diff --git a/README.md b/README.md
index fd786e1..3772764 100644
--- a/README.md
+++ b/README.md
@@ -1,39 +1,89 @@
# LeetcodeTop
-本仓库用于汇总互联网公司技术岗考察leetcode题目的热度:fire:，帮助同学们更加有针对性地准备面试。
+本仓库用于汇总互联网公司技术岗考察Leetcode题目的热度:fire:，帮助同学们更加有针对性地准备面试。
-:loudspeaker: [2020.10.22] **为方便大家高效检索题目，推出LeetcodeTop网站，当前支持公司+部门+岗位自由组合查询，欢迎前来使用**[https://leetcode-cn.top/](https://leetcode-cn.top/)
-
-点我预览web端页面
-
- 
-
+频度数据都是我人工整理面经而得，这耗费我非常多的精力。希望你可以点个star⭐，给我一点坚持下去的动力，感激不尽！
+
+我开发的**CodeTop网站**([https://codetop.cc](https://codetop.cc))，支持按**公司**、**部门**、**岗位**组合查询仓库中的数据，方便大家高效检索。
+
+> 点击下载[大厂面经导航.xlsx](https://pan.baidu.com/s/1yCCeNMb0FNCJKDIE6EASYA)，提取码【lrp3】。面经导航包括我汇总过的几千篇面经，支持按部门、岗位定位面经链接，覆盖字节跳动、腾讯、美团、快手、虾皮等公司。
+
+相对于力扣官方企业题库，本仓库有以下优点
+
+1. 免费开放：汇总的高频题目免费分享给大家
+2. 分类精细：按公司、部门1、岗位进行分类，方便大家更针对性地准备面试
+3. 题源可靠：全网收录题目考察情况2，渠道不限于牛客、CSDN博客、热心网友分享等
+4. 本土特色：汇总办公地位于中国大陆的互联网企业
+注1：若想按部门查询题目，请在[CodeTop网站](http://codetop.cc)或CodeTop小程序查看
+注2：为保证数据真实可信，[issues](https://github.com/afatcoder/LeetcodeTop/issues)中会声名了所有涉及的原文链接
+
+:speech_balloon:面试交流：若想加入大厂面试真题交流群，请在公众号「一个搬砖的胖子」后台回复「加群」，添加我的微信后即被拉群
+
+
:information_source:数据来源：牛客网笔经面经，题目的原始文章链接已放在[issues](https://github.com/afatcoder/LeetcodeTop/issues)中
-:warning:若转载本文章，需注明本仓库地址哦
+:warning:使用本仓库的频度数据或转载文章，需注明本仓库地址！侵权必究！
-## 微软（更新至牛客11.23日的面经）
+## 微软中国（更新至牛客2021.8.20的面经）
- [SDE](https://github.com/afatcoder/LeetcodeTop/blob/master/microsoft/SDE.md)
-## 字节跳动（更新至牛客9.1日的面经）
+## 虾皮shopee（更新至虾皮2021.7.28的面经）
+
+按岗位分类
+
+- [后端](https://github.com/afatcoder/LeetcodeTop/blob/master/shopee/backend.md)
+- [算法](https://github.com/afatcoder/LeetcodeTop/blob/master/shopee/algorithm.md)
+- [客户端](https://github.com/afatcoder/LeetcodeTop/blob/master/shopee/client.md)
+- [前端](https://github.com/afatcoder/LeetcodeTop/blob/master/shopee/frontend.md)
+- [测试](https://github.com/afatcoder/LeetcodeTop/blob/master/shopee/test.md)
+- [数据开发](https://github.com/afatcoder/LeetcodeTop/blob/master/shopee/data.md)
+
+
+
+## 字节跳动（更新至牛客2021.7.19的面经）
按岗位分类
- [7.28~9.1面试考察的题目](https://github.com/afatcoder/LeetcodeTop/blob/master/bytedance/latest.md)
- [后端](https://github.com/afatcoder/LeetcodeTop/blob/master/bytedance/backend.md)
- [算法](https://github.com/afatcoder/LeetcodeTop/blob/master/bytedance/algorithm.md)
- [客户端](https://github.com/afatcoder/LeetcodeTop/blob/master/bytedance/client.md)
- [前端](https://github.com/afatcoder/LeetcodeTop/blob/master/bytedance/frontend.md)
- [测试](https://github.com/afatcoder/LeetcodeTop/blob/master/bytedance/test.md)
+- [数据开发](https://github.com/afatcoder/LeetcodeTop/blob/master/bytedance/data.md)
+
+
+## 亚马逊中国（更新至牛客2021.6.9的面经）
+- [SDE](https://github.com/afatcoder/LeetcodeTop/blob/master/amazon/SDE.md)
+
+## 美团（更新至牛客2021.4.23面经）
+
+按岗位分类
+
+- [后端](https://github.com/afatcoder/LeetcodeTop/blob/master/meituan/backend.md)
+- [算法](https://github.com/afatcoder/LeetcodeTop/blob/master/meituan/algorithm.md)
+- [客户端](https://github.com/afatcoder/LeetcodeTop/blob/master/meituan/client.md)
+- [前端](https://github.com/afatcoder/LeetcodeTop/blob/master/meituan/frontend.md)
+- [测试](https://github.com/afatcoder/LeetcodeTop/blob/master/meituan/test.md)
+- [数据开发](https://github.com/afatcoder/LeetcodeTop/blob/master/meituan/data.md)
+
+
+## 腾讯（更新至牛客2021.4.12的面经）
+
+按岗位分类
+
+- [后端](https://github.com/afatcoder/LeetcodeTop/blob/master/tencent/backend.md)
+- [算法](https://github.com/afatcoder/LeetcodeTop/blob/master/tencent/algorithm.md)
+- [客户端](https://github.com/afatcoder/LeetcodeTop/blob/master/tencent/client.md)
+- [前端](https://github.com/afatcoder/LeetcodeTop/blob/master/tencent/frontend.md)
+- [测试](https://github.com/afatcoder/LeetcodeTop/blob/master/tencent/test.md)
-## 猿辅导（更新至牛客8.31日的面经）
+## 猿辅导（更新至牛客3.5日的面经）
按岗位分类
-[8.1~8.31面试考察的题目](https://github.com/afatcoder/LeetcodeTop/blob/master/yuanfudao/new.md)
- [后端](https://github.com/afatcoder/LeetcodeTop/blob/master/yuanfudao/backend.md)
- [算法](https://github.com/afatcoder/LeetcodeTop/blob/master/yuanfudao/algorithm.md)
- [客户端](https://github.com/afatcoder/LeetcodeTop/blob/master/yuanfudao/client.md)
@@ -42,6 +92,19 @@
- [数据开发](https://github.com/afatcoder/LeetcodeTop/blob/master/yuanfudao/data.md)
+## 快手（更新至牛客3.5日的面经）
+
+按岗位分类
+
+- [后端](https://github.com/afatcoder/LeetcodeTop/blob/master/kuaishou/backend.md)
+- [算法](https://github.com/afatcoder/LeetcodeTop/blob/master/kuaishou/algorithm.md)
+- [客户端](https://github.com/afatcoder/LeetcodeTop/blob/master/kuaishou/client.md)
+- [前端](https://github.com/afatcoder/LeetcodeTop/blob/master/kuaishou/frontend.md)
+- [测试](https://github.com/afatcoder/LeetcodeTop/blob/master/kuaishou/test.md)
+- [数据开发](https://github.com/afatcoder/LeetcodeTop/blob/master/kuaishou/data.md)
+
+
+
## 百度(更新至牛客8.7日的面经)
按岗位分类
@@ -53,17 +116,6 @@
- [测试](https://github.com/afatcoder/LeetcodeTop/blob/master/baidu/test.md)
-## 快手（更新至牛客8.12日的面经）
-
-按岗位分类
-
-- [后端](https://github.com/afatcoder/LeetcodeTop/blob/master/kuaishou/backend.md)
-- [算法](https://github.com/afatcoder/LeetcodeTop/blob/master/kuaishou/algorithm.md)
-- [客户端](https://github.com/afatcoder/LeetcodeTop/blob/master/kuaishou/client.md)
-- [前端](https://github.com/afatcoder/LeetcodeTop/blob/master/kuaishou/frontend.md)
-- [测试](https://github.com/afatcoder/LeetcodeTop/blob/master/kuaishou/test.md)
-- [数据开发](https://github.com/afatcoder/LeetcodeTop/blob/master/kuaishou/data.md)
-
## 阿里巴巴
@@ -77,4 +129,7 @@
- [测试](https://github.com/afatcoder/LeetcodeTop/blob/master/alibaba/test.md)
-
+## 捐赠
+如果你觉得本项目帮助到了你，你可以帮作者买一杯果汁表示鼓励🍹
+
+
diff --git a/amazon/SDE.md b/amazon/SDE.md
new file mode 100644
index 0000000..26e64f8
--- /dev/null
+++ b/amazon/SDE.md
@@ -0,0 +1,31 @@
+- 题目原文链接见[issues](https://github.com/afatcoder/LeetcodeTop/issues)
+- 若想按部门/难度/题型筛选题目，可以在[CodeTop](https://codetop.cc) 查询
+
+|题目|出现次数|链接|
+|-|-|-|
+|3. 无重复字符的最长子串|2|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|146. LRU缓存机制|2|https://leetcode-cn.com/problems/lru-cache|
+|120. 三角形最小路径和|2|https://leetcode-cn.com/problems/triangle|
+|102. 二叉树的层序遍历|2|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|110. 平衡二叉树|2|https://leetcode-cn.com/problems/balanced-binary-tree|
+|200. 岛屿数量|1|https://leetcode-cn.com/problems/number-of-islands|
+|10. 正则表达式匹配|1|https://leetcode-cn.com/problems/regular-expression-matching|
+|129. 求根到叶子节点数字之和|1|https://leetcode-cn.com/problems/sum-root-to-leaf-numbers|
+|227. 基本计算器 II|1|https://leetcode-cn.com/problems/basic-calculator-ii|
+|343. 整数拆分|1|https://leetcode-cn.com/problems/integer-break|
+|215. 数组中的第K个最大元素|1|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|121. 买卖股票的最佳时机|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|剑指 Offer 53 - II. 0～n-1中缺失的数字|1|https://leetcode-cn.com/problems/que-shi-de-shu-zi-lcof|
+|378. 有序矩阵中第K小的元素|1|https://leetcode-cn.com/problems/kth-smallest-element-in-a-sorted-matrix|
+|8. 字符串转换整数 (atoi)|1|https://leetcode-cn.com/problems/string-to-integer-atoi|
+|486. 预测赢家|1|https://leetcode-cn.com/problems/predict-the-winner|
+|15. 三数之和|1|https://leetcode-cn.com/problems/3sum|
+|781. 森林中的兔子|1|https://leetcode-cn.com/problems/rabbits-in-forest|
+|剑指 Offer 36. 二叉搜索树与双向链表|1|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-yu-shuang-xiang-lian-biao-lcof|
+|46. 全排列|1|https://leetcode-cn.com/problems/permutations|
+|23. 合并K个排序链表|1|https://leetcode-cn.com/problems/merge-k-sorted-lists|
+|460. LFU缓存|1|https://leetcode-cn.com/problems/lfu-cache|
+|2. 两数相加|1|https://leetcode-cn.com/problems/add-two-numbers|
+|4. 寻找两个正序数组的中位数|1|https://leetcode-cn.com/problems/median-of-two-sorted-arrays|
+|611. 有效三角形的个数|1|https://leetcode-cn.com/problems/valid-triangle-number|
+|面试题 08.05. 递归乘法|1|https://leetcode-cn.com/problems/recursive-mulitply-lcci|
diff --git a/bytedance/algorithm.md b/bytedance/algorithm.md
index 97db2bc..8e5665b 100644
--- a/bytedance/algorithm.md
+++ b/bytedance/algorithm.md
@@ -1,41 +1,140 @@
-如果只想看本次更新的数据(07.07~07.18)，请[点我](https://github.com/afatcoder/LeetcodeTop/blob/master/bytedance//latest/algorithm.md)
+# 算法
+我最近开发的[CodeTop网站](https://codetop.cc)可以按照**部门**、**难度**筛选，比markdown更方便检索
-| 公司 | 岗位 | 题目 | 次数 |
-|------|----|---------------------------|----|
-| 字节跳动 | 算法 | 215\. 数组中的第K个最大元素 | 3 |
-| 字节跳动 | 算法 | 4\. 寻找两个正序数组的中位数 | 2 |
-| 字节跳动 | 算法 | 33\. 搜索旋转排序数组 | 1 |
-| 字节跳动 | 算法 | 200\. 岛屿数量 | 1 |
-| 字节跳动 | 算法 | 297\. 二叉树的序列化与反序列化 | 1 |
-| 字节跳动 | 算法 | 636\. 函数的独占时间 | 1 |
-| 字节跳动 | 算法 | 103\. 二叉树的锯齿形层次遍历 | 1 |
-| 字节跳动 | 算法 | 160\. 相交链表 | 1 |
-| 字节跳动 | 算法 | 3\. 无重复字符的最长子串 | 1 |
-| 字节跳动 | 算法 | 572\. 另一个树的子树 | 1 |
-| 字节跳动 | 算法 | 104\. 二叉树的最大深度 | 1 |
-| 字节跳动 | 算法 | 110\. 平衡二叉树 | 1 |
-| 字节跳动 | 算法 | 剑指 Offer 55 \- II\. 平衡二叉树 | 1 |
-| 字节跳动 | 算法 | 814\. 二叉树剪枝 | 1 |
-| 字节跳动 | 算法 | 23\. 合并K个排序链表 | 1 |
-| 字节跳动 | 算法 | 1\. 两数之和 | 1 |
-| 字节跳动 | 算法 | 445\. 两数相加 II | 1 |
-| 字节跳动 | 算法 | 2\. 两数相加 | 1 |
-| 字节跳动 | 算法 | 62\. 不同路径 | 1 |
-| 字节跳动 | 算法 | 63\. 不同路径 II | 1 |
-| 字节跳动 | 算法 | 剑指 Offer 29\. 顺时针打印矩阵 | 1 |
-| 字节跳动 | 算法 | 509\. 斐波那契数 | 1 |
-| 字节跳动 | 算法 | 20\. 有效的括号 | 1 |
-| 字节跳动 | 算法 | 240\. 搜索二维矩阵 II | 1 |
-| 字节跳动 | 算法 | 102\. 二叉树的层序遍历 | 1 |
-| 字节跳动 | 算法 | 105\. 从前序与中序遍历序列构造二叉树 | 1 |
-| 字节跳动 | 算法 | 206\. 反转链表 | 1 |
-| 字节跳动 | 算法 | 264\. 丑数 II | 1 |
