary Search Trees II](https://github.com/grandyang/LeetCode-All-In-One/issues/95)|28.00%|Medium| -|94|[Binary Tree Inorder Traversal](https://github.com/grandyang/LeetCode-All-In-One/issues/94)|36.20%|Medium| -|93|[Restore IP Addresses](https://github.com/grandyang/LeetCode-All-In-One/issues/93)|21.00%|Medium| -|92|[Reverse Linked List II](https://github.com/grandyang/LeetCode-All-In-One/issues/92)|26.10%|Medium| -|91|[Decode Ways](https://github.com/grandyang/LeetCode-All-In-One/issues/91)|16.40%|Medium| -|90|[Subsets II](https://github.com/grandyang/LeetCode-All-In-One/issues/90)|27.70%|Medium| -|89|[Gray Code](https://github.com/grandyang/LeetCode-All-In-One/issues/89)|32.80%|Medium| -|88|[Merge Sorted Array](https://github.com/grandyang/LeetCode-All-In-One/issues/88)|29.70%|Easy| -|87|[Scramble String](https://github.com/grandyang/LeetCode-All-In-One/issues/87)|24.20%|Hard| -|86|[Partition List](https://github.com/grandyang/LeetCode-All-In-One/issues/86)|27.50%|Medium| -|85|[Maximal Rectangle](https://github.com/grandyang/LeetCode-All-In-One/issues/85)|22.00%|Hard| -|84|[Largest Rectangle in Histogram](https://github.com/grandyang/LeetCode-All-In-One/issues/84)|22.60%|Hard| -|83|[Remove Duplicates from Sorted List](https://github.com/grandyang/LeetCode-All-In-One/issues/83)|34.50%|Easy| -|82|[Remove Duplicates from Sorted List II](https://github.com/grandyang/LeetCode-All-In-One/issues/82)|25.00%|Medium| -|81|[Search in Rotated Sorted Array II](https://github.com/grandyang/LeetCode-All-In-One/issues/81)|31.40%|Medium| -|80|[Remove Duplicates from Sorted Array II](https://github.com/grandyang/LeetCode-All-In-One/issues/80)|30.50%|Medium| -|79|[Word Search](https://github.com/grandyang/LeetCode-All-In-One/issues/79)|20.30%|Medium| -|78|[Subsets](https://github.com/grandyang/LeetCode-All-In-One/issues/78)|28.20%|Medium| -|77|[Combinations](https://github.com/grandyang/LeetCode-All-In-One/issues/77)|30.90%|Medium| -|76|[Minimum Window Substring](https://github.com/grandyang/LeetCode-All-In-One/issues/76)|18.90%|Hard| -|75|[Sort Colors](https://github.com/grandyang/LeetCode-All-In-One/issues/75)|32.60%|Medium| -|74|[Search a 2D Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/74)|31.60%|Medium| -|73|[Set Matrix Zeroes](https://github.com/grandyang/LeetCode-All-In-One/issues/73)|31.40%|Medium| -|72|[Edit Distance](https://github.com/grandyang/LeetCode-All-In-One/issues/72)|26.20%|Hard| -|71|[Simplify Path](https://github.com/grandyang/LeetCode-All-In-One/issues/71)|20.00%|Medium| -|70|[Climbing Stairs](https://github.com/grandyang/LeetCode-All-In-One/issues/70)|34.40%|Easy| -|69|[Sqrt(x)](https://github.com/grandyang/LeetCode-All-In-One/issues/69)|23.10%|Medium| -|68|[Text Justification](https://github.com/grandyang/LeetCode-All-In-One/issues/68)|14.60%|Hard| -|67|[Add Binary](https://github.com/grandyang/LeetCode-All-In-One/issues/67)|24.70%|Easy| -|66|[Plus One](https://github.com/grandyang/LeetCode-All-In-One/issues/66)|30.40%|Easy| -|65|[Valid Number](https://github.com/grandyang/LeetCode-All-In-One/issues/65)|11.40%|Hard| -|64|[Minimum Path Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/64)|32.20%|Medium| -|63|[Unique Paths II](https://github.com/grandyang/LeetCode-All-In-One/issues/63)|28.00%|Medium| -|62|[Unique Paths](https://github.com/grandyang/LeetCode-All-In-One/issues/62)|32.80%|Medium| -|61|[Rotate List](https://github.com/grandyang/LeetCode-All-In-One/issues/61)|21.70%|Medium| -|60|[Permutation Sequence](https://github.com/grandyang/LeetCode-All-In-One/issues/60)|22.80%|Medium| -|59|[Spiral Matrix II](https://github.com/grandyang/LeetCode-All-In-One/issues/59)|31.80%|Medium| -|58|[Length of Last Word](https://github.com/grandyang/LeetCode-All-In-One/issues/58)|28.00%|Easy| -|57|[Insert Interval](https://github.com/grandyang/LeetCode-All-In-One/issues/57)|21.40%|Hard| -|56|[Merge Intervals](https://github.com/grandyang/LeetCode-All-In-One/issues/56)|22.40%|Hard| -|55|[Jump Game](https://github.com/grandyang/LeetCode-All-In-One/issues/55)|27.00%|Medium| -|54|[Spiral Matrix](https://github.com/grandyang/LeetCode-All-In-One/issues/54)|20.80%|Medium| -|53|[Maximum Subarray](https://github.com/grandyang/LeetCode-All-In-One/issues/53)|34.50%|Medium| -|52|[N-Queens II](https://github.com/grandyang/LeetCode-All-In-One/issues/52)|35.80%|Hard| -|51|[N-Queens](https://github.com/grandyang/LeetCode-All-In-One/issues/51)|26.50%|Hard| -|50|"Pow(x| n)"|26.70%| -|49|[Anagrams](https://github.com/grandyang/LeetCode-All-In-One/issues/49)|24.30%|Medium| -|48|[Rotate Image](https://github.com/grandyang/LeetCode-All-In-One/issues/48)|31.90%|Medium| -|47|[Permutations II](https://github.com/grandyang/LeetCode-All-In-One/issues/47)|25.80%|Hard| -|46|[Permutations](https://github.com/grandyang/LeetCode-All-In-One/issues/46)|31.90%|Medium| -|45|[Jump Game II](https://github.com/grandyang/LeetCode-All-In-One/issues/45)|24.20%|Hard| -|44|[Wildcard Matching](https://github.com/grandyang/LeetCode-All-In-One/issues/44)|15.00%|Hard| -|43|[Multiply Strings](https://github.com/grandyang/LeetCode-All-In-One/issues/43)|21.00%|Medium| -|42|[Trapping Rain Water](https://github.com/grandyang/LeetCode-All-In-One/issues/42)|30.00%|Hard| -|41|[First Missing Positive](https://github.com/grandyang/LeetCode-All-In-One/issues/41)|22.90%|Hard| -|40|[Combination Sum II](https://github.com/grandyang/LeetCode-All-In-One/issues/40)|25.20%|Medium| -|39|[Combination Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/39)|27.90%|Medium| -|38|[Count and Say](https://github.com/grandyang/LeetCode-All-In-One/issues/38)|25.20%|Easy| -|37|[Sudoku Solver](https://github.com/grandyang/LeetCode-All-In-One/issues/37)|21.80%|Hard| -|36|[Valid Sudoku](https://github.com/grandyang/LeetCode-All-In-One/issues/36)|27.20%|Easy| -|35|[Search Insert Position](https://github.com/grandyang/LeetCode-All-In-One/issues/35)|35.40%|Medium| -|34|[Search for a Range](https://github.com/grandyang/LeetCode-All-In-One/issues/34)|27.50%|Medium| -|33|[Search in Rotated Sorted Array](https://github.com/grandyang/LeetCode-All-In-One/issues/33)|28.80%|Hard| -|32|[Longest Valid Parentheses](https://github.com/grandyang/LeetCode-All-In-One/issues/32)|20.90%|Hard| -|31|[Next Permutation](https://github.com/grandyang/LeetCode-All-In-One/issues/31)|25.00%|Medium| -|30|[Substring with Concatenation of All Words](https://github.com/grandyang/LeetCode-All-In-One/issues/30)|19.40%|Hard| -|29|[Divide Two Integers](https://github.com/grandyang/LeetCode-All-In-One/issues/29)|15.00%|Medium| -|28|[Implement strStr()](https://github.com/grandyang/LeetCode-All-In-One/issues/28)|22.20%|Easy| -|27|[Remove Element](https://github.com/grandyang/LeetCode-All-In-One/issues/27)|32.10%|Easy| -|26|[Remove Duplicates from Sorted Array](https://github.com/grandyang/LeetCode-All-In-One/issues/26)|31.30%|Easy| -|25|[Reverse Nodes in k-Group](https://github.com/grandyang/LeetCode-All-In-One/issues/25)|25.50%|Hard| -|24|[Swap Nodes in Pairs](https://github.com/grandyang/LeetCode-All-In-One/issues/24)|32.50%|Medium| -|23|[Merge k Sorted Lists](https://github.com/grandyang/LeetCode-All-In-One/issues/23)|21.10%|Hard| -|22|[Generate Parentheses](https://github.com/grandyang/LeetCode-All-In-One/issues/22)|32.60%|Medium| -|21|[Merge Two Sorted Lists](https://github.com/grandyang/LeetCode-All-In-One/issues/21)|32.70%|Easy| -|20|[Valid Parentheses](https://github.com/grandyang/LeetCode-All-In-One/issues/20)|26.50%|Easy| -|19|[Remove Nth Node From End of List](https://github.com/grandyang/LeetCode-All-In-One/issues/19)|27.10%|Easy| -|18|[4Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/18)|21.70%|Medium| -|17|[Letter Combinations of a Phone Number](https://github.com/grandyang/LeetCode-All-In-One/issues/17)|25.80%|Medium| -|16|[3Sum Closest](https://github.com/grandyang/LeetCode-All-In-One/issues/16)|26.90%|Medium| -|15|[3Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/15)|16.90%|Medium| -|14|[Longest Common Prefix](https://github.com/grandyang/LeetCode-All-In-One/issues/14)|25.50%|Easy| -|13|[Roman to Integer](https://github.com/grandyang/LeetCode-All-In-One/issues/13)|34.00%|Easy| -|12|[Integer to Roman](https://github.com/grandyang/LeetCode-All-In-One/issues/12)|33.80%|Medium| -|11|[Container With Most Water](https://github.com/grandyang/LeetCode-All-In-One/issues/11)|32.00%|Medium| -|10|[Regular Expression Matching](https://github.com/grandyang/LeetCode-All-In-One/issues/10)|20.70%|Hard| -|9|[Palindrome Number](https://github.com/grandyang/LeetCode-All-In-One/issues/9)|28.30%|Easy| -|8|[String to Integer (atoi)](https://github.com/grandyang/LeetCode-All-In-One/issues/8)|13.00%|Easy| -|7|[Reverse Integer](https://github.com/grandyang/LeetCode-All-In-One/issues/7)|25.10%|Easy| -|6|[ZigZag Conversion](https://github.com/grandyang/LeetCode-All-In-One/issues/6)|21.80%|Easy| -|5|[Longest Palindromic Substring](https://github.com/grandyang/LeetCode-All-In-One/issues/5)|20.70%|Medium| -|4|[Median of Two Sorted Arrays](https://github.com/grandyang/LeetCode-All-In-One/issues/4)|17.40%|Hard| -|3|[Longest Substring Without Repeating Characters](https://github.com/grandyang/LeetCode-All-In-One/issues/3)|20.60%|Medium| -|2|[Add Two Numbers](https://github.com/grandyang/LeetCode-All-In-One/issues/2)|21.10%|Medium| -|1|[Two Sum](https://github.com/grandyang/LeetCode-All-In-One/issues/1)|17.70%|Medium| +|569|[Median Employee Salary ](https://github.com/grandyang/leetcode/issues/569) $|41.60%|Hard| +|568|[Maximum Vacation Days](https://github.com/grandyang/leetcode/issues/568) $|39.90%|Hard| +|567|[Permutation in String](https://github.com/grandyang/leetcode/issues/567)|36.30%|Medium| +|566|[Reshape the Matrix](https://github.com/grandyang/leetcode/issues/566)|59.80%|Easy| +|565|[Array Nesting](https://github.com/grandyang/leetcode/issues/565)|50.00%|Medium| +|564|[Find the Closest Palindrome](https://github.com/grandyang/leetcode/issues/564)|16.60%|Hard| +|563|[Binary Tree Tilt](https://github.com/grandyang/leetcode/issues/563)|47.00%|Easy| +|562|[Longest Line of Consecutive One in Matrix](https://github.com/grandyang/leetcode/issues/562) $|38.80%|Medium| +|561|[Array Partition I](https://github.com/grandyang/leetcode/issues/561)|69.80%|Easy| +|560|[Subarray Sum Equals K](https://github.com/grandyang/leetcode/issues/560)|41.80%|Medium| +|559|[Maximum Depth of N-ary Tree](https://github.com/grandyang/leetcode/issues/559)|62.10%|Easy| +|558|[Quad Tree Intersection](https://github.com/grandyang/leetcode/issues/558)|36.40%|Easy| +|557|[Reverse Words in a String III](https://github.com/grandyang/leetcode/issues/557)|61.20%|Easy| +|556|[Next Greater Element III](https://github.com/grandyang/leetcode/issues/556)|27.70%|Medium| +|555|[Split Concatenated Strings](https://github.com/grandyang/leetcode/issues/555) $|30.00%|Medium| +|554|[Brick Wall](https://github.com/grandyang/leetcode/issues/554)|42.70%|Medium| +|553|[Optimal Division](https://github.com/grandyang/leetcode/issues/553)|55.20%|Medium| +|552|[Student Attendance Record II](https://github.com/grandyang/leetcode/issues/552)|28.50%|Hard| +|551|[Student Attendance Record I](https://github.com/grandyang/leetcode/issues/551)|43.90%|Easy| +|549|[Binary Tree Longest Consecutive Sequence II](https://github.com/grandyang/leetcode/issues/549) $|38.10%|Medium| +|548|[Split Array with Equal Sum](https://github.com/grandyang/leetcode/issues/548) $|30.80%|Medium| +|547|[Friend Circles](https://github.com/grandyang/leetcode/issues/547)|49.00%|Medium| +|546|[Remove Boxes](https://github.com/grandyang/leetcode/issues/546)|29.60%|Hard| +|545|[Boundary of Binary Tree](https://github.com/grandyang/leetcode/issues/545) $|29.10%|Medium| +|544|[Output Contest Matches](https://github.com/grandyang/leetcode/issues/544) $|73.20%|Medium| +|543|[Diameter of Binary Tree](https://github.com/grandyang/leetcode/issues/543)|42.70%|Easy| +|542|[01 Matrix](https://github.com/grandyang/leetcode/issues/542)|32.50%|Medium| +|541|[Reverse String II](https://github.com/grandyang/leetcode/issues/541)|44.40%|Easy| +|540|[Single Element in a Sorted Array](https://github.com/grandyang/leetcode/issues/540)|55.90%|Medium| +|539|[Minimum Time Difference](https://github.com/grandyang/leetcode/issues/539)|44.70%|Medium| +|538|[Convert BST to Greater Tree](https://github.com/grandyang/leetcode/issues/538)|52.70%|Medium| +|537|[Complex Number Multiplication](https://github.com/grandyang/leetcode/issues/537)|65.90%|Medium| +|536|[Construct Binary Tree from String](https://github.com/grandyang/leetcode/issues/536) $|36.30%|Medium| +|535|[Encode and Decode TinyURL](https://github.com/grandyang/leetcode/issues/535)|76.10%|Medium| +|534|Game Play Analysis III|67.10%|Medium| +|533|[Lonely Pixel II](https://github.com/grandyang/leetcode/issues/533) $|38.90%|Medium| +|532|[K-diff Pairs in an Array](https://github.com/grandyang/leetcode/issues/532)|27.20%|Easy| +|531|[Lonely Pixel I](https://github.com/grandyang/leetcode/issues/531) $|50.20%|Medium| +|530|[Minimum Absolute Difference in BST](https://github.com/grandyang/leetcode/issues/530)|48.00%|Easy| +|529|[Minesweeper](https://github.com/grandyang/leetcode/issues/529)|52.00%|Medium| +|528|[Random Pick with Weight](https://github.com/grandyang/leetcode/issues/528)|41.80%|Medium| +|527|[Word Abbreviation](https://github.com/grandyang/leetcode/issues/527) $|33.90%|Hard| +|526|[Beautiful Arrangement](https://github.com/grandyang/leetcode/issues/526)|53.50%|Medium| +|525|[Contiguous Array](https://github.com/grandyang/leetcode/issues/525)|34.40%|Medium| +|524|[Longest Word in Dictionary through Deleting](https://github.com/grandyang/leetcode/issues/524)|40.20%|Medium| +|523|[Continuous Subarray Sum](https://github.com/grandyang/leetcode/issues/523)|21.30%|Medium| +|522|[Longest Uncommon Subsequence II](https://github.com/grandyang/leetcode/issues/522)|28.10%|Medium| +|521|[Longest Uncommon Subsequence I](https://github.com/grandyang/leetcode/issues/521)|50.70%|Easy| +|520|[Detect Capital](https://github.com/grandyang/leetcode/issues/520)|54.20%|Easy| +|519|[Random Flip Matrix](https://github.com/grandyang/leetcode/issues/519)|32.20%|Medium| +|518|[Coin Change 2](https://github.com/grandyang/leetcode/issues/518)|33.20%|Medium| +|517|[Super Washing Machines](https://github.com/grandyang/leetcode/issues/517)|34.60%|Hard| +|516|[Longest Palindromic Subsequence](https://github.com/grandyang/leetcode/issues/516)|42.00%|Medium| +|515|[Find Largest Value in Each Tree Row](https://github.com/grandyang/leetcode/issues/515)|52.70%|Medium| +|514|[Freedom Trail](https://github.com/grandyang/leetcode/issues/514)|27.20%|Hard| +|513|[Find Bottom Left Tree Value](https://github.com/grandyang/leetcode/issues/513)|55.60%|Medium| +|510|[Inorder Successor in BST II](https://github.com/grandyang/leetcode/issues/510) $|56.20%|Medium| +|509|[Fibonacci Number](https://github.com/grandyang/leetcode/issues/509)|66.40%|Easy| +|508|[Most Frequent Subtree Sum](https://github.com/grandyang/leetcode/issues/508)|52.00%|Medium| +|507|[Perfect Number](https://github.com/grandyang/leetcode/issues/507)|32.70%|Easy| +|506|[Relative Ranks](https://github.com/grandyang/leetcode/issues/506)|48.50%|Easy| +|505|[The Maze II](https://github.com/grandyang/leetcode/issues/505)|34.80%|Medium| +|504|[Base 7](https://github.com/grandyang/leetcode/issues/504)|46.40%|Easy| +|503|[Next Greater Element II](https://github.com/grandyang/leetcode/issues/503)|46.20%|Medium| +|502|[IPO](https://github.com/grandyang/leetcode/issues/502)|32.40%|Hard| +|501|[Find Mode in Binary Search Tree](https://github.com/grandyang/leetcode/issues/501)|39.40%|Easy| +|500|[Keyboard Row](https://github.com/grandyang/leetcode/issues/500)|60.20%|Easy| +|499|[The Maze III](https://github.com/grandyang/leetcode/issues/499)|32.00%|Hard| +|498|[Diagonal Traverse](https://github.com/grandyang/leetcode/issues/498)|46.20%|Medium| +|497|[Random Point in Non-overlapping Rectangles](https://github.com/grandyang/leetcode/issues/497)|33.20%|Medium| +|496|[Next