-| 字节跳动 | 算法 | 437\. 路径总和 III | 1 |
-| 字节跳动 | 算法 | 560\. 和为K的子数组 | 1 |
-| 字节跳动 | 算法 | 169\. 多数元素 | 1 |
-| 字节跳动 | 算法 | 142\. 环形链表 II | 1 |
-| 字节跳动 | 算法 | 88\. 合并两个有序数组 | 1 |
-| 字节跳动 | 算法 | 152\. 乘积最大子数组 | 1 |
-| 字节跳动 | 算法 | 255\.验证前序遍历序列二叉搜索树 | 1 |
-| 字节跳动 | 算法 | 剑指 Offer 09\. 用两个栈实现队列 | 1 |
-| 字节跳动 | 算法 | 124\. 二叉树中的最大路径和 | 1 |
+|题目|出现次数|链接|
+|-|-|-|
+|72. 编辑距离|8|https://leetcode-cn.com/problems/edit-distance|
+|103. 二叉树的锯齿形层次遍历|7|https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal|
+|215. 数组中的第K个最大元素|6|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|236. 二叉树的最近公共祖先|6|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree|
+|300. 最长上升子序列|6|https://leetcode-cn.com/problems/longest-increasing-subsequence|
+|200. 岛屿数量|5|https://leetcode-cn.com/problems/number-of-islands|
+|33. 搜索旋转排序数组|4|https://leetcode-cn.com/problems/search-in-rotated-sorted-array|
+|69. x 的平方根|4|https://leetcode-cn.com/problems/sqrtx|
+|3. 无重复字符的最长子串|3|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|23. 合并K个排序链表|3|https://leetcode-cn.com/problems/merge-k-sorted-lists|
+|4. 寻找两个正序数组的中位数|3|https://leetcode-cn.com/problems/median-of-two-sorted-arrays|
+|剑指 Offer 29. 顺时针打印矩阵|3|https://leetcode-cn.com/problems/shun-shi-zhen-da-yin-ju-zhen-lcof|
+|695. 岛屿的最大面积|3|https://leetcode-cn.com/problems/max-area-of-island|
+|240. 搜索二维矩阵 II|3|https://leetcode-cn.com/problems/search-a-2d-matrix-ii|
+|102. 二叉树的层序遍历|3|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|49. 字母异位词分组|3|https://leetcode-cn.com/problems/group-anagrams|
+|209. 长度最小的子数组|3|https://leetcode-cn.com/problems/minimum-size-subarray-sum|
+|85. 最大矩形|3|https://leetcode-cn.com/problems/maximal-rectangle|
+|287. 寻找重复数|3|https://leetcode-cn.com/problems/find-the-duplicate-number|
+|64. 最小路径和|3|https://leetcode-cn.com/problems/minimum-path-sum|
+|5. 最长回文子串|3|https://leetcode-cn.com/problems/longest-palindromic-substring|
+|46. 全排列|3|https://leetcode-cn.com/problems/permutations|
+|121. 买卖股票的最佳时机|3|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|15. 三数之和|3|https://leetcode-cn.com/problems/3sum|
+|394. 字符串解码|3|https://leetcode-cn.com/problems/decode-string|
+|110. 平衡二叉树|2|https://leetcode-cn.com/problems/balanced-binary-tree|
+|572. 另一个树的子树|2|https://leetcode-cn.com/problems/subtree-of-another-tree|
+|1. 两数之和|2|https://leetcode-cn.com/problems/two-sum|
+|105. 从前序与中序遍历序列构造二叉树|2|https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal|
+|206. 反转链表|2|https://leetcode-cn.com/problems/reverse-linked-list|
+|88. 合并两个有序数组|2|https://leetcode-cn.com/problems/merge-sorted-array|
+|152. 乘积最大子数组|2|https://leetcode-cn.com/problems/maximum-product-subarray|
+|70. 爬楼梯|2|https://leetcode-cn.com/problems/climbing-stairs|
+|48. 旋转图像|2|https://leetcode-cn.com/problems/rotate-image|
+|剑指 Offer 36. 二叉搜索树与双向链表|2|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-yu-shuang-xiang-lian-biao-lcof|
+|179. 最大数|2|https://leetcode-cn.com/problems/largest-number|
+|剑指 Offer 51. 数组中的逆序对|2|https://leetcode-cn.com/problems/shu-zu-zhong-de-ni-xu-dui-lcof|
+|143. 重排链表|2|https://leetcode-cn.com/problems/reorder-list|
+|239. 滑动窗口最大值|2|https://leetcode-cn.com/problems/sliding-window-maximum|
+|238. 除自身以外数组的乘积|2|https://leetcode-cn.com/problems/product-of-array-except-self|
+|25. K 个一组翻转链表|2|https://leetcode-cn.com/problems/reverse-nodes-in-k-group|
+|129. 求根到叶子节点数字之和|2|https://leetcode-cn.com/problems/sum-root-to-leaf-numbers|
+|补充题4. 手撕快速排序|2|https://leetcode-cn.com/problems/sort-an-array|
+|42. 接雨水|2|https://leetcode-cn.com/problems/trapping-rain-water|
+|415. 字符串相加|2|https://leetcode-cn.com/problems/add-strings|
+|221. 最大正方形|2|https://leetcode-cn.com/problems/maximal-square|
+|400. 第N个数字|2|https://leetcode-cn.com/problems/nth-digit|
+|54. 螺旋矩阵|2|https://leetcode-cn.com/problems/spiral-matrix|
+|104. 二叉树的最大深度|1|https://leetcode-cn.com/problems/maximum-depth-of-binary-tree|
+|160. 相交链表|1|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
+|636. 函数的独占时间|1|https://leetcode-cn.com/problems/exclusive-time-of-functions|
+|297. 二叉树的序列化与反序列化|1|https://leetcode-cn.com/problems/serialize-and-deserialize-binary-tree|
+|814. 二叉树剪枝|1|https://leetcode-cn.com/problems/binary-tree-pruning|
+|445. 两数相加 II|1|https://leetcode-cn.com/problems/add-two-numbers-ii|
+|2. 两数相加|1|https://leetcode-cn.com/problems/add-two-numbers|
+|62. 不同路径|1|https://leetcode-cn.com/problems/unique-paths|
+|63. 不同路径 II|1|https://leetcode-cn.com/problems/unique-paths-ii|
+|509. 斐波那契数|1|https://leetcode-cn.com/problems/fibonacci-number|
+|128. 最长连续序列|1|https://leetcode-cn.com/problems/longest-consecutive-sequence|
+|20. 有效的括号|1|https://leetcode-cn.com/problems/valid-parentheses|
+|264. 丑数 II|1|https://leetcode-cn.com/problems/ugly-number-ii|
+|437. 路径总和 III|1|https://leetcode-cn.com/problems/path-sum-iii|
+|560. 和为K的子数组|1|https://leetcode-cn.com/problems/subarray-sum-equals-k|
+|169. 多数元素|1|https://leetcode-cn.com/problems/majority-element|
+|142. 环形链表 II|1|https://leetcode-cn.com/problems/linked-list-cycle-ii|
+|255. 验证前序遍历序列二叉搜索树|1|https://leetcode-cn.com/problems/verify-preorder-sequence-in-binary-search-tree|
+|剑指 Offer 09. 用两个栈实现队列|1|https://leetcode-cn.com/problems/yong-liang-ge-zhan-shi-xian-dui-lie-lcof|
+|124. 二叉树中的最大路径和|1|https://leetcode-cn.com/problems/binary-tree-maximum-path-sum|
+|剑指 Offer 54. 二叉搜索树的第k大节点|1|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-di-kda-jie-dian-lcof|
+|518. 零钱兑换 II|1|https://leetcode-cn.com/problems/coin-change-2|
+|50. Pow(x, n)|1|https://leetcode-cn.com/problems/powx-n|
+|122. 买卖股票的最佳时机 II|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-ii|
+|807. 保持城市天际线|1|https://leetcode-cn.com/problems/max-increase-to-keep-city-skyline|
+|123. 买卖股票的最佳时机 III|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iii|
+|315. 计算右侧小于当前元素的个数|1|https://leetcode-cn.com/problems/count-of-smaller-numbers-after-self|
+|1363. 形成三的最大倍数|1|https://leetcode-cn.com/problems/largest-multiple-of-three|
+|376. 摆动序列|1|https://leetcode-cn.com/problems/wiggle-subsequence|
+|1143. 最长公共子序列|1|https://leetcode-cn.com/problems/longest-common-subsequence|
+|32. 最长有效括号|1|https://leetcode-cn.com/problems/longest-valid-parentheses|
+|718. 最长重复子数组|1|https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray|
+|440. 字典序的第K小数字|1|https://leetcode-cn.com/problems/k-th-smallest-in-lexicographical-order|
+|334. 递增的三元子序列|1|https://leetcode-cn.com/problems/increasing-triplet-subsequence|
+|582. 杀死进程|1|https://leetcode-cn.com/problems/kill-process|
+|面试题 16.03. 交点|1|https://leetcode-cn.com/problems/intersection-lcci|
+|96. 不同的二叉搜索树|1|https://leetcode-cn.com/problems/unique-binary-search-trees|
+|41. 缺失的第一个正数|1|https://leetcode-cn.com/problems/first-missing-positive|
+|403. 青蛙过河|1|https://leetcode-cn.com/problems/frog-jump|
+|726. 原子的数量|1|https://leetcode-cn.com/problems/number-of-atoms|
+|剑指 Offer 10- I. 斐波那契数列|1|https://leetcode-cn.com/problems/fei-bo-na-qi-shu-lie-lcof|
+|405. 数字转换为十六进制数|1|https://leetcode-cn.com/problems/convert-a-number-to-hexadecimal|
+|1420. 生成数组|1|https://leetcode-cn.com/problems/build-array-where-you-can-find-the-maximum-exactly-k-comparisons|
+|306. 累加数|1|https://leetcode-cn.com/problems/additive-number|
+|98. 验证二叉搜索树|1|https://leetcode-cn.com/problems/validate-binary-search-tree|
+|227. 基本计算器 II|1|https://leetcode-cn.com/problems/basic-calculator-ii|
+|1505. 最多 K 次交换相邻数位后得到的最小整数|1|https://leetcode-cn.com/problems/minimum-possible-integer-after-at-most-k-adjacent-swaps-on-digits|
+|632. 最小区间|1|https://leetcode-cn.com/problems/smallest-range-covering-elements-from-k-lists|
+|871. 最低加油次数|1|https://leetcode-cn.com/problems/minimum-number-of-refueling-stops|
+|107. 二叉树的层次遍历 II|1|https://leetcode-cn.com/problems/binary-tree-level-order-traversal-ii|
+|407. 接雨水 II|1|https://leetcode-cn.com/problems/trapping-rain-water-ii|
+|199. 二叉树的右视图|1|https://leetcode-cn.com/problems/binary-tree-right-side-view|
+|84. 柱状图中最大的矩形|1|https://leetcode-cn.com/problems/largest-rectangle-in-histogram|
+|74. 搜索二维矩阵|1|https://leetcode-cn.com/problems/search-a-2d-matrix|
+|329. 矩阵中的最长递增路径|1|https://leetcode-cn.com/problems/longest-increasing-path-in-a-matrix|
+|172. 阶乘后的零|1|https://leetcode-cn.com/problems/factorial-trailing-zeroes|
+|153. 寻找旋转排序数组中的最小值|1|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array|
+|432. 全 O(1) 的数据结构|1|https://leetcode-cn.com/problems/all-oone-data-structure|
+|470. 用 Rand7() 实现 Rand10()|1|https://leetcode-cn.com/problems/implement-rand10-using-rand7|
+|164. 最大间距|1|https://leetcode-cn.com/problems/maximum-gap|
+|94. 二叉树的中序遍历|1|https://leetcode-cn.com/problems/binary-tree-inorder-traversal|
+|剑指 Offer 62. 圆圈中最后剩下的数字|1|https://leetcode-cn.com/problems/yuan-quan-zhong-zui-hou-sheng-xia-de-shu-zi-lcof|
+|658. 找到 K 个最接近的元素|1|https://leetcode-cn.com/problems/find-k-closest-elements|
+|704. 二分查找|1|https://leetcode-cn.com/problems/binary-search|
+|355. 设计推特|1|https://leetcode-cn.com/problems/design-twitter|
+|剑指 Offer 11. 旋转数组的最小数字|1|https://leetcode-cn.com/problems/xuan-zhuan-shu-zu-de-zui-xiao-shu-zi-lcof|
+|698. 划分为k个相等的子集|1|https://leetcode-cn.com/problems/partition-to-k-equal-sum-subsets|
+|224. 基本计算器|1|https://leetcode-cn.com/problems/basic-calculator|
+|剑指 Offer 22. 链表中倒数第k个节点|1|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
+|31. 下一个排列|1|https://leetcode-cn.com/problems/next-permutation|
+|875. 爱吃香蕉的珂珂|1|https://leetcode-cn.com/problems/koko-eating-bananas|
+|145. 二叉树的后序遍历|1|https://leetcode-cn.com/problems/binary-tree-postorder-traversal|
+|19. 删除链表的倒数第N个节点|1|https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list|
+|673. 最长递增子序列的个数|1|https://leetcode-cn.com/problems/number-of-longest-increasing-subsequence|
+|剑指 Offer 34. 二叉树中和为某一值的路径|1|https://leetcode-cn.com/problems/er-cha-shu-zhong-he-wei-mou-yi-zhi-de-lu-jing-lcof|
+|670. 最大交换|1|https://leetcode-cn.com/problems/maximum-swap|
+|141. 环形链表|1|https://leetcode-cn.com/problems/linked-list-cycle|
+|897. 递增顺序查找树|1|https://leetcode-cn.com/problems/increasing-order-search-tree|
+|653. 两数之和 IV - 输入 BST|1|https://leetcode-cn.com/problems/two-sum-iv-input-is-a-bst|
+|310. 最小高度树|1|https://leetcode-cn.com/problems/minimum-height-trees|
+|167. 两数之和 II - 输入有序数组|1|https://leetcode-cn.com/problems/two-sum-ii-input-array-is-sorted|
+|611. 有效三角形的个数|1|https://leetcode-cn.com/problems/valid-triangle-number|
+|92. 反转链表 II|1|https://leetcode-cn.com/problems/reverse-linked-list-ii|
+|剑指 Offer 07. 重建二叉树|1|https://leetcode-cn.com/problems/zhong-jian-er-cha-shu-lcof|
+|525. 连续数组|1|https://leetcode-cn.com/problems/contiguous-array|
+|144. 二叉树的前序遍历|1|https://leetcode-cn.com/problems/binary-tree-preorder-traversal|
+|378. 有序矩阵中第K小的元素|1|https://leetcode-cn.com/problems/kth-smallest-element-in-a-sorted-matrix|
\ No newline at end of file
diff --git a/bytedance/backend.md b/bytedance/backend.md
index 4f81aae..942c613 100644
--- a/bytedance/backend.md
+++ b/bytedance/backend.md
@@ -1,50 +1,346 @@
-如果只想看本次更新的数据(07.07~07.18)，请[点我](https://github.com/afatcoder/LeetcodeTop/blob/master/bytedance//latest/backend.md)
+# 后端
+我开发的[CodeTop题库](https://codetop.cc)可以按照部门、难度筛选，比markdown更方便查询高频题
-| 公司 | 岗位 | 题目 | 次数 |
-|------|----|-------------------------|----|
-| 字节跳动 | 后端 | 25\. K 个一组翻转链表 | 9 |
-| 字节跳动 | 后端 | 3\. 无重复字符的最长子串 | 8 |
-| 字节跳动 | 后端 | 102\. 二叉树的层序遍历 | 6 |
-| 字节跳动 | 后端 | 124\. 二叉树中的最大路径和 | 6 |
-| 字节跳动 | 后端 | 206\. 反转链表 | 6 |
-| 字节跳动 | 后端 | 15\. 三数之和 | 6 |
-| 字节跳动 | 后端 | 146\. LRU缓存机制 | 6 |
-| 字节跳动 | 后端 | 215\. 数组中的第K个最大元素 | 5 |
-| 字节跳动 | 后端 | 2\. 两数相加 | 5 |
-| 字节跳动 | 后端 | 141\. 环形链表 | 5 |
-| 字节跳动 | 后端 | 234\. 回文链表 | 5 |
-| 字节跳动 | 后端 | 155\. 最小栈 | 4 |
-| 字节跳动 | 后端 | 105\. 从前序与中序遍历序列构造二叉树 | 4 |
-| 字节跳动 | 后端 | 33\. 搜索旋转排序数组 | 4 |
-| 字节跳动 | 后端 | 160\. 相交链表 | 4 |
-| 字节跳动 | 后端 | 128\. 最长连续序列 | 4 |
-| 字节跳动 | 后端 | 103\. 二叉树的锯齿形层次遍历 | 4 |
-| 字节跳动 | 后端 | 113\. 路径总和 II | 4 |
-| 字节跳动 | 后端 | 121\.买卖股票 | 3 |
-| 字节跳动 | 后端 | 108\. 将有序数组转换为二叉搜索树 | 3 |
-| 字节跳动 | 后端 | 199\.二叉树的右视图 | 3 |
-| 字节跳动 | 后端 | 88\. 合并两个有序数组 | 3 |
-| 字节跳动 | 后端 | 162\. 寻找峰值 | 3 |
-| 字节跳动 | 后端 | 56\. 合并区间 | 3 |
-| 字节跳动 | 后端 | 110\. 平衡二叉树 | 3 |
-| 字节跳动 | 后端 | 236\. 二叉树的最近公共祖先 | 3 |
-| 字节跳动 | 后端 | 322\. 零钱兑换 | 3 |
-| 字节跳动 | 后端 | 101\. 对称二叉树 | 3 |
-| 字节跳动 | 后端 | 199\. 二叉树的右视图 | 3 |
-| 字节跳动 | 后端 | 20\. 有效的括号 | 3 |
-| 字节跳动 | 后端 | 143\. 重排链表 | 3 |
-| 字节跳动 | 后端 | 54\. 螺旋矩阵 | 2 |
-| 字节跳动 | 后端 | 221\. 最大正方形 | 2 |
-| 字节跳动 | 后端 | 23\. 合并K个排序链表 | 2 |
-| 字节跳动 | 后端 | 83\. 删除排序链表中的重复元素 | 2 |
-| 字节跳动 | 后端 | 70\. 爬楼梯 | 2 |
-| 字节跳动 | 后端 | 剑指 Offer 61\. 扑克牌中的顺子 | 2 |
-| 字节跳动 | 后端 | 32\. 最长有效括号 | 2 |
-| 字节跳动 | 后端 | 剑指 Offer 42\. 连续子数组的最大和 | 2 |
-| 字节跳动 | 后端 | 415\. 字符串相加 | 2 |
-| 字节跳动 | 后端 | 41\. 缺失的第一个正数 | 2 |
-| 字节跳动 | 后端 | 704\. 二分查找 | 2 |
-| 字节跳动 | 后端 | 958\. 二叉树的完全性检验 | 2 |
-| 字节跳动 | 后端 | 69\. x 的平方根 | 2 |
-| 字节跳动 | 后端 | 114\. 二叉树展开为链表 | 2 |
-| 字节跳动 | 后端 | 200\. 岛屿数量 | 1 |
+|题目|出现次数|链接|
+|-|-|-|
+|25. K 个一组翻转链表|60|https://leetcode-cn.com/problems/reverse-nodes-in-k-group|
+|3. 无重复字符的最长子串|57|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|146. LRU缓存机制|53|https://leetcode-cn.com/problems/lru-cache|
+|215. 数组中的第K个最大元素|52|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|206. 反转链表|51|https://leetcode-cn.com/problems/reverse-linked-list|
+|103. 二叉树的锯齿形层次遍历|47|https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal|
+|15. 三数之和|42|https://leetcode-cn.com/problems/3sum|
+|121. 买卖股票的最佳时机|41|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|160. 相交链表|32|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
+|236. 二叉树的最近公共祖先|32|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree|
+|42. 接雨水|31|https://leetcode-cn.com/problems/trapping-rain-water|
+|33. 搜索旋转排序数组|27|https://leetcode-cn.com/problems/search-in-rotated-sorted-array|
+|31. 下一个排列|27|https://leetcode-cn.com/problems/next-permutation|
+|199. 二叉树的右视图|24|https://leetcode-cn.com/problems/binary-tree-right-side-view|
+|54. 螺旋矩阵|24|https://leetcode-cn.com/problems/spiral-matrix|
+|143. 重排链表|24|https://leetcode-cn.com/problems/reorder-list|
+|23. 合并K个排序链表|23|https://leetcode-cn.com/problems/merge-k-sorted-lists|
+|21. 合并两个有序链表|22|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|300. 最长上升子序列|21|https://leetcode-cn.com/problems/longest-increasing-subsequence|
+|69. x 的平方根|20|https://leetcode-cn.com/problems/sqrtx|
+|92. 反转链表 II|20|https://leetcode-cn.com/problems/reverse-linked-list-ii|
+|105. 从前序与中序遍历序列构造二叉树|19|https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal|
+|1. 两数之和|19|https://leetcode-cn.com/problems/two-sum|
+|124. 二叉树中的最大路径和|18|https://leetcode-cn.com/problems/binary-tree-maximum-path-sum|
+|200. 岛屿数量|18|https://leetcode-cn.com/problems/number-of-islands|
+|41. 缺失的第一个正数|17|https://leetcode-cn.com/problems/first-missing-positive|
+|101. 对称二叉树|16|https://leetcode-cn.com/problems/symmetric-tree|
+|56. 合并区间|16|https://leetcode-cn.com/problems/merge-intervals|
+|415. 字符串相加|16|https://leetcode-cn.com/problems/add-strings|
+|155. 最小栈|16|https://leetcode-cn.com/problems/min-stack|
+|46. 全排列|16|https://leetcode-cn.com/problems/permutations|
+|76. 最小覆盖子串|16|https://leetcode-cn.com/problems/minimum-window-substring|
+|补充题1. 排序奇升偶降链表|16|https://mp.weixin.qq.com/s/0WVa2wIAeG0nYnVndZiEXQ|
+|141. 环形链表|14|https://leetcode-cn.com/problems/linked-list-cycle|
+|221. 最大正方形|14|https://leetcode-cn.com/problems/maximal-square|
+|20. 有效的括号|14|https://leetcode-cn.com/problems/valid-parentheses|
+|98. 验证二叉搜索树|14|https://leetcode-cn.com/problems/validate-binary-search-tree|
+|39. 组合总和|14|https://leetcode-cn.com/problems/combination-sum|
+|102. 二叉树的层序遍历|13|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|53. 最大子序和|13|https://leetcode-cn.com/problems/maximum-subarray|
+|322. 零钱兑换|13|https://leetcode-cn.com/problems/coin-change|
+|162. 寻找峰值|13|https://leetcode-cn.com/problems/find-peak-element|
+|122. 买卖股票的最佳时机 II|13|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-ii|
+|142. 环形链表 II|13|https://leetcode-cn.com/problems/linked-list-cycle-ii|
+|48. 旋转图像|13|https://leetcode-cn.com/problems/rotate-image|
+|470. 用 Rand7() 实现 Rand10()|13|https://leetcode-cn.com/problems/implement-rand10-using-rand7|
+|补充题2. 圆环回原点问题|13|https://mp.weixin.qq.com/s/NZPaFsFrTybO3K3s7p7EVg|
+|234. 回文链表|12|https://leetcode-cn.com/problems/palindrome-linked-list|
+|518. 零钱兑换 II|12|https://leetcode-cn.com/problems/coin-change-2|
+|88. 合并两个有序数组|12|https://leetcode-cn.com/problems/merge-sorted-array|
+|2. 两数相加|12|https://leetcode-cn.com/problems/add-two-numbers|
+|32. 最长有效括号|12|https://leetcode-cn.com/problems/longest-valid-parentheses|
+|958. 二叉树的完全性检验|12|https://leetcode-cn.com/problems/check-completeness-of-a-binary-tree|
+|148. 排序链表|12|https://leetcode-cn.com/problems/sort-list|
+|198. 打家劫舍|12|https://leetcode-cn.com/problems/house-robber|
+|232. 用栈实现队列|12|https://leetcode-cn.com/problems/implement-queue-using-stacks|
+|补充题4. 手撕快速排序|12|https://leetcode-cn.com/problems/sort-an-array|
+|113. 路径总和 II|11|https://leetcode-cn.com/problems/path-sum-ii|
+|5. 最长回文子串|11|https://leetcode-cn.com/problems/longest-palindromic-substring|
+|543. 二叉树的直径|10|https://leetcode-cn.com/problems/diameter-of-binary-tree|
+|79. 单词搜索|10|https://leetcode-cn.com/problems/word-search|
+|82. 删除排序链表中的重复元素 II|10|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list-ii|
+|83. 删除排序链表中的重复元素|9|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list|
+|128. 最长连续序列|9|https://leetcode-cn.com/problems/longest-consecutive-sequence|
+|22. 括号生成|9|https://leetcode-cn.com/problems/generate-parentheses|
+|94. 二叉树的中序遍历|9|https://leetcode-cn.com/problems/binary-tree-inorder-traversal|
+|739. 每日温度|9|https://leetcode-cn.com/problems/daily-temperatures|
+|78. 子集|9|https://leetcode-cn.com/problems/subsets|
+|补充题9. 36进制加法|9|https://mp.weixin.qq.com/s/XcKQwnwCh5nZsz-DLHJwzQ|
+|剑指 Offer 54. 二叉搜索树的第k大节点|8|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-di-kda-jie-dian-lcof|
+|8. 字符串转换整数 (atoi)|8|https://leetcode-cn.com/problems/string-to-integer-atoi|
+|24. 两两交换链表中的节点|8|https://leetcode-cn.com/problems/swap-nodes-in-pairs|
+|114. 二叉树展开为链表|8|https://leetcode-cn.com/problems/flatten-binary-tree-to-linked-list|
+|剑指 Offer 22. 链表中倒数第k个节点|8|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
+|93. 复原IP地址|8|https://leetcode-cn.com/problems/restore-ip-addresses|