Greater Element I](https://github.com/grandyang/leetcode/issues/496)|58.80%|Easy| +|495|[Teemo Attacking](https://github.com/grandyang/leetcode/issues/495)|51.90%|Medium| +|494|[Target Sum](https://github.com/grandyang/leetcode/issues/494)|44.40%|Medium| +|493|[Reverse Pairs](https://github.com/grandyang/leetcode/issues/493)|17.10%|Hard| +|492|[Construct the Rectangle](https://github.com/grandyang/leetcode/issues/492)|49.70%|Easy| +|491|[Increasing Subsequences](https://github.com/grandyang/leetcode/issues/491)|39.30%|Medium| +|490|[The Maze](https://github.com/grandyang/leetcode/issues/490)|42.80%|Medium| +|489|[Robot Room Cleaner](https://github.com/grandyang/leetcode/issues/489)|57.10%|Hard| +|488|[Zuma Game](https://github.com/grandyang/leetcode/issues/488)|38.00%|Hard| +|487|[Max Consecutive Ones II](https://github.com/grandyang/leetcode/issues/487) $|42.70%|Medium| +|486|[Predict the Winner](https://github.com/grandyang/leetcode/issues/486)|43.60%|Medium| +|485|[Max Consecutive Ones](https://github.com/grandyang/leetcode/issues/485)|55.30%|Easy| +|484|[Find Permutation](https://github.com/grandyang/leetcode/issues/484) $|50.50%|Medium| +|483|[Smallest Good Base](https://github.com/grandyang/leetcode/issues/483)|30.60%|Hard| +|482|[License Key Formatting](https://github.com/grandyang/leetcode/issues/482)|41.20%|Medium| +|481|[Magical String](https://github.com/grandyang/leetcode/issues/481)|46.20%|Medium| +|480|[Sliding Window Median](https://github.com/grandyang/leetcode/issues/480)|31.00%|Hard| +|479|[Largest Palindrome Product](https://github.com/grandyang/leetcode/issues/479)|23.90%|Easy| +|478|[Generate Random Point in a Circle](https://github.com/grandyang/leetcode/issues/478)|33.80%|Medium| +|477|[Total Hamming Distance](https://github.com/grandyang/leetcode/issues/477)|44.10%|Medium| +|476|[Number Complement](https://github.com/grandyang/leetcode/issues/476)|61.20%|Easy| +|475|[Heaters](https://github.com/grandyang/leetcode/issues/475)|30.20%|Easy| +|474|[Ones and Zeroes](https://github.com/grandyang/leetcode/issues/474)|34.90%|Medium| +|473|[Matchsticks to Square](https://github.com/grandyang/leetcode/issues/473)|31.80%|Medium| +|472|[Concatenated Words](https://github.com/grandyang/leetcode/issues/472)|29.20%|Hard| +|471|[Encode String with Shortest Length](https://github.com/grandyang/leetcode/issues/471) $|43.50%|Hard| +|470|[Implement Rand10() Using Rand7()](https://github.com/grandyang/leetcode/issues/470)|43.00%|Medium| +|469|[Convex Polygon](https://github.com/grandyang/leetcode/issues/469) $|27.20%|Medium| +|468|[Validate IP Address](https://github.com/grandyang/leetcode/issues/468)|22.10%|Medium| +|467|[Unique Substrings in Wraparound String](https://github.com/grandyang/leetcode/issues/467)|29.90%|Medium| +|466|[Count The Repetitions](https://github.com/grandyang/leetcode/issues/466)|24.20%|Hard| +|465|[Optimal Account Balancing](https://github.com/grandyang/leetcode/issues/465) $|29.20%|Hard| +|464|[Can I Win](https://github.com/grandyang/leetcode/issues/464)|22.20%|Medium| +|463|[Island Perimeter](https://github.com/grandyang/leetcode/issues/463)|56.70%|Easy| +|462|[Minimum Moves to Equal Array Elements II](https://github.com/grandyang/leetcode/issues/462)|50.90%|Medium| +|461|[Hamming Distance](https://github.com/grandyang/leetcode/issues/461)|73.20%|Easy| +|460|[LFU Cache](https://github.com/grandyang/leetcode/issues/460)|18.30%|Hard| +|459|[Repeated Substring Pattern](https://github.com/grandyang/leetcode/issues/459)|39.70%|Easy| +|458|[Poor Pigs](https://github.com/grandyang/leetcode/issues/458)|40.70%|Easy| +|457|[Circular Array Loop](https://github.com/grandyang/leetcode/issues/457)|20.60%|Medium| +|456|[132 Pattern](https://github.com/grandyang/leetcode/issues/456)|28.00%|Medium| +|455|[Assign Cookies](https://github.com/grandyang/leetcode/issues/455)|48.10%|Easy| +|454|[4Sum II](https://github.com/grandyang/leetcode/issues/454)|42.80%|Medium| +|453|[Minimum Moves to Equal Array Elements](https://github.com/grandyang/leetcode/issues/453)|46.30%|Easy| +|452|[Minimum Number of Arrows to Burst Balloons](https://github.com/grandyang/leetcode/issues/452)|42.10%|Medium| +|451|[Sort Characters By Frequency](https://github.com/grandyang/leetcode/issues/451)|50.90%|Medium| +|450|[Delete Node in a BST](https://github.com/grandyang/leetcode/issues/450)|34.50%|Medium| +|449|[Serialize and Deserialize BST](https://github.com/grandyang/leetcode/issues/449)|41.20%|Medium| +|448|[Find All Numbers Disappeared in an Array](https://github.com/grandyang/leetcode/issues/448)|58.30%|Easy| +|447|[Number of Boomerangs](https://github.com/grandyang/leetcode/issues/447)|42.20%|Easy| +|446|[Arithmetic Slices II - Subsequence](https://github.com/grandyang/leetcode/issues/446)|22.30%|Hard| +|445|[Add Two Numbers II](https://github.com/grandyang/leetcode/issues/445)|45.40%|Medium| +|444|[Sequence Reconstruction](https://github.com/grandyang/leetcode/issues/444) $|20.50%|Medium| +|443|[String Compression](https://github.com/grandyang/leetcode/issues/443)|35.80%|Easy| +|442|[Find All Duplicates in an Array](https://github.com/grandyang/leetcode/issues/442)|46.40%|Medium| +|441|[Arranging Coins](https://github.com/grandyang/leetcode/issues/441)|36.20%|Easy| +|440|[K-th Smallest in Lexicographical Order](https://github.com/grandyang/leetcode/issues/440)|21.50%|Hard| +|439|[Ternary Expression Parser](https://github.com/grandyang/leetcode/issues/439) $|49.40%|Medium| +|438|[Find All Anagrams in a String](https://github.com/grandyang/leetcode/issues/438)|33.50%|Easy| +|437|[Path Sum III](https://github.com/grandyang/leetcode/issues/437)|38.60%|Easy| +|436|[Find Right Interval](https://github.com/grandyang/leetcode/issues/436)|42.30%|Medium| +|435|[Non-overlapping Intervals](https://github.com/grandyang/leetcode/issues/435)|39.80%|Medium| +|434|[Number of Segments in a String](https://github.com/grandyang/leetcode/issues/434)|38.40%|Easy| +|433|[Minimum Genetic Mutation](https://github.com/grandyang/leetcode/issues/433)|33.50%|Medium| +|432|[All O`one Data Structure](https://github.com/grandyang/leetcode/issues/432)|28.30%|Hard| +|431|[Encode N-ary Tree to Binary Tree](https://github.com/grandyang/leetcode/issues/431) $|53.70%|Hard| +|430|[Flatten a Multilevel Doubly Linked List](https://github.com/grandyang/leetcode/issues/430)|36.20%|Medium| +|429|[N-ary Tree Level Order Traversal](https://github.com/grandyang/leetcode/issues/429)|55.80%|Easy| +|428|[Serialize and Deserialize N-ary Tree](https://github.com/grandyang/leetcode/issues/428) $|48.10%|Hard| +|427|[Construct Quad Tree](https://github.com/grandyang/leetcode/issues/427)|49.20%|Easy| +|426|[Convert Binary Search Tree to Sorted Doubly Linked List](https://github.com/grandyang/leetcode/issues/426)|43.30%|Medium| +|425|[Word Squares](https://github.com/grandyang/leetcode/issues/425) $|40.10%|Hard| +|424|[Longest Repeating Character Replacement](https://github.com/grandyang/leetcode/issues/424)|38.10%|Medium| +|423|[Reconstruct Original Digits from English](https://github.com/grandyang/leetcode/issues/423)|40.80%|Medium| +|422|[Valid Word Square](https://github.com/grandyang/leetcode/issues/422) $|36.40%|Easy| +|421|[Maximum XOR of Two Numbers in an Array](https://github.com/grandyang/leetcode/issues/421)|36.40%|Medium| +|420|[Strong Password Checker](https://github.com/grandyang/leetcode/issues/420)|22.10%|Hard| +|419|[Battleships in a Board](https://github.com/grandyang/leetcode/issues/419)|59.30%|Medium| +|418|[Sentence Screen Fitting](https://github.com/grandyang/leetcode/issues/418) $|25.10%|Medium| +|417|[Pacific Atlantic Water Flow](https://github.com/grandyang/leetcode/issues/417)|31.10%|Medium| +|416|[Partition Equal Subset Sum](https://github.com/grandyang/leetcode/issues/416)|36.80%|Medium| +|415|[Add Strings](https://github.com/grandyang/leetcode/issues/415)|41.50%|Easy| +|414|[Third Maximum Number](https://github.com/grandyang/leetcode/issues/414)|26.50%|Easy| +|413|[Arithmetic Slices](https://github.com/grandyang/leetcode/issues/413)|53.50%|Medium| +|412|[Fizz Buzz](https://github.com/grandyang/leetcode/issues/412)|57.50%|Easy| +|411|[Minimum Unique Word Abbreviation](https://github.com/grandyang/leetcode/issues/411) $|25.60%|Hard| +|410|[Split Array Largest Sum](https://github.com/grandyang/leetcode/issues/410)|25.00%|Hard| +|409|[Longest Palindrome](https://github.com/grandyang/leetcode/issues/409)|44.90%|Easy| +|408|[Valid Word Abbreviation](https://github.com/grandyang/leetcode/issues/408) $|26.20%|Easy| +|407|[Trapping Rain Water II](https://github.com/grandyang/leetcode/issues/407)|33.10%|Hard| +|406|[Queue Reconstruction by Height](https://github.com/grandyang/leetcode/issues/406)|54.10%|Medium| +|405|[Convert a Number to Hexadecimal](https://github.com/grandyang/leetcode/issues/405)|41.80%|Easy| +|404|[Sum of Left Leaves](https://github.com/grandyang/leetcode/issues/404)|46.20%|Easy| +|403|[Frog Jump](https://github.com/grandyang/leetcode/issues/403)|31.70%|Hard| +|402|[Remove K Digits](https://github.com/grandyang/leetcode/issues/402)|25.90%|Medium| +|401|[Binary Watch](https://github.com/grandyang/leetcode/issues/401)|43.00%|Easy| +|400|[Nth Digit](https://github.com/grandyang/leetcode/issues/400)|30.70%|Easy| +|399|[Evaluate Division](https://github.com/grandyang/leetcode/issues/399)|34.60%|Medium| +|398|[Random Pick Index](https://github.com/grandyang/leetcode/issues/398)|30.40%|Medium| +|397|[Integer Replacement](https://github.com/grandyang/leetcode/issues/397)|25.90%|Easy| +|396|[Rotate Function](https://github.com/grandyang/leetcode/issues/396)|28.40%|Easy| +|395|[Longest Substring with At Least K Repeating Characters](https://github.com/grandyang/leetcode/issues/395)|32.50%|Medium| +|394|[Decode String](https://github.com/grandyang/leetcode/issues/394)|38.60%|Medium| +|393|[UTF-8 Validation](https://github.com/grandyang/leetcode/issues/393)|33.00%|Medium| +|392|[Is Subsequence](https://github.com/grandyang/leetcode/issues/392)|44.10%|Medium| +|391|[Perfect Rectangle](https://github.com/grandyang/leetcode/issues/391)|13.30%|Hard| +|390|[Elimination Game](https://github.com/grandyang/leetcode/issues/390)|12.50%|Medium| +|389|[Find the Difference](https://github.com/grandyang/leetcode/issues/389)|49.90%|Easy| +|388|[Longest Absolute File Path](https://github.com/grandyang/leetcode/issues/388)|28.30%|Medium| +|387|[First Unique Character in a String](https://github.com/grandyang/leetcode/issues/387)|43.10%|Easy| +|386|[Lexicographical Numbers](https://github.com/grandyang/leetcode/issues/386)|31.00%|Medium| +|385|[Mini Parser](https://github.com/grandyang/leetcode/issues/385)|26.90%|Medium| +|384|[Shuffle an Array](https://github.com/grandyang/leetcode/issues/384)|45.50%|Medium| +|383|[Ransom Note](https://github.com/grandyang/leetcode/issues/383)|44.60%|Easy| +|382|[Linked List Random Node](https://github.com/grandyang/leetcode/issues/382)|48.60%|Medium| +|381|[Insert Delete GetRandom O(1) - Duplicates allowed](https://github.com/grandyang/leetcode/issues/381)|30.90%|Hard| +|380|[Insert Delete GetRandom O(1)](https://github.com/grandyang/leetcode/issues/380)|33.80%|Medium| +|379|[Design Phone Directory](https://github.com/grandyang/leetcode/issues/379) $|25.80%|Medium| +|378|[Kth Smallest Element in a Sorted Matrix](https://github.com/grandyang/leetcode/issues/378)|40.20%|Medium| +|377|[Combination Sum IV](https://github.com/grandyang/leetcode/issues/377)|37.50%|Medium| +|376|[Wiggle Subsequence](https://github.com/grandyang/leetcode/issues/376)|35.80%|Medium| +|375|[Guess Number Higher or Lower II](https://github.com/grandyang/leetcode/issues/375)|28.30%|Medium| +|374|[Guess Number Higher or Lower](https://github.com/grandyang/leetcode/issues/374)|31.70%|Easy| +|373|[Find K Pairs with Smallest Sums](https://github.com/grandyang/leetcode/issues/373)|25.50%|Medium| +|372|[Super Pow](https://github.com/grandyang/leetcode/issues/372)|30.10%|Medium| +|371|[Sum of Two Integers](https://github.com/grandyang/leetcode/issues/371)|54.00%|Easy| +|370|[Range Addition](https://github.com/grandyang/leetcode/issues/370) $|49.90%|Medium| +|369|[Plus One Linked List](https://github.com/grandyang/leetcode/issues/369) $|50.10%|Medium| +|368|[Largest Divisible Subset](https://github.com/grandyang/leetcode/issues/368)|32.00%|Medium| +|367|[Valid Perfect Square](https://github.com/grandyang/leetcode/issues/367)|36.60%|Medium| +|366|[Find Leaves of Binary Tree](https://github.com/grandyang/leetcode/issues/366) $|53.60%|Medium| +|365|[Water and Jug Problem](https://github.com/grandyang/leetcode/issues/365)|20.10%|Medium| +|364|[Nested List Weight Sum II](https://github.com/grandyang/leetcode/issues/364) $|47.20%|Medium| +|363|[Max Sum of Rectangle No Larger Than K](https://github.com/grandyang/leetcode/issues/363)|27.00%|Hard| +|362|[Design Hit Counter](https://github.com/grandyang/leetcode/issues/362) $|48.30%|Medium| +|361|[Bomb Enemy](https://github.com/grandyang/leetcode/issues/361) $|32.60%|Medium| +|360|[Sort Transformed Array](https://github.com/grandyang/leetcode/issues/360) $|40.80%|Medium| +|359|[Logger Rate Limiter](https://github.com/grandyang/leetcode/issues/359) $|56.00%|Easy| +|358|[Rearrange String k Distance Apart](https://github.com/grandyang/leetcode/issues/358) $|26.90%|Hard| +|357|[Count Numbers with Unique Digits](https://github.com/grandyang/leetcode/issues/357)|42.50%|Medium| +|356|[Line Reflection](https://github.com/grandyang/leetcode/issues/356) $|28.70%|Medium| +|355|[Design Twitter](https://github.com/grandyang/leetcode/issues/355)|22.20%|Medium| +|354|[Russian Doll Envelopes](https://github.com/grandyang/leetcode/issues/354)|27.10%|Hard| +|353|[Design Snake Game](https://github.com/grandyang/leetcode/issues/353) $|19.80%|Medium| +|352|[Data Stream as Disjoint Intervals](https://github.com/grandyang/leetcode/issues/352)|34.40%|Hard| +|351|[Android Unlock Patterns](https://github.com/grandyang/leetcode/issues/351) $|32.00%|Medium| +|350|[Intersection of Two Arrays II](https://github.com/grandyang/leetcode/issues/350)|41.50%|Easy| +|349|[Intersection of Two Arrays](https://github.com/grandyang/leetcode/issues/349)|47.80%|Easy| +|348|[Design Tic-Tac-Toe ](https://github.com/grandyang/leetcode/issues/348) $|45.60%|Medium| +|347|[Top K Frequent Elements](https://github.com/grandyang/leetcode/issues/347)|44.50%|Medium| +|346|[Moving Average from Data Stream ](https://github.com/grandyang/leetcode/issues/346) $|69.20%|Easy| +|345|[Reverse Vowels of a String](https://github.com/grandyang/leetcode/issues/345)|35.30%|Easy| +|344|[Reverse String](https://github.com/grandyang/leetcode/issues/344)|58.90%|Easy| +|343|[Integer Break](https://github.com/grandyang/leetcode/issues/343)|43.60%|Medium| +|342|[Power of Four](https://github.com/grandyang/leetcode/issues/342)|34.10%|Easy| +|341|[Flatten Nested List Iterator](https://github.com/grandyang/leetcode/issues/341) $|18.70%|Medium| +|340|[Longest Substring with At Most K Distinct Characters](https://github.com/grandyang/leetcode/issues/340) $|36.30%|Hard| +|339|[Nested List Weight Sum](https://github.com/grandyang/leetcode/issues/339) $|54.60%|Easy| +|338|[Counting Bits](https://github.com/grandyang/leetcode/issues/338)|55.40%|Medium| +|337|[House Robber III](https://github.com/grandyang/leetcode/issues/337)|37.00%|Medium| +|336|[Palindrome Pairs](https://github.com/grandyang/leetcode/issues/336)|18.70%|Hard| +|335|[Self Crossing](https://github.com/grandyang/leetcode/issues/335)|18.00%|Medium| +|334|[Increasing Triplet Subsequence](https://github.com/grandyang/leetcode/issues/334)|33.20%|Medium| +|333|[Largest BST Subtree](https://github.com/grandyang/leetcode/issues/333) $|26.50%|Medium| +|332|[Reconstruct Itinerary](https://github.com/grandyang/leetcode/issues/332)|23.40%|Medium| +|331|[Verify Preorder Serialization of a Binary Tree](https://github.com/grandyang/leetcode/issues/331)|31.50%|Medium| +|330|[Patching