+|440. 字典序的第K小数字|8|https://leetcode-cn.com/problems/k-th-smallest-in-lexicographical-order|
+|70. 爬楼梯|7|https://leetcode-cn.com/problems/climbing-stairs|
+|112. 路径总和|7|https://leetcode-cn.com/problems/path-sum|
+|695. 岛屿的最大面积|7|https://leetcode-cn.com/problems/max-area-of-island|
+|138. 复制带随机指针的链表|7|https://leetcode-cn.com/problems/copy-list-with-random-pointer|
+|19. 删除链表的倒数第N个节点|7|https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list|
+|129. 求根到叶子节点数字之和|7|https://leetcode-cn.com/problems/sum-root-to-leaf-numbers|
+|662. 二叉树最大宽度|7|https://leetcode-cn.com/problems/maximum-width-of-binary-tree|
+|240. 搜索二维矩阵 II|7|https://leetcode-cn.com/problems/search-a-2d-matrix-ii|
+|556. 下一个更大元素 III|7|https://leetcode-cn.com/problems/next-greater-element-iii|
+|230. 二叉搜索树中第K小的元素|6|https://leetcode-cn.com/problems/kth-smallest-element-in-a-bst|
+|110. 平衡二叉树|6|https://leetcode-cn.com/problems/balanced-binary-tree|
+|328. 奇偶链表|6|https://leetcode-cn.com/problems/odd-even-linked-list|
+|460. LFU缓存|6|https://leetcode-cn.com/problems/lfu-cache|
+|64. 最小路径和|6|https://leetcode-cn.com/problems/minimum-path-sum|
+|61. 旋转链表|6|https://leetcode-cn.com/problems/rotate-list|
+|188. 买卖股票的最佳时机 IV|6|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iv|
+|224. 基本计算器|6|https://leetcode-cn.com/problems/basic-calculator|
+|剑指 Offer 36. 二叉搜索树与双向链表|6|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-yu-shuang-xiang-lian-biao-lcof|
+|226. 翻转二叉树|6|https://leetcode-cn.com/problems/invert-binary-tree|
+|209. 长度最小的子数组|6|https://leetcode-cn.com/problems/minimum-size-subarray-sum|
+|862. 和至少为 K 的最短子数组|6|https://leetcode-cn.com/problems/shortest-subarray-with-sum-at-least-k|
+|11. 盛最多水的容器|6|https://leetcode-cn.com/problems/container-with-most-water|
+|补充题7. 木头切割问题|6|https://mp.weixin.qq.com/s/FQma0bdAWbzLMmCKhZRk7w|
+|补充题23. 检测循环依赖|6|https://mp.weixin.qq.com/s/pCRscwKqQdYYN7M1Sia7xA|
+|108. 将有序数组转换为二叉搜索树|5|https://leetcode-cn.com/problems/convert-sorted-array-to-binary-search-tree|
+|1143. 最长公共子序列|5|https://leetcode-cn.com/problems/longest-common-subsequence|
+|297. 二叉树的序列化与反序列化|5|https://leetcode-cn.com/problems/serialize-and-deserialize-binary-tree|
+|560. 和为K的子数组|5|https://leetcode-cn.com/problems/subarray-sum-equals-k|
+|704. 二分查找|5|https://leetcode-cn.com/problems/binary-search|
+|670. 最大交换|5|https://leetcode-cn.com/problems/maximum-swap|
+|421. 数组中两个数的最大异或值|5|https://leetcode-cn.com/problems/maximum-xor-of-two-numbers-in-an-array|
+|104. 二叉树的最大深度|5|https://leetcode-cn.com/problems/maximum-depth-of-binary-tree|
+|135. 分发糖果|5|https://leetcode-cn.com/problems/candy|
+|151. 翻转字符串里的单词|5|https://leetcode-cn.com/problems/reverse-words-in-a-string|
+|287. 寻找重复数|5|https://leetcode-cn.com/problems/find-the-duplicate-number|
+|528. 按权重随机选择|5|https://leetcode-cn.com/problems/random-pick-with-weight|
+|91. 解码方法|5|https://leetcode-cn.com/problems/decode-ways|
+|59. 螺旋矩阵 II|5|https://leetcode-cn.com/problems/spiral-matrix-ii|
+|718. 最长重复子数组|5|https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray|
+|139. 单词拆分|4|https://leetcode-cn.com/problems/word-break|
+|剑指 Offer 11. 旋转数组的最小数字|4|https://leetcode-cn.com/problems/xuan-zhuan-shu-zu-de-zui-xiao-shu-zi-lcof|
+|62. 不同路径|4|https://leetcode-cn.com/problems/unique-paths|
+|剑指 Offer 51. 数组中的逆序对|4|https://leetcode-cn.com/problems/shu-zu-zhong-de-ni-xu-dui-lcof|
+|40. 组合总和 II|4|https://leetcode-cn.com/problems/combination-sum-ii|
+|1047. 删除字符串中的所有相邻重复项|4|https://leetcode-cn.com/problems/remove-all-adjacent-duplicates-in-string|
+|402. 移掉K位数字|4|https://leetcode-cn.com/problems/remove-k-digits|
+|169. 多数元素|4|https://leetcode-cn.com/problems/majority-element|
+|152. 乘积最大子数组|4|https://leetcode-cn.com/problems/maximum-product-subarray|
+|50. Pow(x, n)|4|https://leetcode-cn.com/problems/powx-n|
+|4. 寻找两个正序数组的中位数|4|https://leetcode-cn.com/problems/median-of-two-sorted-arrays|
+|456. 132模式|4|https://leetcode-cn.com/problems/132-pattern|
+|239. 滑动窗口最大值|4|https://leetcode-cn.com/problems/sliding-window-maximum|
+|722. 删除注释|4|https://leetcode-cn.com/problems/remove-comments|
+|1095. 山脉数组中查找目标值|4|https://leetcode-cn.com/problems/find-in-mountain-array|
+|72. 编辑距离|4|https://leetcode-cn.com/problems/edit-distance|
+|153. 寻找旋转排序数组中的最小值|4|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array|
+|补充题3. 求区间最小数乘区间和的最大值|4|https://mp.weixin.qq.com/s/UFv7pt_djjZoK_gzUBrRXA|
+|补充题6. 手撕堆排序|4|https://leetcode-cn.com/problems/sort-an-array|
+|227. 基本计算器 II|4|https://leetcode-cn.com/problems/basic-calculator-ii|
+|763. 划分字母区间|4|https://leetcode-cn.com/problems/partition-labels|
+|剑指 Offer 53 - I. 在排序数组中查找数字 I|4|https://leetcode-cn.com/problems/zai-pai-xu-shu-zu-zhong-cha-zhao-shu-zi-lcof|
+|剑指 Offer 61. 扑克牌中的顺子|3|https://leetcode-cn.com/problems/bu-ke-pai-zhong-de-shun-zi-lcof|
+|977. 有序数组的平方|3|https://leetcode-cn.com/problems/squares-of-a-sorted-array|
+|剑指 Offer 09. 用两个栈实现队列|3|https://leetcode-cn.com/problems/yong-liang-ge-zhan-shi-xian-dui-lie-lcof|
+|503. 下一个更大元素 II|3|https://leetcode-cn.com/problems/next-greater-element-ii|
+|283. 移动零|3|https://leetcode-cn.com/problems/move-zeroes|
+|166. 分数到小数|3|https://leetcode-cn.com/problems/fraction-to-recurring-decimal|
+|264. 丑数 II|3|https://leetcode-cn.com/problems/ugly-number-ii|
+|210. 课程表 II|3|https://leetcode-cn.com/problems/course-schedule-ii|
+|394. 字符串解码|3|https://leetcode-cn.com/problems/decode-string|
+|145. 二叉树的后序遍历|3|https://leetcode-cn.com/problems/binary-tree-postorder-traversal|
+|71. 简化路径|3|https://leetcode-cn.com/problems/simplify-path|
+|134. 加油站|3|https://leetcode-cn.com/problems/gas-station|
+|340. 至多包含 K 个不同字符的最长子串|3|https://leetcode-cn.com/problems/longest-substring-with-at-most-k-distinct-characters|
+|86. 分隔链表|3|https://leetcode-cn.com/problems/partition-list|
+|329. 矩阵中的最长递增路径|3|https://leetcode-cn.com/problems/longest-increasing-path-in-a-matrix|
+|144. 二叉树的前序遍历|3|https://leetcode-cn.com/problems/binary-tree-preorder-traversal|
+|10. 正则表达式匹配|3|https://leetcode-cn.com/problems/regular-expression-matching|
+|剑指 Offer 46. 把数字翻译成字符串|3|https://leetcode-cn.com/problems/ba-shu-zi-fan-yi-cheng-zi-fu-chuan-lcof|
+|136. 只出现一次的数字|3|https://leetcode-cn.com/problems/single-number|
+|18. 四数之和|3|https://leetcode-cn.com/problems/4sum|
+|剑指 Offer 27. 二叉树的镜像|3|https://leetcode-cn.com/problems/er-cha-shu-de-jing-xiang-lcof|
+|225. 用队列实现栈|3|https://leetcode-cn.com/problems/implement-stack-using-queues|
+|647. 回文子串|3|https://leetcode-cn.com/problems/palindromic-substrings|
+|34. 在排序数组中查找元素的第一个和最后一个位置|3|https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array|
+|165. 比较版本号|3|https://leetcode-cn.com/problems/compare-version-numbers|
+|887. 鸡蛋掉落|3|https://leetcode-cn.com/problems/super-egg-drop|
+|106. 从中序与后序遍历序列构造二叉树|3|https://leetcode-cn.com/problems/construct-binary-tree-from-inorder-and-postorder-traversal|
+|498. 对角线遍历|3|https://leetcode-cn.com/problems/diagonal-traverse|
+|354. 俄罗斯套娃信封问题|3|https://leetcode-cn.com/problems/russian-doll-envelopes|
+|767. 重构字符串|3|https://leetcode-cn.com/problems/reorganize-string|
+|1254. 统计封闭岛屿的数目|2|https://leetcode-cn.com/problems/number-of-closed-islands|
+|347. 前 K 个高频元素|2|https://leetcode-cn.com/problems/top-k-frequent-elements|
+|剑指 Offer 10- II. 青蛙跳台阶问题|2|https://leetcode-cn.com/problems/qing-wa-tiao-tai-jie-wen-ti-lcof|
+|剑指 Offer 45. 把数组排成最小的数|2|https://leetcode-cn.com/problems/ba-shu-zu-pai-cheng-zui-xiao-de-shu-lcof|
+|99. 恢复二叉搜索树|2|https://leetcode-cn.com/problems/recover-binary-search-tree|
+|125. 验证回文串|2|https://leetcode-cn.com/problems/valid-palindrome|
+|剑指 Offer 21. 调整数组顺序使奇数位于偶数前面|2|https://leetcode-cn.com/problems/diao-zheng-shu-zu-shun-xu-shi-qi-shu-wei-yu-ou-shu-qian-mian-lcof|
+|523. 连续的子数组和|2|https://leetcode-cn.com/problems/continuous-subarray-sum|
+|剑指 Offer 48. 最长不含重复字符的子字符串|2|https://leetcode-cn.com/problems/zui-chang-bu-han-zhong-fu-zi-fu-de-zi-zi-fu-chuan-lcof|
+|剑指 Offer 04. 二维数组中的查找|2|https://leetcode-cn.com/problems/er-wei-shu-zu-zhong-de-cha-zhao-lcof|
+|补充题24. 双栈排序|2|https://mp.weixin.qq.com/s/g_AqwsSEUwlRSevnStPkEA|
+|208. 实现 Trie (前缀树)|2|https://leetcode-cn.com/problems/implement-trie-prefix-tree|
+|剑指 Offer 19. 正则表达式匹配|2|https://leetcode-cn.com/problems/zheng-ze-biao-da-shi-pi-pei-lcof|
+|895. 最大频率栈|2|https://leetcode-cn.com/problems/maximum-frequency-stack|
+|398. 随机数索引|2|https://leetcode-cn.com/problems/random-pick-index|
+|45. 跳跃游戏 II|2|https://leetcode-cn.com/problems/jump-game-ii|
+|416. 分割等和子集|2|https://leetcode-cn.com/problems/partition-equal-subset-sum|
+|668. 乘法表中第k小的数|2|https://leetcode-cn.com/problems/kth-smallest-number-in-multiplication-table|
+|120. 三角形最小路径和|2|https://leetcode-cn.com/problems/triangle|
+|123. 买卖股票的最佳时机 III|2|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iii|
+|154. 寻找旋转排序数组中的最小值 II|2|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array-ii|
+|147. 对链表进行插入排序|2|https://leetcode-cn.com/problems/insertion-sort-list|
+|785. 判断二分图|2|https://leetcode-cn.com/problems/is-graph-bipartite|
+|468. 验证IP地址|2|https://leetcode-cn.com/problems/validate-ip-address|
+|295. 数据流的中位数|2|https://leetcode-cn.com/problems/find-median-from-data-stream|