Array](https://github.com/grandyang/leetcode/issues/330)|28.80%|Medium| +|329|[Longest Increasing Path in a Matrix](https://github.com/grandyang/leetcode/issues/329)|29.50%|Medium| +|328|[Odd Even Linked List](https://github.com/grandyang/leetcode/issues/328)|37.80%|Easy| +|327|[Count of Range Sum](https://github.com/grandyang/leetcode/issues/327)|24.30%|Hard| +|326|[Power of Three](https://github.com/grandyang/leetcode/issues/326)|35.30%|Easy| +|325|[Maximum Size Subarray Sum Equals k](https://github.com/grandyang/leetcode/issues/325) $|39.60%|Easy| +|324|[Wiggle Sort II](https://github.com/grandyang/leetcode/issues/324)|20.10%|Medium| +|323|[Number of Connected Components in an Undirected Graph](https://github.com/grandyang/leetcode/issues/323) $|43.30%|Medium| +|322|[Coin Change](https://github.com/grandyang/leetcode/issues/322)|24.90%|Medium| +|321|[Create Maximum Number](https://github.com/grandyang/leetcode/issues/321)|19.10%|Hard| +|320|[Generalized Abbreviation](https://github.com/grandyang/leetcode/issues/320) $|40.40%|Medium| +|319|[Bulb Switcher](https://github.com/grandyang/leetcode/issues/319)|39.20%|Medium| +|318|[Maximum Product of Word Lengths](https://github.com/grandyang/leetcode/issues/318)|38.70%|Medium| +|317|[Shortest Distance from All Buildings](https://github.com/grandyang/leetcode/issues/317) $|29.10%|Hard| +|316|[Remove Duplicate Letters](https://github.com/grandyang/leetcode/issues/316)|23.00%|Medium| +|315|[Count of Smaller Numbers After Self](https://github.com/grandyang/leetcode/issues/315)|28.20%|Hard| +|314|[Binary Tree Vertical Order Traversal](https://github.com/grandyang/leetcode/issues/314) $|30.10%|Medium| +|313|[Super Ugly Number](https://github.com/grandyang/leetcode/issues/313)|31.20%|Medium| +|312|[Burst Balloons](https://github.com/grandyang/leetcode/issues/312)|24.50%|Medium| +|311|[Sparse Matrix Multiplication](https://github.com/grandyang/leetcode/issues/311) $|40.00%|Medium| +|310|[Minimum Height Trees](https://github.com/grandyang/leetcode/issues/310)|20.20%|Medium| +|309|[Best Time to Buy and Sell Stock with Cooldown](https://github.com/grandyang/leetcode/issues/309)|32.60%|Medium| +|308|[Range Sum Query 2D - Mutable](https://github.com/grandyang/leetcode/issues/308) $|20.30%|Hard| +|307|[Range Sum Query - Mutable](https://github.com/grandyang/leetcode/issues/307)|14.50%|Medium| +|306|[Additive Number](https://github.com/grandyang/leetcode/issues/306)|23.30%|Medium| +|305|[Number of Islands II](https://github.com/grandyang/leetcode/issues/305) $|26.70%|Hard| +|304|[Range Sum Query 2D - Immutable](https://github.com/grandyang/leetcode/issues/304)|21.50%|Medium| +|303|[Range Sum Query - Immutable](https://github.com/grandyang/leetcode/issues/303)|25.70%|Easy| +|302|[Smallest Rectangle Enclosing Black Pixels](https://github.com/grandyang/leetcode/issues/302) $|36.70%|Hard| +|301|[Remove Invalid Parentheses](https://github.com/grandyang/leetcode/issues/301)|27.00%|Hard| +|300|[Longest Increasing Subsequence](https://github.com/grandyang/leetcode/issues/300)|31.50%|Medium| +|299|[Bulls and Cows](https://github.com/grandyang/leetcode/issues/299)|23.80%|Easy| +|298|[Binary Tree Longest Consecutive Sequence](https://github.com/grandyang/leetcode/issues/298) $|32.20%|Medium| +|297|[Serialize and Deserialize Binary Tree](https://github.com/grandyang/leetcode/issues/297)|23.80%|Medium| +|296|[Best Meeting Point](https://github.com/grandyang/leetcode/issues/296) $|41.40%|Hard| +|295|[Find Median from Data Stream](https://github.com/grandyang/leetcode/issues/295)|18.60%|Hard| +|294|[Flip Game II](https://github.com/grandyang/leetcode/issues/294) $|38.10%|Medium| +|293|[Flip Game](https://github.com/grandyang/leetcode/issues/293) $|47.60%|Easy| +|292|[Nim Game](https://github.com/grandyang/leetcode/issues/292)|49.50%|Easy| +|291|[Word Pattern II](https://github.com/grandyang/leetcode/issues/291) $|31.50%|Hard| +|290|[Word Pattern](https://github.com/grandyang/leetcode/issues/290)|26.50%|Easy| +|289|[Game of Life](https://github.com/grandyang/leetcode/issues/289)|32.60%|Medium| +|288|[Unique Word Abbreviation](https://github.com/grandyang/leetcode/issues/288) $|16.80%|Easy| +|287|[Find the Duplicate Number](https://github.com/grandyang/leetcode/issues/287)|32.80%|Hard| +|286|[Walls and Gates](https://github.com/grandyang/leetcode/issues/286) $|29.90%|Medium| +|285|[Inorder Successor in BST](https://github.com/grandyang/leetcode/issues/285) $|32.50%|Medium| +|284|[Peeking Iterator](https://github.com/grandyang/leetcode/issues/284)|31.00%|Medium| +|283|[Move Zeroes](https://github.com/grandyang/leetcode/issues/283)|41.40%|Easy| +|282|[Expression Add Operators](https://github.com/grandyang/leetcode/issues/282)|18.90%|Hard| +|281|[Zigzag Iterator](https://github.com/grandyang/leetcode/issues/281) $|37.20%|Medium| +|280|[Wiggle Sort](https://github.com/grandyang/leetcode/issues/280) $|43.30%|Medium| +|279|[Perfect Squares](https://github.com/grandyang/leetcode/issues/279)|28.80%|Medium| +|278|[First Bad Version](https://github.com/grandyang/leetcode/issues/278)|19.80%|Easy| +|277|[Find the Celebrity](https://github.com/grandyang/leetcode/issues/277) $|31.70%|Medium| +|276|[Paint Fence](https://github.com/grandyang/leetcode/issues/276) $|25.00%|Easy| +|275|[H-Index II](https://github.com/grandyang/leetcode/issues/275)|31.40%|Medium| +|274|[H-Index](https://github.com/grandyang/leetcode/issues/274)|25.30%|Medium| +|273|[Integer to English Words](https://github.com/grandyang/leetcode/issues/273)|15.50%|Medium| +|272|[Closest Binary Search Tree Value II](https://github.com/grandyang/leetcode/issues/272) $|26.90%|Hard| +|271|[Encode and Decode Strings](https://github.com/grandyang/leetcode/issues/271) $|25.40%|Medium| +|270|[Closest Binary Search Tree Value](https://github.com/grandyang/leetcode/issues/270) $|29.40%|Easy| +|269|[Alien Dictionary](https://github.com/grandyang/leetcode/issues/269) $|16.50%|Hard| +|268|[Missing Number](https://github.com/grandyang/leetcode/issues/268)|34.70%|Medium| +|267|[Palindrome Permutation II](https://github.com/grandyang/leetcode/issues/267) $|22.50%|Medium| +|266|[Palindrome Permutation](https://github.com/grandyang/leetcode/issues/266) $|45.80%|Easy| +|265|[Paint House II](https://github.com/grandyang/leetcode/issues/265) $|30.00%|Hard| +|264|[Ugly Number II](https://github.com/grandyang/leetcode/issues/264)|21.60%|Medium| +|263|[Ugly Number](https://github.com/grandyang/leetcode/issues/263)|32.60%|Easy| +|262|[Trips and Users](https://github.com/grandyang/leetcode/issues/262) *|16.10%|Hard| +|261|[Graph Valid Tree](https://github.com/grandyang/leetcode/issues/261) $|25.40%|Medium| +|260|[Single Number III](https://github.com/grandyang/leetcode/issues/260)|37.60%|Medium| +|259|[3Sum Smaller](https://github.com/grandyang/leetcode/issues/259) $|34.20%|Medium| +|258|[Add Digits](https://github.com/grandyang/leetcode/issues/258)|46.50%|Easy| +|257|[Binary Tree Paths](https://github.com/grandyang/leetcode/issues/257)|21.90%|Easy| +|256|[Paint House](https://github.com/grandyang/leetcode/issues/256) $|38.40%|Medium| +|255|[Verify Preorder Sequence in Binary Search Tree](https://github.com/grandyang/leetcode/issues/255) $|32.30%|Medium| +|254|[Factor Combinations](https://github.com/grandyang/leetcode/issues/254) $|29.00%|Medium| +|253|[Meeting Rooms II](https://github.com/grandyang/leetcode/issues/253) $|28.80%|Medium| +|252|[Meeting Rooms](https://github.com/grandyang/leetcode/issues/252) $|35.40%|Easy| +|251|[Flatten 2D Vector](https://github.com/grandyang/leetcode/issues/251) $|28.30%|Medium| +|250|[Count Univalue Subtrees](https://github.com/grandyang/leetcode/issues/250) $|32.70%|Medium| +|249|[Group Shifted Strings](https://github.com/grandyang/leetcode/issues/249) $|25.20%|Easy| +|248|[Strobogrammatic Number III](https://github.com/grandyang/leetcode/issues/248) $|21.80%|Hard| +|247|[Strobogrammatic Number II](https://github.com/grandyang/leetcode/issues/247) $|26.70%|Medium| +|246|[Strobogrammatic