+|404. 左叶子之和|2|https://leetcode-cn.com/problems/sum-of-left-leaves|
+|84. 柱状图中最大的矩形|2|https://leetcode-cn.com/problems/largest-rectangle-in-histogram|
+|43. 字符串相乘|2|https://leetcode-cn.com/problems/multiply-strings|
+|14. 最长公共前缀|2|https://leetcode-cn.com/problems/longest-common-prefix|
+|974. 和可被 K 整除的子数组|2|https://leetcode-cn.com/problems/subarray-sums-divisible-by-k|
+|922. 按奇偶排序数组 II|2|https://leetcode-cn.com/problems/sort-array-by-parity-ii|
+|75. 颜色分类|2|https://leetcode-cn.com/problems/sort-colors|
+|191. 位1的个数|2|https://leetcode-cn.com/problems/number-of-1-bits|
+|60. 第k个排列|2|https://leetcode-cn.com/problems/permutation-sequence|
+|补充题10. 36进制减法|2|https://mp.weixin.qq.com/s/ub9GpTBjDF55hZld3V2rEA|
+|补充题5. 手撕归并排序|2|https://leetcode-cn.com/problems/sort-an-array|
+|189. 旋转数组|2|https://leetcode-cn.com/problems/rotate-array|
+|74. 搜索二维矩阵|2|https://leetcode-cn.com/problems/search-a-2d-matrix|
+|补充题14. 阿拉伯数字转中文数字|2||
+|剑指 Offer 03. 数组中重复的数字|2|https://leetcode-cn.com/problems/shu-zu-zhong-zhong-fu-de-shu-zi-lcof|
+|253. 会议室 II|2|https://leetcode-cn.com/problems/meeting-rooms-ii|
+|7. 整数反转|2|https://leetcode-cn.com/problems/reverse-integer|
+|47. 全排列 II|2|https://leetcode-cn.com/problems/permutations-ii|
+|85. 最大矩形|2|https://leetcode-cn.com/problems/maximal-rectangle|
+|81. 搜索旋转排序数组 II|2|https://leetcode-cn.com/problems/search-in-rotated-sorted-array-ii|
+|44. 通配符匹配|2|https://leetcode-cn.com/problems/wildcard-matching|
+|703. 数据流中的第K大元素|2|https://leetcode-cn.com/problems/kth-largest-element-in-a-stream|
+|443. 压缩字符串|2|https://leetcode-cn.com/problems/string-compression|
+|381. O(1) 时间插入、删除和获取随机元素 - 允许重复|2|https://leetcode-cn.com/problems/insert-delete-getrandom-o1-duplicates-allowed|
+|补充题20. 立方根|2||
+|395. 至少有K个重复字符的最长子串|2|https://leetcode-cn.com/problems/longest-substring-with-at-least-k-repeating-characters|
+|剑指 Offer 52. 两个链表的第一个公共节点|1|https://leetcode-cn.com/problems/liang-ge-lian-biao-de-di-yi-ge-gong-gong-jie-dian-lcof|
+|111. 二叉树的最小深度|1|https://leetcode-cn.com/problems/minimum-depth-of-binary-tree|
+|994. 腐烂的橘子|1|https://leetcode-cn.com/problems/rotting-oranges|
+|344. 反转字符串|1|https://leetcode-cn.com/problems/reverse-string|
+|1299. 将每个元素替换为右侧最大元素|1|https://leetcode-cn.com/problems/replace-elements-with-greatest-element-on-right-side|
+|67. 二进制求和|1|https://leetcode-cn.com/problems/add-binary|
+|515. 在每个树行中找最大值|1|https://leetcode-cn.com/problems/find-largest-value-in-each-tree-row|
+|1147. 段式回文|1|https://leetcode-cn.com/problems/longest-chunked-palindrome-decomposition|
+|876. 链表的中间结点|1|https://leetcode-cn.com/problems/middle-of-the-linked-list|
+|100. 相同的树|1|https://leetcode-cn.com/problems/same-tree|
+|842. 将数组拆分成斐波那契序列|1|https://leetcode-cn.com/problems/split-array-into-fibonacci-sequence|
+|剑指 Offer 33. 二叉搜索树的后序遍历序列|1|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-hou-xu-bian-li-xu-lie-lcof|
+|剑指 Offer 38. 字符串的排列|1|https://leetcode-cn.com/problems/zi-fu-chuan-de-pai-lie-lcof|
+|剑指 Offer 24. 反转链表|1|https://leetcode-cn.com/problems/fan-zhuan-lian-biao-lcof|
+|剑指 Offer 53 - II. 0～n-1中缺失的数字|1|https://leetcode-cn.com/problems/que-shi-de-shu-zi-lcof|
+|701. 二叉搜索树中的插入操作|1|https://leetcode-cn.com/problems/insert-into-a-binary-search-tree|
+|349. 两个数组的交集|1|https://leetcode-cn.com/problems/intersection-of-two-arrays|
+|1156. 单字符重复子串的最大长度|1|https://leetcode-cn.com/problems/swap-for-longest-repeated-character-substring|
+|449. 序列化和反序列化二叉搜索树|1|https://leetcode-cn.com/problems/serialize-and-deserialize-bst|
+|面试题 08.12. 八皇后|1|https://leetcode-cn.com/problems/eight-queens-lcci|
+|37. 解数独|1|https://leetcode-cn.com/problems/sudoku-solver|
+|410. 分割数组的最大值|1|https://leetcode-cn.com/problems/split-array-largest-sum|
+|694. 不同岛屿的数量|1|https://leetcode-cn.com/problems/number-of-distinct-islands|
+|剑指 Offer 18. 删除链表的节点|1|https://leetcode-cn.com/problems/shan-chu-lian-biao-de-jie-dian-lcof|
+|912. 排序数组|1|https://leetcode-cn.com/problems/sort-an-array|
+|173. 二叉搜索树迭代器|1|https://leetcode-cn.com/problems/binary-search-tree-iterator|
+|1139. 最大的以 1 为边界的正方形|1|https://leetcode-cn.com/problems/largest-1-bordered-square|
+|剑指 Offer 25. 合并两个排序的链表|1|https://leetcode-cn.com/problems/he-bing-liang-ge-pai-xu-de-lian-biao-lcof|
+|325. 和等于 k 的最长子数组长度|1|https://leetcode-cn.com/problems/maximum-size-subarray-sum-equals-k|
+|1363. 形成三的最大倍数|1|https://leetcode-cn.com/problems/largest-multiple-of-three|
+|951. 翻转等价二叉树|1|https://leetcode-cn.com/problems/flip-equivalent-binary-trees|
+|107. 二叉树的层次遍历 II|1|https://leetcode-cn.com/problems/binary-tree-level-order-traversal-ii|
+|637. 二叉树的层平均值|1|https://leetcode-cn.com/problems/average-of-levels-in-binary-tree|
+|277. 搜寻名人|1|https://leetcode-cn.com/problems/find-the-celebrity|
+|321. 拼接最大数|1|https://leetcode-cn.com/problems/create-maximum-number|
+|525. 连续数组|1|https://leetcode-cn.com/problems/contiguous-array|
+|剑指 Offer 58 - II. 左旋转字符串|1|https://leetcode-cn.com/problems/zuo-xuan-zhuan-zi-fu-chuan-lcof|
+|97. 交错字符串|1|https://leetcode-cn.com/problems/interleaving-string|
+|204. 计数质数|1|https://leetcode-cn.com/problems/count-primes|
+|202. 快乐数|1|https://leetcode-cn.com/problems/happy-number|
+|1669. 合并两个链表|1|https://leetcode-cn.com/problems/merge-in-between-linked-lists|
+|807. 保持城市天际线|1|https://leetcode-cn.com/problems/max-increase-to-keep-city-skyline|
+|889. 根据前序和后序遍历构造二叉树|1|https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-postorder-traversal|
+|剑指 Offer 05. 替换空格|1|https://leetcode-cn.com/problems/ti-huan-kong-ge-lcof|
+|279. 完全平方数|1|https://leetcode-cn.com/problems/perfect-squares|
+|17. 电话号码的字母组合|1|https://leetcode-cn.com/problems/letter-combinations-of-a-phone-number|
+|459. 重复的子字符串|1|https://leetcode-cn.com/problems/repeated-substring-pattern|
+|剑指 Offer 59 - II. 队列的最大值|1|https://leetcode-cn.com/problems/dui-lie-de-zui-da-zhi-lcof|
+|260. 只出现一次的数字 III|1|https://leetcode-cn.com/problems/single-number-iii|
+|1438. 绝对差不超过限制的最长连续子数组|1|https://leetcode-cn.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit|
+|剑指 Offer 62. 圆圈中最后剩下的数字|1|https://leetcode-cn.com/problems/yuan-quan-zhong-zui-hou-sheng-xia-de-shu-zi-lcof|
+|836. 矩形重叠|1|https://leetcode-cn.com/problems/rectangle-overlap|
+|1172. 餐盘栈|1|https://leetcode-cn.com/problems/dinner-plate-stacks|
+|547. 省份数量（原朋友圈）|1|https://leetcode-cn.com/problems/number-of-provinces|
+|面试题 17.24. 最大子矩阵|1|https://leetcode-cn.com/problems/max-submatrix-lcci|
+|1302. 层数最深叶子节点的和|1|https://leetcode-cn.com/problems/deepest-leaves-sum|
+|448. 找到所有数组中消失的数字|1|https://leetcode-cn.com/problems/find-all-numbers-disappeared-in-an-array|
+|127. 单词接龙|1|https://leetcode-cn.com/problems/word-ladder|
+|剑指 Offer 55 - II. 平衡二叉树|1|https://leetcode-cn.com/problems/ping-heng-er-cha-shu-lcof|
+|剑指 Offer 55 - I. 二叉树的深度|1|https://leetcode-cn.com/problems/er-cha-shu-de-shen-du-lcof|
+|面试题 08.05. 递归乘法|1|https://leetcode-cn.com/problems/recursive-mulitply-lcci|
+|179. 最大数|1|https://leetcode-cn.com/problems/largest-number|
+|1107. 每日新用户统计|1|https://leetcode-cn.com/problems/new-users-daily-count|
+|剑指 Offer 10- I. 斐波那契数列|1|https://leetcode-cn.com/problems/fei-bo-na-qi-shu-lie-lcof|
+|63. 不同路径 II|1|https://leetcode-cn.com/problems/unique-paths-ii|
+|397. 整数替换|1|https://leetcode-cn.com/problems/integer-replacement|
+|564. 寻找最近的回文数|1|https://leetcode-cn.com/problems/find-the-closest-palindrome|
+|765. 情侣牵手|1|https://leetcode-cn.com/problems/couples-holding-hands|
+|80. 删除排序数组中的重复项 II|1|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array-ii|
+|77. 组合|1|https://leetcode-cn.com/problems/combinations|
+|378. 有序矩阵中第K小的元素|1|https://leetcode-cn.com/problems/kth-smallest-element-in-a-sorted-matrix|
+|384. 打乱数组|1|https://leetcode-cn.com/problems/shuffle-an-array|
+|剑指 Offer 56 - I. 数组中数字出现的次数|1|https://leetcode-cn.com/problems/shu-zu-zhong-shu-zi-chu-xian-de-ci-shu-lcof|
+|28. 实现 strStr()|1|https://leetcode-cn.com/problems/implement-strstr|
+|剑指 Offer 32 - III. 从上到下打印二叉树 III|1|https://leetcode-cn.com/problems/cong-shang-dao-xia-da-yin-er-cha-shu-iii-lcof|
+|207. 课程表|1|https://leetcode-cn.com/problems/course-schedule|
+|386. 字典序排数|1|https://leetcode-cn.com/problems/lexicographical-numbers|
+|面试题 03.03. 堆盘子|1|https://leetcode-cn.com/problems/stack-of-plates-lcci|
+|331. 验证二叉树的前序序列化|1|https://leetcode-cn.com/problems/verify-preorder-serialization-of-a-binary-tree|
+|剑指 Offer 28. 对称的二叉树|1|https://leetcode-cn.com/problems/dui-cheng-de-er-cha-shu-lcof|
+|剑指 Offer 68 - II. 二叉树的最近公共祖先|1|https://leetcode-cn.com/problems/er-cha-shu-de-zui-jin-gong-gong-zu-xian-lcof|
+|848. 字母移位|1|https://leetcode-cn.com/problems/shifting-letters|
+|6. Z 字形变换|1|https://leetcode-cn.com/problems/zigzag-conversion|
+|990. 等式方程的可满足性|1|https://leetcode-cn.com/problems/satisfiability-of-equality-equations|
+|567. 字符串的排列|1|https://leetcode-cn.com/problems/permutation-in-string|
+|496. 下一个更大元素 I|1|https://leetcode-cn.com/problems/next-greater-element-i|
+|967. 连续差相同的数字|1|https://leetcode-cn.com/problems/numbers-with-same-consecutive-differences|
+|1405. 最长快乐字符串|1|https://leetcode-cn.com/problems/longest-happy-string|
+|1353. 最多可以参加的会议数目|1|https://leetcode-cn.com/problems/maximum-number-of-events-that-can-be-attended|
+|1574. 删除最短的子数组使剩余数组有序|1|https://leetcode-cn.com/problems/shortest-subarray-to-be-removed-to-make-array-sorted|
+|949. 给定数字能组成的最大时间|1|https://leetcode-cn.com/problems/largest-time-for-given-digits|
+|剑指 Offer 31. 栈的压入、弹出序列|1|https://leetcode-cn.com/problems/zhan-de-ya-ru-dan-chu-xu-lie-lcof|
+|213. 打家劫舍 II|1|https://leetcode-cn.com/problems/house-robber-ii|
+|剑指 Offer 40. 最小的k个数|1|https://leetcode-cn.com/problems/zui-xiao-de-kge-shu-lcof|
+|1475. 商品折扣后的最终价格|1|https://leetcode-cn.com/problems/final-prices-with-a-special-discount-in-a-shop|
+|剑指 Offer 43. 1～n整数中1出现的次数|1|https://leetcode-cn.com/problems/1nzheng-shu-zhong-1chu-xian-de-ci-shu-lcof|
+|706. 设计哈希映射|1|https://leetcode-cn.com/problems/design-hashmap|
+|252. 会议室|1|https://leetcode-cn.com/problems/meeting-rooms|
+|剑指 Offer 63. 股票的最大利润|1|https://leetcode-cn.com/problems/gu-piao-de-zui-da-li-run-lcof|
+|680. 验证回文字符串 Ⅱ|1|https://leetcode-cn.com/problems/valid-palindrome-ii|
+|341. 扁平化嵌套列表迭代器|1|https://leetcode-cn.com/problems/flatten-nested-list-iterator|
+|140. 单词拆分 II|1|https://leetcode-cn.com/problems/word-break-ii|
+|716. 最大栈|1|https://leetcode-cn.com/problems/max-stack|
+|214. 最短回文串|1|https://leetcode-cn.com/problems/shortest-palindrome|
+|633. 平方数之和|1|https://leetcode-cn.com/problems/sum-of-square-numbers|
+|补充题17. 两个有序数组第k小的数|1||
+|589. N叉树的前序遍历|1|https://leetcode-cn.com/problems/n-ary-tree-preorder-traversal|
+|1675. 数组的最小偏移量|1|https://leetcode-cn.com/problems/minimize-deviation-in-array|
+|485. 最大连续1的个数|1|https://leetcode-cn.com/problems/max-consecutive-ones|
+|补充题8. 计算数组的小和|1|https://mp.weixin.qq.com/s/rMsbcUf9ZPhvfRoyZGW6HA|
+|剑指 Offer 34. 二叉树中和为某一值的路径|1|https://leetcode-cn.com/problems/er-cha-shu-zhong-he-wei-mou-yi-zhi-de-lu-jing-lcof|
+|剑指 Offer 17. 打印从1到最大的n位数|1|https://leetcode-cn.com/problems/da-yin-cong-1dao-zui-da-de-nwei-shu-lcof|
+|861. 翻转矩阵后的得分|1|https://leetcode-cn.com/problems/score-after-flipping-matrix|
+|168. Excel表列名称|1|https://leetcode-cn.com/problems/excel-sheet-column-title|
+|剑指 Offer 14- I. 剪绳子|1|https://leetcode-cn.com/problems/jian-sheng-zi-lcof|
+|96. 不同的二叉搜索树|1|https://leetcode-cn.com/problems/unique-binary-search-trees|
+|13. 罗马数字转整数|1|https://leetcode-cn.com/problems/roman-to-integer|
+|1190. 反转每对括号间的子串|1|https://leetcode-cn.com/problems/reverse-substrings-between-each-pair-of-parentheses|
+|16. 最接近的三数之和|1|https://leetcode-cn.com/problems/3sum-closest|
+|216. 组合总和 III|1|https://leetcode-cn.com/problems/combination-sum-iii|
+|剑指 Offer 32 - II. 从上到下打印二叉树 II|1|https://leetcode-cn.com/problems/cong-shang-dao-xia-da-yin-er-cha-shu-ii-lcof|
+|736. Lisp 语法解析|1|https://leetcode-cn.com/problems/parse-lisp-expression|
+|137. 只出现一次的数字 II|1|https://leetcode-cn.com/problems/single-number-ii|
\ No newline at end of file
diff --git a/bytedance/client.md b/bytedance/client.md
index fec170c..3678579 100644
--- a/bytedance/client.md
+++ b/bytedance/client.md
@@ -1,42 +1,189 @@
-如果只想看本次更新的数据(07.07~07.18)，请[点我](https://github.com/afatcoder/LeetcodeTop/blob/master/bytedance//latest/client.md)
+# 客户端
+我开发的[CodeTop题库](https://codetop.cc)可以按照部门、难度筛选，比markdown更方便查询高频题
-| 公司 | 岗位 | 题目 | 次数 |
-|------|-----|------------------------|----|
-| 字节跳动 | 客户端 | 53\. 最大子序和 | 7 |
-| 字节跳动 | 客户端 | 215\. 数组中的第K个最大元素 | 6 |
-| 字节跳动 | 客户端 | 236\. 二叉树的最近公共祖先 | 6 |
-| 字节跳动 | 客户端 | 206\. 反转链表 | 6 |
-| 字节跳动 | 客户端 | 21\. 合并两个有序链表 | 6 |
-| 字节跳动 | 客户端 | 25\. K 个一组翻转链表 | 5 |
-| 字节跳动 | 客户端 | 剑指 Offer 09\. 用两个栈实现队列 | 5 |
-| 字节跳动 | 客户端 | 146\. LRU缓存机制 | 5 |
-| 字节跳动 | 客户端 | 144\. 二叉树的前序遍历 | 4 |
-| 字节跳动 | 客户端 | 344\. 反转字符串 | 4 |
-| 字节跳动 | 客户端 | 543\. 二叉树的直径 | 4 |
-| 字节跳动 | 客户端 | 160\. 相交链表 | 4 |
-| 字节跳动 | 客户端 | 142\. 环形链表 II | 3 |
-| 字节跳动 | 客户端 | 104\. 二叉树的最大深度 | 3 |
-| 字节跳动 | 客户端 | 394\. 字符串解码 | 3 |
-| 字节跳动 | 客户端 | 145\. 二叉树的后序遍历 | 3 |
-| 字节跳动 | 客户端 | 102\. 二叉树的层序遍历 | 3 |
-| 字节跳动 | 客户端 | 3\. 无重复字符的最长子串 | 3 |
-| 字节跳动 | 客户端 | 151\. 翻转字符串里的单词 | 3 |
-| 字节跳动 | 客户端 | 958\. 二叉树的完全性检验 | 3 |
-| 字节跳动 | 客户端 | 1\. 两数之和 | 3 |
-| 字节跳动 | 客户端 | 94\. 二叉树的中序遍历 | 2 |
-| 字节跳动 | 客户端 | 240\. 搜索二维矩阵 II | 2 |
-| 字节跳动 | 客户端 | 33\. 搜索旋转排序数组 | 2 |
-| 字节跳动 | 客户端 | 121\.买卖股票 | 2 |
-| 字节跳动 | 客户端 | 190\. 颠倒二进制位 | 2 |
-| 字节跳动 | 客户端 | 199\. 二叉树的右视图 | 2 |
-| 字节跳动 | 客户端 | 460\. LFU缓存 | 2 |
-| 字节跳动 | 客户端 | 41\. 缺失的第一个正数 | 2 |
-| 字节跳动 | 客户端 | 103\. 二叉树的锯齿形层次遍历 | 2 |
-| 字节跳动 | 客户端 | 300\. 最长上升子序列 | 2 |
-| 字节跳动 | 客户端 | 70\. 爬楼梯 | 2 |
-| 字节跳动 | 客户端 | 54\. 螺旋矩阵 | 2 |
-| 字节跳动 | 客户端 | 62\. 不同路径 | 2 |
-| 字节跳动 | 客户端 | 189\. 旋转数组 | 2 |
-| 字节跳动 | 客户端 | 48\. 旋转图像 | 2 |
-| 字节跳动 | 客户端 | 剑指 Offer 27\. 二叉树的镜像 | 2 |
-| 字节跳动 | 客户端 | 113\. 路径总和 II | 2 |
+|题目|出现次数|链接|
+|-|-|-|
+|206. 反转链表|21|https://leetcode-cn.com/problems/reverse-linked-list|
+|25. K 个一组翻转链表|18|https://leetcode-cn.com/problems/reverse-nodes-in-k-group|
+|160. 相交链表|18|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
+|215. 数组中的第K个最大元素|17|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|53. 最大子序和|17|https://leetcode-cn.com/problems/maximum-subarray|
+|146. LRU缓存机制|16|https://leetcode-cn.com/problems/lru-cache|
+|15. 三数之和|13|https://leetcode-cn.com/problems/3sum|
+|1. 两数之和|13|https://leetcode-cn.com/problems/two-sum|
+|3. 无重复字符的最长子串|12|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|121. 买卖股票的最佳时机|10|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|21. 合并两个有序链表|10|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|113. 路径总和 II|10|https://leetcode-cn.com/problems/path-sum-ii|
+|102. 二叉树的层序遍历|10|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|103. 二叉树的锯齿形层次遍历|10|https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal|
+|236. 二叉树的最近公共祖先|9|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree|
+|958. 二叉树的完全性检验|9|https://leetcode-cn.com/problems/check-completeness-of-a-binary-tree|
+|105. 从前序与中序遍历序列构造二叉树|9|https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal|
+|41. 缺失的第一个正数|8|https://leetcode-cn.com/problems/first-missing-positive|
+|199. 二叉树的右视图|8|https://leetcode-cn.com/problems/binary-tree-right-side-view|
+|54. 螺旋矩阵|8|https://leetcode-cn.com/problems/spiral-matrix|
+|101. 对称二叉树|8|https://leetcode-cn.com/problems/symmetric-tree|
+|415. 字符串相加|8|https://leetcode-cn.com/problems/add-strings|
+|232. 用栈实现队列|7|https://leetcode-cn.com/problems/implement-queue-using-stacks|
+|112. 路径总和|7|https://leetcode-cn.com/problems/path-sum|
+|剑指 Offer 09. 用两个栈实现队列|7|https://leetcode-cn.com/problems/yong-liang-ge-zhan-shi-xian-dui-lie-lcof|
+|56. 合并区间|7|https://leetcode-cn.com/problems/merge-intervals|
+|42. 接雨水|7|https://leetcode-cn.com/problems/trapping-rain-water|
+|34. 在排序数组中查找元素的第一个和最后一个位置|7|https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array|
+|19. 删除链表的倒数第N个节点|7|https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list|
+|151. 翻转字符串里的单词|6|https://leetcode-cn.com/problems/reverse-words-in-a-string|
+|141. 环形链表|6|https://leetcode-cn.com/problems/linked-list-cycle|
+|142. 环形链表 II|6|https://leetcode-cn.com/problems/linked-list-cycle-ii|
+|94. 二叉树的中序遍历|6|https://leetcode-cn.com/problems/binary-tree-inorder-traversal|
+|144. 二叉树的前序遍历|6|https://leetcode-cn.com/problems/binary-tree-preorder-traversal|
+|543. 二叉树的直径|6|https://leetcode-cn.com/problems/diameter-of-binary-tree|
+|104. 二叉树的最大深度|6|https://leetcode-cn.com/problems/maximum-depth-of-binary-tree|
+|2. 两数相加|6|https://leetcode-cn.com/problems/add-two-numbers|
+|4. 寻找两个正序数组的中位数|6|https://leetcode-cn.com/problems/median-of-two-sorted-arrays|
+|82. 删除排序链表中的重复元素 II|6|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list-ii|
+|394. 字符串解码|5|https://leetcode-cn.com/problems/decode-string|
+|200. 岛屿数量|5|https://leetcode-cn.com/problems/number-of-islands|
+|165. 比较版本号|5|https://leetcode-cn.com/problems/compare-version-numbers|
+|补充题9. 36进制加法|5|https://mp.weixin.qq.com/s/XcKQwnwCh5nZsz-DLHJwzQ|
+|344. 反转字符串|4|https://leetcode-cn.com/problems/reverse-string|
+|88. 合并两个有序数组|4|https://leetcode-cn.com/problems/merge-sorted-array|
+|136. 只出现一次的数字|4|https://leetcode-cn.com/problems/single-number|
+|226. 翻转二叉树|4|https://leetcode-cn.com/problems/invert-binary-tree|
+|剑指 Offer 36. 二叉搜索树与双向链表|4|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-yu-shuang-xiang-lian-biao-lcof|
+|240. 搜索二维矩阵 II|4|https://leetcode-cn.com/problems/search-a-2d-matrix-ii|
+|剑指 Offer 21. 调整数组顺序使奇数位于偶数前面|4|https://leetcode-cn.com/problems/diao-zheng-shu-zu-shun-xu-shi-qi-shu-wei-yu-ou-shu-qian-mian-lcof|
+|460. LFU缓存|4|https://leetcode-cn.com/problems/lfu-cache|
+|69. x 的平方根|4|https://leetcode-cn.com/problems/sqrtx|
+|322. 零钱兑换|4|https://leetcode-cn.com/problems/coin-change|
+|46. 全排列|4|https://leetcode-cn.com/problems/permutations|
+|189. 旋转数组|4|https://leetcode-cn.com/problems/rotate-array|
+|剑指 Offer 27. 二叉树的镜像|4|https://leetcode-cn.com/problems/er-cha-shu-de-jing-xiang-lcof|
+|225. 用队列实现栈|4|https://leetcode-cn.com/problems/implement-stack-using-queues|
+|59. 螺旋矩阵 II|4|https://leetcode-cn.com/problems/spiral-matrix-ii|
+|剑指 Offer 22. 链表中倒数第k个节点|4|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
+|补充题4. 手撕快速排序|4|https://leetcode-cn.com/problems/sort-an-array|
+|剑指 Offer 33. 二叉搜索树的后序遍历序列|4|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-hou-xu-bian-li-xu-lie-lcof|