Number](https://github.com/grandyang/leetcode/issues/246) $|31.60%|Easy| +|245|[Shortest Word Distance III](https://github.com/grandyang/leetcode/issues/245) $|43.20%|Medium| +|244|[Shortest Word Distance II](https://github.com/grandyang/leetcode/issues/244) $|33.70%|Medium| +|243|[Shortest Word Distance](https://github.com/grandyang/leetcode/issues/243) $|41.80%|Easy| +|242|[Valid Anagram](https://github.com/grandyang/leetcode/issues/242)|39.30%|Easy| +|241|[Different Ways to Add Parentheses](https://github.com/grandyang/leetcode/issues/241)|27.10%|Medium| +|240|[Search a 2D Matrix II](https://github.com/grandyang/leetcode/issues/240)|31.40%|Medium| +|239|[Sliding Window Maximum](https://github.com/grandyang/leetcode/issues/239)|24.30%|Hard| +|238|[Product of Array Except Self](https://github.com/grandyang/leetcode/issues/238)|42.40%|Medium| +|237|[Delete Node in a Linked List](https://github.com/grandyang/leetcode/issues/237)|50.90%|Easy| +|236|[Lowest Common Ancestor of a Binary Tree](https://github.com/grandyang/leetcode/issues/236)|28.30%|Medium| +|235|[Lowest Common Ancestor of a Binary Search Tree](https://github.com/grandyang/leetcode/issues/235)|38.90%|Medium| +|234|[Palindrome Linked List](https://github.com/grandyang/leetcode/issues/234)|23.80%|Easy| +|233|[Number of Digit One](https://github.com/grandyang/leetcode/issues/233)|16.10%|Medium| +|232|[Implement Queue using Stacks](https://github.com/grandyang/leetcode/issues/232)|37.40%|Easy| +|231|[Power of Two](https://github.com/grandyang/leetcode/issues/231)|31.30%|Easy| +|230|[Kth Smallest Element in a BST](https://github.com/grandyang/leetcode/issues/230)|30.50%|Medium| +|229|[Majority Element II](https://github.com/grandyang/leetcode/issues/229)|30.50%|Medium| +|228|[Summary Ranges](https://github.com/grandyang/leetcode/issues/228)|21.10%|Easy| +|227|[Basic Calculator II](https://github.com/grandyang/leetcode/issues/227)|18.00%|Medium| +|226|[Invert Binary Tree](https://github.com/grandyang/leetcode/issues/226)|35.40%|Easy| +|225|[Implement Stack using Queues](https://github.com/grandyang/leetcode/issues/225)|29.60%|Medium| +|224|[Basic Calculator](https://github.com/grandyang/leetcode/issues/224)|15.80%|Medium| +|223|[Rectangle Area](https://github.com/grandyang/leetcode/issues/223)|25.60%|Easy| +|222|[Count Complete Tree Nodes](https://github.com/grandyang/leetcode/issues/222)|19.40%|Medium| +|221|[Maximal Square](https://github.com/grandyang/leetcode/issues/221)|20.30%|Medium| +|220|[Contains Duplicate III](https://github.com/grandyang/leetcode/issues/220)|15.30%|Medium| +|219|[Contains Duplicate II](https://github.com/grandyang/leetcode/issues/219)|25.60%|Easy| +|218|[The Skyline Problem](https://github.com/grandyang/leetcode/issues/218)|16.20%|Hard| +|217|[Contains Duplicate](https://github.com/grandyang/leetcode/issues/217)|35.90%|Easy| +|216|[Combination Sum III](https://github.com/grandyang/leetcode/issues/216)|27.70%|Medium| +|215|[Kth Largest Element in an Array](https://github.com/grandyang/leetcode/issues/215)|27.30%|Medium| +|214|[Shortest Palindrome](https://github.com/grandyang/leetcode/issues/214)|16.80%|Hard| +|213|[House Robber II](https://github.com/grandyang/leetcode/issues/213)|26.30%|Medium| +|212|[Word Search II](https://github.com/grandyang/leetcode/issues/212)|15.00%|Hard| +|211|[Add and Search Word - Data structure design](https://github.com/grandyang/leetcode/issues/211)|20.70%|Medium| +|210|[Course Schedule II](https://github.com/grandyang/leetcode/issues/210)|19.30%|Medium| +|209|[Minimum Size Subarray Sum](https://github.com/grandyang/leetcode/issues/209)|22.90%|Medium| +|208|[Implement Trie (Prefix Tree)](https://github.com/grandyang/leetcode/issues/208)|24.80%|Medium| +|207|[Course Schedule](https://github.com/grandyang/leetcode/issues/207)|21.70%|Medium| +|206|[Reverse Linked List](https://github.com/grandyang/leetcode/issues/206)|31.50%|Easy| +|205|[Isomorphic Strings](https://github.com/grandyang/leetcode/issues/205)|24.20%|Easy| +|204|[Count Primes](https://github.com/grandyang/leetcode/issues/204)|19.00%|Easy| +|203|[Remove Linked List Elements](https://github.com/grandyang/leetcode/issues/203)|25.80%|Easy| +|202|[Happy Number](https://github.com/grandyang/leetcode/issues/202)|31.40%|Easy| +|201|[Bitwise AND of Numbers Range](https://github.com/grandyang/leetcode/issues/201)|23.30%|Medium| +|200|[Number of Islands](https://github.com/grandyang/leetcode/issues/200)|21.90%|Medium| +|199|[Binary Tree Right Side View](https://github.com/grandyang/leetcode/issues/199)|27.10%|Medium| +|198|[House Robber](https://github.com/grandyang/leetcode/issues/198)|28.80%|Easy| +|197|[Rising Temperature](https://github.com/grandyang/leetcode/issues/197) *|25.90%|Easy| +|196|[Delete Duplicate Emails](https://github.com/grandyang/leetcode/issues/196) *|19.00%|Easy| +|195|[Tenth Line](https://github.com/grandyang/leetcode/issues/195) #|32.20%|Easy| +|194|[Transpose File](https://github.com/grandyang/leetcode/issues/194) #|21.40%|Medium| +|193|[Valid Phone Numbers](https://github.com/grandyang/leetcode/issues/193) #|24.40%|Easy| +|192|[Word Frequency](https://github.com/grandyang/leetcode/issues/192) #|26.10%|Medium| +|191|[Number of 1 Bits](https://github.com/grandyang/leetcode/issues/191)|37.30%|Easy| +|190|[Reverse Bits](https://github.com/grandyang/leetcode/issues/190)|28.40%|Easy| +|189|[Rotate Array](https://github.com/grandyang/leetcode/issues/189)|17.80%|Easy| +|188|[Best Time to Buy and Sell Stock IV](https://github.com/grandyang/leetcode/issues/188)|17.30%|Hard| +|187|[Repeated DNA Sequences](https://github.com/grandyang/leetcode/issues/187)|19.50%|Medium| +|186|[Reverse Words in a String II](https://github.com/grandyang/leetcode/issues/186) $|31.10%|Medium| +|185|[Department Top Three Salaries](https://github.com/grandyang/leetcode/issues/185) *|15.20%|Hard| +|184|[Department Highest Salary](https://github.com/grandyang/leetcode/issues/184) *|19.00%|Medium| +|183|[Customers Who Never Order](https://github.com/grandyang/leetcode/issues/183) *|33.70%|Easy| +|182|[Duplicate Emails](https://github.com/grandyang/leetcode/issues/182) *|38.10%|Easy| +|181|[Employees Earning More Than Their Managers](https://github.com/grandyang/leetcode/issues/181) *|41.00%|Easy| +|180|[Consecutive Numbers](https://github.com/grandyang/leetcode/issues/180) *|26.60%|Medium| +|179|[Largest Number](https://github.com/grandyang/leetcode/issues/179)|15.70%|Medium| +|178|[Rank Scores](https://github.com/grandyang/leetcode/issues/178) *|24.60%|Medium| +|177|[Nth Highest Salary](https://github.com/grandyang/leetcode/issues/177) *|16.30%|Medium| +|176|[Second Highest Salary](https://github.com/grandyang/leetcode/issues/176) *|25.00%|Easy| +|175|[Combine Two Tables](https://github.com/grandyang/leetcode/issues/175) *|34.40%|Easy| +|174|[Dungeon Game](https://github.com/grandyang/leetcode/issues/174)|17.70%|Hard| +|173|[Binary Search Tree Iterator](https://github.com/grandyang/leetcode/issues/173)|29.30%|Medium| +|172|[Factorial Trailing Zeroes](https://github.com/grandyang/leetcode/issues/172)|28.40%|Easy| +|171|[Excel Sheet Column Number](https://github.com/grandyang/leetcode/issues/171)|36.50%|Easy| +|170|[Two Sum III - Data structure design](https://github.com/grandyang/leetcode/issues/170) $|24.70%|Easy| +|169|[Majority Element](https://github.com/grandyang/leetcode/issues/169)|35.00%|Easy| +|168|[Excel Sheet Column Title](https://github.com/grandyang/leetcode/issues/168)|18.10%|Easy| +|167|[Two Sum II - Input array is sorted](https://github.com/grandyang/leetcode/issues/167) $|43.30%|Medium| +|166|[Fraction to Recurring Decimal](https://github.com/grandyang/leetcode/issues/166)|12.70%|Medium| +|165|[Compare Version Numbers](https://github.com/grandyang/leetcode/issues/165)|15.20%|Easy| +|164|[Maximum Gap](https://github.com/grandyang/leetcode/issues/164)|24.40%|Hard| +|163|[Missing Ranges](https://github.com/grandyang/leetcode/issues/163) $|24.10%|Medium| +|162|[Find