+|518. 零钱兑换 II|3|https://leetcode-cn.com/problems/coin-change-2|
+|300. 最长上升子序列|3|https://leetcode-cn.com/problems/longest-increasing-subsequence|
+|145. 二叉树的后序遍历|3|https://leetcode-cn.com/problems/binary-tree-postorder-traversal|
+|33. 搜索旋转排序数组|3|https://leetcode-cn.com/problems/search-in-rotated-sorted-array|
+|162. 寻找峰值|3|https://leetcode-cn.com/problems/find-peak-element|
+|124. 二叉树中的最大路径和|3|https://leetcode-cn.com/problems/binary-tree-maximum-path-sum|
+|70. 爬楼梯|3|https://leetcode-cn.com/problems/climbing-stairs|
+|61. 旋转链表|3|https://leetcode-cn.com/problems/rotate-list|
+|110. 平衡二叉树|3|https://leetcode-cn.com/problems/balanced-binary-tree|
+|16. 最接近的三数之和|3|https://leetcode-cn.com/problems/3sum-closest|
+|20. 有效的括号|3|https://leetcode-cn.com/problems/valid-parentheses|
+|5. 最长回文子串|3|https://leetcode-cn.com/problems/longest-palindromic-substring|
+|443. 压缩字符串|3|https://leetcode-cn.com/problems/string-compression|
+|1143. 最长公共子序列|3|https://leetcode-cn.com/problems/longest-common-subsequence|
+|75. 颜色分类|3|https://leetcode-cn.com/problems/sort-colors|
+|24. 两两交换链表中的节点|3|https://leetcode-cn.com/problems/swap-nodes-in-pairs|
+|315. 计算右侧小于当前元素的个数|3|https://leetcode-cn.com/problems/count-of-smaller-numbers-after-self|
+|129. 求根到叶子节点数字之和|3|https://leetcode-cn.com/problems/sum-root-to-leaf-numbers|
+|76. 最小覆盖子串|3|https://leetcode-cn.com/problems/minimum-window-substring|
+|补充题1. 排序奇升偶降链表|3|https://mp.weixin.qq.com/s/0WVa2wIAeG0nYnVndZiEXQ|
+|剑指 Offer 38. 字符串的排列|3|https://leetcode-cn.com/problems/zi-fu-chuan-de-pai-lie-lcof|
+|114. 二叉树展开为链表|3|https://leetcode-cn.com/problems/flatten-binary-tree-to-linked-list|
+|剑指 Offer 52. 两个链表的第一个公共节点|2|https://leetcode-cn.com/problems/liang-ge-lian-biao-de-di-yi-ge-gong-gong-jie-dian-lcof|
+|剑指 Offer 45. 把数组排成最小的数|2|https://leetcode-cn.com/problems/ba-shu-zu-pai-cheng-zui-xiao-de-shu-lcof|
+|234. 回文链表|2|https://leetcode-cn.com/problems/palindrome-linked-list|
+|283. 移动零|2|https://leetcode-cn.com/problems/move-zeroes|
+|190. 颠倒二进制位|2|https://leetcode-cn.com/problems/reverse-bits|
+|122. 买卖股票的最佳时机 II|2|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-ii|
+|7. 整数反转|2|https://leetcode-cn.com/problems/reverse-integer|
+|662. 二叉树最大宽度|2|https://leetcode-cn.com/problems/maximum-width-of-binary-tree|
+|62. 不同路径|2|https://leetcode-cn.com/problems/unique-paths|
+|191. 位1的个数|2|https://leetcode-cn.com/problems/number-of-1-bits|
+|48. 旋转图像|2|https://leetcode-cn.com/problems/rotate-image|
+|739. 每日温度|2|https://leetcode-cn.com/problems/daily-temperatures|
+|92. 反转链表 II|2|https://leetcode-cn.com/problems/reverse-linked-list-ii|
+|剑指 Offer 62. 圆圈中最后剩下的数字|2|https://leetcode-cn.com/problems/yuan-quan-zhong-zui-hou-sheng-xia-de-shu-zi-lcof|
+|164. 最大间距|2|https://leetcode-cn.com/problems/maximum-gap|
+|71. 简化路径|2|https://leetcode-cn.com/problems/simplify-path|
+|98. 验证二叉搜索树|2|https://leetcode-cn.com/problems/validate-binary-search-tree|
+|55. 跳跃游戏|2|https://leetcode-cn.com/problems/jump-game|
+|17. 电话号码的字母组合|2|https://leetcode-cn.com/problems/letter-combinations-of-a-phone-number|
+|72. 编辑距离|2|https://leetcode-cn.com/problems/edit-distance|
+|347. 前 K 个高频元素|2|https://leetcode-cn.com/problems/top-k-frequent-elements|
+|977. 有序数组的平方|2|https://leetcode-cn.com/problems/squares-of-a-sorted-array|
+|155. 最小栈|2|https://leetcode-cn.com/problems/min-stack|
+|32. 最长有效括号|2|https://leetcode-cn.com/problems/longest-valid-parentheses|
+|438. 找到字符串中所有字母异位词|2|https://leetcode-cn.com/problems/find-all-anagrams-in-a-string|
+|93. 复原IP地址|2|https://leetcode-cn.com/problems/restore-ip-addresses|
+|260. 只出现一次的数字 III|2|https://leetcode-cn.com/problems/single-number-iii|
+|334. 递增的三元子序列|2|https://leetcode-cn.com/problems/increasing-triplet-subsequence|
+|8. 字符串转换整数 (atoi)|2|https://leetcode-cn.com/problems/string-to-integer-atoi|
+|39. 组合总和|2|https://leetcode-cn.com/problems/combination-sum|
+|224. 基本计算器|2|https://leetcode-cn.com/problems/basic-calculator|
+|680. 验证回文字符串 Ⅱ|2|https://leetcode-cn.com/problems/valid-palindrome-ii|
+|470. 用 Rand7() 实现 Rand10()|2|https://leetcode-cn.com/problems/implement-rand10-using-rand7|
+|530. 二叉搜索树的最小绝对差|2|https://leetcode-cn.com/problems/minimum-absolute-difference-in-bst|
+|31. 下一个排列|2|https://leetcode-cn.com/problems/next-permutation|
+|143. 重排链表|2|https://leetcode-cn.com/problems/reorder-list|
+|128. 最长连续序列|1|https://leetcode-cn.com/problems/longest-consecutive-sequence|
+|480. 滑动窗口中位数|1|https://leetcode-cn.com/problems/sliding-window-median|
+|23. 合并K个排序链表|1|https://leetcode-cn.com/problems/merge-k-sorted-lists|
+|86. 分隔链表|1|https://leetcode-cn.com/problems/partition-list|
+|140. 单词拆分 II|1|https://leetcode-cn.com/problems/word-break-ii|
+|剑指 Offer 07. 重建二叉树|1|https://leetcode-cn.com/problems/zhong-jian-er-cha-shu-lcof|
+|257. 二叉树的所有路径|1|https://leetcode-cn.com/problems/binary-tree-paths|
+|剑指 Offer 32 - III. 从上到下打印二叉树 III|1|https://leetcode-cn.com/problems/cong-shang-dao-xia-da-yin-er-cha-shu-iii-lcof|
+|209. 长度最小的子数组|1|https://leetcode-cn.com/problems/minimum-size-subarray-sum|
+|328. 奇偶链表|1|https://leetcode-cn.com/problems/odd-even-linked-list|
+|557. 反转字符串中的单词 III|1|https://leetcode-cn.com/problems/reverse-words-in-a-string-iii|
+|445. 两数相加 II|1|https://leetcode-cn.com/problems/add-two-numbers-ii|
+|1233. 删除子文件夹|1|https://leetcode-cn.com/problems/remove-sub-folders-from-the-filesystem|
+|701. 二叉搜索树中的插入操作|1|https://leetcode-cn.com/problems/insert-into-a-binary-search-tree|
+|148. 排序链表|1|https://leetcode-cn.com/problems/sort-list|
+|138. 复制带随机指针的链表|1|https://leetcode-cn.com/problems/copy-list-with-random-pointer|
+|503. 下一个更大元素 II|1|https://leetcode-cn.com/problems/next-greater-element-ii|
+|329. 矩阵中的最长递增路径|1|https://leetcode-cn.com/problems/longest-increasing-path-in-a-matrix|
+|1047. 删除字符串中的所有相邻重复项|1|https://leetcode-cn.com/problems/remove-all-adjacent-duplicates-in-string|
+|670. 最大交换|1|https://leetcode-cn.com/problems/maximum-swap|
+|863. 二叉树中所有距离为 K 的结点|1|https://leetcode-cn.com/problems/all-nodes-distance-k-in-binary-tree|
+|238. 除自身以外数组的乘积|1|https://leetcode-cn.com/problems/product-of-array-except-self|
+|44. 通配符匹配|1|https://leetcode-cn.com/problems/wildcard-matching|
+|79. 单词搜索|1|https://leetcode-cn.com/problems/word-search|
+|767. 重构字符串|1|https://leetcode-cn.com/problems/reorganize-string|
+|242. 有效的字母异位词|1|https://leetcode-cn.com/problems/valid-anagram|
+|剑指 Offer 56 - II. 数组中数字出现的次数 II|1|https://leetcode-cn.com/problems/shu-zu-zhong-shu-zi-chu-xian-de-ci-shu-ii-lcof|
+|97. 交错字符串|1|https://leetcode-cn.com/problems/interleaving-string|
+|77. 组合|1|https://leetcode-cn.com/problems/combinations|
+|230. 二叉搜索树中第K小的元素|1|https://leetcode-cn.com/problems/kth-smallest-element-in-a-bst|
+|179. 最大数|1|https://leetcode-cn.com/problems/largest-number|
+|120. 三角形最小路径和|1|https://leetcode-cn.com/problems/triangle|
+|26. 删除排序数组中的重复项|1|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array|
+|80. 删除排序数组中的重复项 II|1|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array-ii|
+|402. 移掉K位数字|1|https://leetcode-cn.com/problems/remove-k-digits|
+|剑指 Offer 48. 最长不含重复字符的子字符串|1|https://leetcode-cn.com/problems/zui-chang-bu-han-zhong-fu-zi-fu-de-zi-zi-fu-chuan-lcof|
+|83. 删除排序链表中的重复元素|1|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list|
+|剑指 Offer 17. 打印从1到最大的n位数|1|https://leetcode-cn.com/problems/da-yin-cong-1dao-zui-da-de-nwei-shu-lcof|
+|125. 验证回文串|1|https://leetcode-cn.com/problems/valid-palindrome|
+|139. 单词拆分|1|https://leetcode-cn.com/problems/word-break|
+|239. 滑动窗口最大值|1|https://leetcode-cn.com/problems/sliding-window-maximum|
+|221. 最大正方形|1|https://leetcode-cn.com/problems/maximal-square|
+|617. 合并二叉树|1|https://leetcode-cn.com/problems/merge-two-binary-trees|
+|556. 下一个更大元素 III|1|https://leetcode-cn.com/problems/next-greater-element-iii|
+|11. 盛最多水的容器|1|https://leetcode-cn.com/problems/container-with-most-water|
+|927. 三等分|1|https://leetcode-cn.com/problems/three-equal-parts|
+|剑指 Offer 03. 数组中重复的数字|1|https://leetcode-cn.com/problems/shu-zu-zhong-zhong-fu-de-shu-zi-lcof|
+|564. 寻找最近的回文数|1|https://leetcode-cn.com/problems/find-the-closest-palindrome|
+|498. 对角线遍历|1|https://leetcode-cn.com/problems/diagonal-traverse|
+|297. 二叉树的序列化与反序列化|1|https://leetcode-cn.com/problems/serialize-and-deserialize-binary-tree|
+|171. Excel表列序号|1|https://leetcode-cn.com/problems/excel-sheet-column-number|
+|976. 三角形的最大周长|1|https://leetcode-cn.com/problems/largest-perimeter-triangle|
+|补充题23. 检测循环依赖|1|https://mp.weixin.qq.com/s/pCRscwKqQdYYN7M1Sia7xA|
+|351. 安卓系统手势解锁|1|https://leetcode-cn.com/problems/android-unlock-patterns|
+|面试题 02.01. 移除重复节点|1|https://leetcode-cn.com/problems/remove-duplicate-node-lcci|
+|10. 正则表达式匹配|1|https://leetcode-cn.com/problems/regular-expression-matching|
+|剑指 Offer 51. 数组中的逆序对|1|https://leetcode-cn.com/problems/shu-zu-zhong-de-ni-xu-dui-lcof|
+|999. 可以被一步捕获的棋子数|1|https://leetcode-cn.com/problems/available-captures-for-rook|
+|100. 相同的树|1|https://leetcode-cn.com/problems/same-tree|
+|718. 最长重复子数组|1|https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray|
+|1328. 破坏回文串|1|https://leetcode-cn.com/problems/break-a-palindrome|