Peak Element](https://github.com/grandyang/leetcode/issues/162)|31.50%|Medium| +|161|[One Edit Distance](https://github.com/grandyang/leetcode/issues/161) $|24.00%|Medium| +|160|[Intersection of Two Linked Lists](https://github.com/grandyang/leetcode/issues/160)|28.70%|Easy| +|159|[Longest Substring with At Most Two Distinct Characters](https://github.com/grandyang/leetcode/issues/159) $|30.20%|Hard| +|158|[Read N Characters Given Read4 II - Call multiple times](https://github.com/grandyang/leetcode/issues/158) $|22.30%|Hard| +|157|[Read N Characters Given Read4](https://github.com/grandyang/leetcode/issues/157) $|29.80%|Easy| +|156|[Binary Tree Upside Down](https://github.com/grandyang/leetcode/issues/156) $|34.30%|Medium| +|155|[Min Stack](https://github.com/grandyang/leetcode/issues/155)|18.50%|Easy| +|154|[Find Minimum in Rotated Sorted Array II](https://github.com/grandyang/leetcode/issues/154)|31.90%|Hard| +|153|[Find Minimum in Rotated Sorted Array](https://github.com/grandyang/leetcode/issues/153)|33.30%|Medium| +|152|[Maximum Product Subarray](https://github.com/grandyang/leetcode/issues/152)|19.40%|Medium| +|151|[Reverse Words in a String](https://github.com/grandyang/leetcode/issues/151)|15.10%|Medium| +|150|[Evaluate Reverse Polish Notation](https://github.com/grandyang/leetcode/issues/150)|21.10%|Medium| +|149|[Max Points on a Line](https://github.com/grandyang/leetcode/issues/149)|12.60%|Hard| +|148|[Sort List](https://github.com/grandyang/leetcode/issues/148)|22.00%|Medium| +|147|[Insertion Sort List](https://github.com/grandyang/leetcode/issues/147)|26.40%|Medium| +|146|[LRU Cache](https://github.com/grandyang/leetcode/issues/146)|15.00%|Hard| +|145|[Binary Tree Postorder Traversal](https://github.com/grandyang/leetcode/issues/145)|32.40%|Hard| +|144|[Binary Tree Preorder Traversal](https://github.com/grandyang/leetcode/issues/144)|36.30%|Medium| +|143|[Reorder List](https://github.com/grandyang/leetcode/issues/143)|21.00%|Medium| +|142|[Linked List Cycle II](https://github.com/grandyang/leetcode/issues/142)|31.40%|Medium| +|141|[Linked List Cycle](https://github.com/grandyang/leetcode/issues/141)|36.30%|Medium| +|140|[Word Break II](https://github.com/grandyang/leetcode/issues/140)|17.70%|Hard| +|139|[Word Break](https://github.com/grandyang/leetcode/issues/139)|23.00%|Medium| +|138|[Copy List with Random Pointer](https://github.com/grandyang/leetcode/issues/138)|25.10%|Hard| +|137|[Single Number II](https://github.com/grandyang/leetcode/issues/137)|35.00%|Medium| +|136|[Single Number](https://github.com/grandyang/leetcode/issues/136)|45.10%|Medium| +|135|[Candy](https://github.com/grandyang/leetcode/issues/135)|20.50%|Hard| +|134|[Gas Station](https://github.com/grandyang/leetcode/issues/134)|25.70%|Medium| +|133|[Clone Graph](https://github.com/grandyang/leetcode/issues/133)|24.00%|Medium| +|132|[Palindrome Partitioning II](https://github.com/grandyang/leetcode/issues/132)|19.70%|Hard| +|131|[Palindrome Partitioning](https://github.com/grandyang/leetcode/issues/131)|26.70%|Medium| +|130|[Surrounded Regions](https://github.com/grandyang/leetcode/issues/130)|14.60%|Medium| +|129|[Sum Root to Leaf Numbers](https://github.com/grandyang/leetcode/issues/129)|30.30%|Medium| +|128|[Longest Consecutive Sequence](https://github.com/grandyang/leetcode/issues/128)|29.40%|Hard| +|127|[Word Ladder](https://github.com/grandyang/leetcode/issues/127)|19.30%|Medium| +|126|[Word Ladder II](https://github.com/grandyang/leetcode/issues/126)|12.90%|Hard| +|125|[Valid Palindrome](https://github.com/grandyang/leetcode/issues/125)|22.00%|Easy| +|124|[Binary Tree Maximum Path Sum](https://github.com/grandyang/leetcode/issues/124)|21.50%|Hard| +|123|[Best Time to Buy and Sell Stock III](https://github.com/grandyang/leetcode/issues/123)|23.90%|Hard| +|122|[Best Time to Buy and Sell Stock II](https://github.com/grandyang/leetcode/issues/122)|38.30%|Medium| +|121|[Best Time to Buy and Sell Stock](https://github.com/grandyang/leetcode/issues/121)|32.60%|Medium| +|120|[Triangle](https://github.com/grandyang/leetcode/issues/120)|27.40%|Medium| +|119|[Pascal's Triangle II](https://github.com/grandyang/leetcode/issues/119)|29.40%|Easy| +|118|[Pascal's Triangle](https://github.com/grandyang/leetcode/issues/118)|30.10%|Easy| +|117|[Populating Next Right Pointers in Each Node II](https://github.com/grandyang/leetcode/issues/117)|32.00%|Hard| +|116|[Populating Next Right Pointers in Each Node](https://github.com/grandyang/leetcode/issues/116)|36.20%|Medium| +|115|[Distinct Subsequences](https://github.com/grandyang/leetcode/issues/115)|26.30%|Hard| +|114|[Flatten Binary Tree to Linked List](https://github.com/grandyang/leetcode/issues/114)|28.80%|Medium| +|113|[Path Sum II](https://github.com/grandyang/leetcode/issues/113)|26.60%|Medium| +|112|[Path Sum](https://github.com/grandyang/leetcode/issues/112)|29.80%|Easy| +|111|[Minimum Depth of Binary Tree](https://github.com/grandyang/leetcode/issues/111)|29.10%|Easy| +|110|[Balanced Binary Tree](https://github.com/grandyang/leetcode/issues/110)|32.00%|Easy| +|109|[Convert Sorted List to Binary Search Tree](https://github.com/grandyang/leetcode/issues/109)|27.90%|Medium| +|108|[Convert Sorted Array to Binary Search Tree](https://github.com/grandyang/leetcode/issues/108)|34.00%|Medium| +|107|[Binary Tree Level Order Traversal II](https://github.com/grandyang/leetcode/issues/107)|31.10%|Easy| +|106|[Construct Binary Tree from Inorder and Postorder Traversal](https://github.com/grandyang/leetcode/issues/106)|26.80%|Medium| +|105|[Construct Binary Tree from Preorder and Inorder Traversal](https://github.com/grandyang/leetcode/issues/105)|26.40%|Medium| +|104|[Maximum Depth of Binary Tree](https://github.com/grandyang/leetcode/issues/104)|45.10%|Easy| +|103|[Binary Tree Zigzag Level Order Traversal](https://github.com/grandyang/leetcode/issues/103)|26.40%|Medium| +|102|[Binary Tree Level Order Traversal](https://github.com/grandyang/leetcode/issues/102)|29.30%|Easy| +|101|[Symmetric Tree](https://github.com/grandyang/leetcode/issues/101)|31.60%|Easy| +|100|[Same Tree](https://github.com/grandyang/leetcode/issues/100)|41.80%|Easy| +|99|[Recover Binary Search Tree](https://github.com/grandyang/leetcode/issues/99)|24.30%|Hard| +|98|[Validate Binary Search Tree](https://github.com/grandyang/leetcode/issues/98)|20.60%|Medium| +|97|[Interleaving String](https://github.com/grandyang/leetcode/issues/97)|20.80%|Hard| +|96|[Unique Binary Search Trees](https://github.com/grandyang/leetcode/issues/96)|36.00%|Medium| +|95|[Unique Binary Search Trees II](https://github.com/grandyang/leetcode/issues/95)|28.00%|Medium| +|94|[Binary Tree Inorder Traversal](https://github.com/grandyang/leetcode/issues/94)|36.20%|Medium| +|93|[Restore IP Addresses](https://github.com/grandyang/leetcode/issues/93)|21.00%|Medium| +|92|[Reverse Linked List II](https://github.com/grandyang/leetcode/issues/92)|26.10%|Medium| +|91|[Decode Ways](https://github.com/grandyang/leetcode/issues/91)|16.40%|Medium| +|90|[Subsets II](https://github.com/grandyang/leetcode/issues/90)|27.70%|Medium| +|89|[Gray Code](https://github.com/grandyang/leetcode/issues/89)|32.80%|Medium| +|88|[Merge Sorted Array](https://github.com/grandyang/leetcode/issues/88)|29.70%|Easy| +|87|[Scramble String](https://github.com/grandyang/leetcode/issues/87)|24.20%|Hard| +|86|[Partition List](https://github.com/grandyang/leetcode/issues/86)|27.50%|Medium| +|85|[Maximal Rectangle](https://github.com/grandyang/leetcode/issues/85)|22.00%|Hard| +|84|[Largest Rectangle in Histogram](https://github.com/grandyang/leetcode/issues/84)|22.60%|Hard| +|83|[Remove Duplicates from Sorted List](https://github.com/grandyang/leetcode/issues/83)|34.50%|Easy| +|82|[Remove Duplicates from Sorted List II](https://github.com/grandyang/leetcode/issues/82)|25.00%|Medium| +|81|[Search in Rotated Sorted Array II](https://github.com/grandyang/leetcode/issues/81)|31.40%|Medium| +|80|[Remove Duplicates from Sorted Array II](https://github.com/grandyang/leetcode/issues/80)|30.50%|Medium| +|79|[Word Search](https://github.com/grandyang/leetcode/issues/79)|20.30%|Medium| +|78|[Subsets](https://github.com/grandyang/leetcode/issues/78)|28.20%|Medium| +|77|[Combinations](https://github.com/grandyang/leetcode/issues/77)|30.90%|Medium| +|76|[Minimum Window Substring](https://github.com/grandyang/leetcode/issues/76)|18.90%|Hard| +|75|[Sort Colors](https://github.com/grandyang/leetcode/issues/75)|32.60%|Medium| +|74|[Search a 2D Matrix](https://github.com/grandyang/leetcode/issues/74)|31.60%|Medium| +|73|[Set Matrix Zeroes](https://github.com/grandyang/leetcode/issues/73)|31.40%|Medium| +|72|[Edit Distance](https://github.com/grandyang/leetcode/issues/72)|26.20%|Hard| +|71|[Simplify Path](https://github.com/grandyang/leetcode/issues/71)|20.00%|Medium| +|70|[Climbing Stairs](https://github.com/grandyang/leetcode/issues/70)|34.40%|Easy| +|69|[Sqrt(x)](https://github.com/grandyang/leetcode/issues/69)|23.10%|Medium| +|68|[Text Justification](https://github.com/grandyang/leetcode/issues/68)|14.60%|Hard| +|67|[Add Binary](https://github.com/grandyang/leetcode/issues/67)|24.70%|Easy| +|66|[Plus One](https://github.com/grandyang/leetcode/issues/66)|30.40%|Easy| +|65|[Valid Number](https://github.com/grandyang/leetcode/issues/65)|11.40%|Hard| +|64|[Minimum Path Sum](https://github.com/grandyang/leetcode/issues/64)|32.20%|Medium| +|63|[Unique Paths II](https://github.com/grandyang/leetcode/issues/63)|28.00%|Medium| +|62|[Unique Paths](https://github.com/grandyang/leetcode/issues/62)|32.80%|Medium| +|61|[Rotate List](https://github.com/grandyang/leetcode/issues/61)|21.70%|Medium| +|60|[Permutation Sequence](https://github.com/grandyang/leetcode/issues/60)|22.80%|Medium| +|59|[Spiral Matrix II](https://github.com/grandyang/leetcode/issues/59)|31.80%|Medium| +|58|[Length of Last Word](https://github.com/grandyang/leetcode/issues/58)|28.00%|Easy| +|57|[Insert Interval](https://github.com/grandyang/leetcode/issues/57)|21.40%|Hard| +|56|[Merge Intervals](https://github.com/grandyang/leetcode/issues/56)|22.40%|Hard| +|55|[Jump Game](https://github.com/grandyang/leetcode/issues/55)|27.00%|Medium| +|54|[Spiral Matrix](https://github.com/grandyang/leetcode/issues/54)|20.80%|Medium| +|53|[Maximum Subarray](https://github.com/grandyang/leetcode/issues/53)|34.50%|Medium| +|52|[N-Queens II](https://github.com/grandyang/leetcode/issues/52)|35.80%|Hard| +|51|[N-Queens](https://github.com/grandyang/leetcode/issues/51)|26.50%|Hard| +|50|[Pow(x, n)](https://github.com/grandyang/leetcode/issues/50)|26.70%| +|49|[Anagrams](https://github.com/grandyang/leetcode/issues/49)|24.30%|Medium| +|48|[Rotate Image](https://github.com/grandyang/leetcode/issues/48)|31.90%|Medium| +|47|[Permutations II](https://github.com/grandyang/leetcode/issues/47)|25.80%|Hard| +|46|[Permutations](https://github.com/grandyang/leetcode/issues/46)|31.90%|Medium| +|45|[Jump Game II](https://github.com/grandyang/leetcode/issues/45)|24.20%|Hard| +|44|[Wildcard Matching](https://github.com/grandyang/leetcode/issues/44)|15.00%|Hard| +|43|[Multiply Strings](https://github.com/grandyang/leetcode/issues/43)|21.00%|Medium| +|42|[Trapping Rain Water](https://github.com/grandyang/leetcode/issues/42)|30.00%|Hard| +|41|[First Missing Positive](https://github.com/grandyang/leetcode/issues/41)|22.90%|Hard| +|40|[Combination Sum II](https://github.com/grandyang/leetcode/issues/40)|25.20%|Medium| +|39|[Combination Sum](https://github.com/grandyang/leetcode/issues/39)|27.90%|Medium| +|38|[Count and Say](https://github.com/grandyang/leetcode/issues/38)|25.20%|Easy| +|37|[Sudoku Solver](https://github.com/grandyang/leetcode/issues/37)|21.80%|Hard| +|36|[Valid Sudoku](https://github.com/grandyang/leetcode/issues/36)|27.20%|Easy| +|35|[Search Insert Position](https://github.com/grandyang/leetcode/issues/35)|35.40%|Medium| +|34|[Search for a Range](https://github.com/grandyang/leetcode/issues/34)|27.50%|Medium| +|33|[Search in Rotated Sorted Array](https://github.com/grandyang/leetcode/issues/33)|28.80%|Hard| +|32|[Longest Valid Parentheses](https://github.com/grandyang/leetcode/issues/32)|20.90%|Hard| +|31|[Next Permutation](https://github.com/grandyang/leetcode/issues/31)|25.00%|Medium| +|30|[Substring with Concatenation of All Words](https://github.com/grandyang/leetcode/issues/30)|19.40%|Hard| +|29|[Divide Two Integers](https://github.com/grandyang/leetcode/issues/29)|15.00%|Medium| +|28|[Implement strStr()](https://github.com/grandyang/leetcode/issues/28)|22.20%|Easy| +|27|[Remove Element](https://github.com/grandyang/leetcode/issues/27)|32.10%|Easy| +|26|[Remove Duplicates from Sorted Array](https://github.com/grandyang/leetcode/issues/26)|31.30%|Easy| +|25|[Reverse Nodes in k-Group](https://github.com/grandyang/leetcode/issues/25)|25.50%|Hard| +|24|[Swap Nodes in Pairs](https://github.com/grandyang/leetcode/issues/24)|32.50%|Medium| +|23|[Merge k Sorted Lists](https://github.com/grandyang/leetcode/issues/23)|21.10%|Hard| +|22|[Generate Parentheses](https://github.com/grandyang/leetcode/issues/22)|32.60%|Medium| +|21|[Merge Two Sorted Lists](https://github.com/grandyang/leetcode/issues/21)|32.70%|Easy| +|20|[Valid Parentheses](https://github.com/grandyang/leetcode/issues/20)|26.50%|Easy| +|19|[Remove Nth Node From End of List](https://github.com/grandyang/leetcode/issues/19)|27.10%|Easy| +|18|[4Sum](https://github.com/grandyang/leetcode/issues/18)|21.70%|Medium| +|17|[Letter Combinations of a Phone Number](https://github.com/grandyang/leetcode/issues/17)|25.80%|Medium| +|16|[3Sum Closest](https://github.com/grandyang/leetcode/issues/16)|26.90%|Medium| +|15|[3Sum](https://github.com/grandyang/leetcode/issues/15)|16.90%|Medium| +|14|[Longest Common Prefix](https://github.com/grandyang/leetcode/issues/14)|25.50%|Easy| +|13|[Roman to Integer](https://github.com/grandyang/leetcode/issues/13)|34.00%|Easy| +|12|[Integer to Roman](https://github.com/grandyang/leetcode/issues/12)|33.80%|Medium| +|11|[Container With Most Water](https://github.com/grandyang/leetcode/issues/11)|32.00%|Medium| +|10|[Regular Expression Matching](https://github.com/grandyang/leetcode/issues/10)|20.70%|Hard| +|9|[Palindrome Number](https://github.com/grandyang/leetcode/issues/9)|28.30%|Easy| +|8|[String to Integer (atoi)](https://github.com/grandyang/leetcode/issues/8)|13.00%|Easy| +|7|[Reverse Integer](https://github.com/grandyang/leetcode/issues/7)|25.10%|Easy| +|6|[ZigZag Conversion](https://github.com/grandyang/leetcode/issues/6)|21.80%|Easy| +|5|[Longest Palindromic Substring](https://github.com/grandyang/leetcode/issues/5)|20.70%|Medium| +|4|[Median of Two Sorted Arrays](https://github.com/grandyang/leetcode/issues/4)|17.40%|Hard| +|3|[Longest Substring Without Repeating Characters](https://github.com/grandyang/leetcode/issues/3)|20.60%|Medium| +|2|[Add Two Numbers](https://github.com/grandyang/leetcode/issues/2)|21.10%|Medium| +|1|[Two Sum](https://github.com/grandyang/leetcode/issues/1)|17.70%|Medium| + + @@ -961,7 +1398,7 @@ This app displays all practical coding problems from leetcode.com, and provids t ### Available on Apple Store: -[https://itunes.apple.com/us/app/leetcode-meet-me/id1227610436?mt=8](https://itunes.apple.com/us/app/leetcode-meet-me/id1227610436?mt=8) +Not available anymore.
@@ -972,6 +1409,9 @@ If you like this project and want to sponsor the author, you can reward the auth
+Or you can also sponsor me by scanning the following Venmo QR code. + +

diff --git a/plugin.gif b/plugin.gif new file mode 100644 index 0000000..21247a4 Binary files /dev/null and b/plugin.gif differ diff --git a/podcast.png b/podcast.png new file mode 100644 index 0000000..3b52d5f Binary files /dev/null and b/podcast.png differ diff --git a/venmo.gif b/venmo.gif new file mode 100644 index 0000000..9f111c4 Binary files /dev/null and b/venmo.gif differ diff --git a/venmo.png b/venmo.png new file mode 100644 index 0000000..7cf9fb0 Binary files /dev/null and b/venmo.png differ