+|12. 整数转罗马数字|1|https://leetcode-cn.com/problems/integer-to-roman|
+|611. 有效三角形的个数|1|https://leetcode-cn.com/problems/valid-triangle-number|
+|22. 括号生成|1|https://leetcode-cn.com/problems/generate-parentheses|
+|219. 存在重复元素 II|1|https://leetcode-cn.com/problems/contains-duplicate-ii|
\ No newline at end of file
diff --git a/bytedance/data.md b/bytedance/data.md
new file mode 100644
index 0000000..ab1e9a7
--- /dev/null
+++ b/bytedance/data.md
@@ -0,0 +1,55 @@
+# 数据研发
+我开发的[CodeTop题库](https://codetop.cc)可以按照部门、难度筛选，比markdown更方便查询高频题
+
+|题目|出现次数|链接|
+|-|-|-|
+|232. 用栈实现队列|4|https://leetcode-cn.com/problems/implement-queue-using-stacks|
+|146. LRU缓存机制|3|https://leetcode-cn.com/problems/lru-cache|
+|121. 买卖股票的最佳时机|3|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|101. 对称二叉树|3|https://leetcode-cn.com/problems/symmetric-tree|
+|25. K 个一组翻转链表|3|https://leetcode-cn.com/problems/reverse-nodes-in-k-group|
+|98. 验证二叉搜索树|2|https://leetcode-cn.com/problems/validate-binary-search-tree|
+|103. 二叉树的锯齿形层次遍历|2|https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal|
+|141. 环形链表|2|https://leetcode-cn.com/problems/linked-list-cycle|
+|53. 最大子序和|2|https://leetcode-cn.com/problems/maximum-subarray|
+|64. 最小路径和|2|https://leetcode-cn.com/problems/minimum-path-sum|
+|200. 岛屿数量|2|https://leetcode-cn.com/problems/number-of-islands|
+|补充题1. 排序奇升偶降链表|2|https://mp.weixin.qq.com/s/0WVa2wIAeG0nYnVndZiEXQ|
+|94. 二叉树的中序遍历|1|https://leetcode-cn.com/problems/binary-tree-inorder-traversal|
+|补充题6. 手撕堆排序|1|https://leetcode-cn.com/problems/sort-an-array|
+|剑指 Offer 53 - I. 在排序数组中查找数字 I|1|https://leetcode-cn.com/problems/zai-pai-xu-shu-zu-zhong-cha-zhao-shu-zi-lcof|
+|122. 买卖股票的最佳时机 II|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-ii|
+|230. 二叉搜索树中第K小的元素|1|https://leetcode-cn.com/problems/kth-smallest-element-in-a-bst|
+|142. 环形链表 II|1|https://leetcode-cn.com/problems/linked-list-cycle-ii|
+|69. x 的平方根|1|https://leetcode-cn.com/problems/sqrtx|
+|611. 有效三角形的个数|1|https://leetcode-cn.com/problems/valid-triangle-number|
+|221. 最大正方形|1|https://leetcode-cn.com/problems/maximal-square|
+|剑指 Offer 51. 数组中的逆序对|1|https://leetcode-cn.com/problems/shu-zu-zhong-de-ni-xu-dui-lcof|
+|43. 字符串相乘|1|https://leetcode-cn.com/problems/multiply-strings|
+|补充题14. 阿拉伯数字转中文数字|1||
+|16. 最接近的三数之和|1|https://leetcode-cn.com/problems/3sum-closest|
+|102. 二叉树的层序遍历|1|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|215. 数组中的第K个最大元素|1|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|1201. 丑数 III|1|https://leetcode-cn.com/problems/ugly-number-iii|
+|240. 搜索二维矩阵 II|1|https://leetcode-cn.com/problems/search-a-2d-matrix-ii|
+|剑指 Offer 41. 数据流中的中位数|1|https://leetcode-cn.com/problems/shu-ju-liu-zhong-de-zhong-wei-shu-lcof|
+|112. 路径总和|1|https://leetcode-cn.com/problems/path-sum|
+|3. 无重复字符的最长子串|1|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|剑指 Offer 59 - II. 队列的最大值|1|https://leetcode-cn.com/problems/dui-lie-de-zui-da-zhi-lcof|
+|297. 二叉树的序列化与反序列化|1|https://leetcode-cn.com/problems/serialize-and-deserialize-binary-tree|
+|92. 反转链表 II|1|https://leetcode-cn.com/problems/reverse-linked-list-ii|
+|226. 翻转二叉树|1|https://leetcode-cn.com/problems/invert-binary-tree|
+|440. 字典序的第K小数字|1|https://leetcode-cn.com/problems/k-th-smallest-in-lexicographical-order|
+|206. 反转链表|1|https://leetcode-cn.com/problems/reverse-linked-list|
+|42. 接雨水|1|https://leetcode-cn.com/problems/trapping-rain-water|
+|704. 二分查找|1|https://leetcode-cn.com/problems/binary-search|
+|60. 第k个排列|1|https://leetcode-cn.com/problems/permutation-sequence|
+|516. 最长回文子序列|1|https://leetcode-cn.com/problems/longest-palindromic-subsequence|
+|718. 最长重复子数组|1|https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray|
+|5. 最长回文子串|1|https://leetcode-cn.com/problems/longest-palindromic-substring|
+|155. 最小栈|1|https://leetcode-cn.com/problems/min-stack|
+|33. 搜索旋转排序数组|1|https://leetcode-cn.com/problems/search-in-rotated-sorted-array|
+|113. 路径总和 II|1|https://leetcode-cn.com/problems/path-sum-ii|
+|143. 重排链表|1|https://leetcode-cn.com/problems/reorder-list|
+|148. 排序链表|1|https://leetcode-cn.com/problems/sort-list|
+|138. 复制带随机指针的链表|1|https://leetcode-cn.com/problems/copy-list-with-random-pointer|
\ No newline at end of file
diff --git a/bytedance/frontend.md b/bytedance/frontend.md
index c32974f..1f8f0fb 100644
--- a/bytedance/frontend.md
+++ b/bytedance/frontend.md
@@ -1,21 +1,122 @@
-如果只想看本次更新的数据(07.07~07.18)，请[点我](https://github.com/afatcoder/LeetcodeTop/blob/master/bytedance//latest/frontend.md)
+# 前端
+我开发的[CodeTop题库](https://codetop.cc)可以按照部门、难度筛选，比markdown更方便查询高频题
-| 公司 | 岗位 | 题目 | 次数 |
-|------|----|-----------------------------|----|
-| 字节跳动 | 前端 | 209\. 长度最小的子数组 | 5 |
-| 字节跳动 | 前端 | 93\. 复原IP地址 | 3 |
-| 字节跳动 | 前端 | 215\. 数组中的第K个最大元素 | 3 |
-| 字节跳动 | 前端 | 88\. 合并两个有序数组 | 2 |
-| 字节跳动 | 前端 | 129\. 求根到叶子节点数字之和 | 2 |
-| 字节跳动 | 前端 | 104\. 二叉树的最大深度 | 1 |
-| 字节跳动 | 前端 | 剑指 Offer 48\. 最长不含重复字符的子字符串 | 1 |
-| 字节跳动 | 前端 | 680\. 验证回文字符串 Ⅱ | 1 |
-| 字节跳动 | 前端 | 112\. 路径总和 | 1 |
-| 字节跳动 | 前端 | 19\. 删除链表的倒数第N个节点 | 1 |
-| 字节跳动 | 前端 | 1\. 两数之和 | 1 |
-| 字节跳动 | 前端 | 102\. 二叉树的层序遍历 | 1 |
-| 字节跳动 | 前端 | 21\. 合并两个有序链表 | 1 |
-| 字节跳动 | 前端 | 221\. 最大正方形 | 1 |
-| 字节跳动 | 前端 | 509\. 斐波那契数 | 1 |
-| 字节跳动 | 前端 | 70\. 爬楼梯 | 1 |
-| 字节跳动 | 前端 | 98\. 验证二叉搜索树 | 1 |
+|题目|出现次数|链接|
+|-|-|-|
+|3. 无重复字符的最长子串|18|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|88. 合并两个有序数组|17|https://leetcode-cn.com/problems/merge-sorted-array|
+|129. 求根到叶子节点数字之和|15|https://leetcode-cn.com/problems/sum-root-to-leaf-numbers|
+|112. 路径总和|13|https://leetcode-cn.com/problems/path-sum|
+|53. 最大子序和|12|https://leetcode-cn.com/problems/maximum-subarray|
+|1. 两数之和|11|https://leetcode-cn.com/problems/two-sum|
+|165. 比较版本号|11|https://leetcode-cn.com/problems/compare-version-numbers|
+|215. 数组中的第K个最大元素|10|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|209. 长度最小的子数组|8|https://leetcode-cn.com/problems/minimum-size-subarray-sum|
+|剑指 Offer 22. 链表中倒数第k个节点|8|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
+|415. 字符串相加|8|https://leetcode-cn.com/problems/add-strings|
+|46. 全排列|8|https://leetcode-cn.com/problems/permutations|
+|206. 反转链表|7|https://leetcode-cn.com/problems/reverse-linked-list|
+|102. 二叉树的层序遍历|6|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|70. 爬楼梯|6|https://leetcode-cn.com/problems/climbing-stairs|
+|54. 螺旋矩阵|6|https://leetcode-cn.com/problems/spiral-matrix|
+|93. 复原IP地址|5|https://leetcode-cn.com/problems/restore-ip-addresses|
+|200. 岛屿数量|5|https://leetcode-cn.com/problems/number-of-islands|
+|230. 二叉搜索树中第K小的元素|5|https://leetcode-cn.com/problems/kth-smallest-element-in-a-bst|
+|15. 三数之和|5|https://leetcode-cn.com/problems/3sum|
+|141. 环形链表|5|https://leetcode-cn.com/problems/linked-list-cycle|
+|429. N叉树的层序遍历|5|https://leetcode-cn.com/problems/n-ary-tree-level-order-traversal|
+|226. 翻转二叉树|4|https://leetcode-cn.com/problems/invert-binary-tree|
+|121. 买卖股票的最佳时机|4|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|718. 最长重复子数组|4|https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray|
+|160. 相交链表|4|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
+|695. 岛屿的最大面积|4|https://leetcode-cn.com/problems/max-area-of-island|
+|62. 不同路径|4|https://leetcode-cn.com/problems/unique-paths|
+|剑指 Offer 62. 圆圈中最后剩下的数字|4|https://leetcode-cn.com/problems/yuan-quan-zhong-zui-hou-sheng-xia-de-shu-zi-lcof|
+|94. 二叉树的中序遍历|3|https://leetcode-cn.com/problems/binary-tree-inorder-traversal|
+|104. 二叉树的最大深度|3|https://leetcode-cn.com/problems/maximum-depth-of-binary-tree|
+|21. 合并两个有序链表|3|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|509. 斐波那契数|3|https://leetcode-cn.com/problems/fibonacci-number|
+|113. 路径总和 II|3|https://leetcode-cn.com/problems/path-sum-ii|
+|468. 验证IP地址|3|https://leetcode-cn.com/problems/validate-ip-address|
+|31. 下一个排列|3|https://leetcode-cn.com/problems/next-permutation|
+|20. 有效的括号|3|https://leetcode-cn.com/problems/valid-parentheses|
+|349. 两个数组的交集|3|https://leetcode-cn.com/problems/intersection-of-two-arrays|
+|5. 最长回文子串|3|https://leetcode-cn.com/problems/longest-palindromic-substring|
+|236. 二叉树的最近公共祖先|3|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree|
+|146. LRU缓存机制|3|https://leetcode-cn.com/problems/lru-cache|
+|322. 零钱兑换|2|https://leetcode-cn.com/problems/coin-change|
+|394. 字符串解码|2|https://leetcode-cn.com/problems/decode-string|
+|19. 删除链表的倒数第N个节点|2|https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list|
+|剑指 Offer 24. 反转链表|2|https://leetcode-cn.com/problems/fan-zhuan-lian-biao-lcof|
+|42. 接雨水|2|https://leetcode-cn.com/problems/trapping-rain-water|
+|155. 最小栈|2|https://leetcode-cn.com/problems/min-stack|
+|169. 多数元素|2|https://leetcode-cn.com/problems/majority-element|
+|剑指 Offer 21. 调整数组顺序使奇数位于偶数前面|2|https://leetcode-cn.com/problems/diao-zheng-shu-zu-shun-xu-shi-qi-shu-wei-yu-ou-shu-qian-mian-lcof|
+|67. 二进制求和|2|https://leetcode-cn.com/problems/add-binary|
+|144. 二叉树的前序遍历|2|https://leetcode-cn.com/problems/binary-tree-preorder-traversal|
+|198. 打家劫舍|2|https://leetcode-cn.com/problems/house-robber|
+|14. 最长公共前缀|2|https://leetcode-cn.com/problems/longest-common-prefix|
+|补充题3. 求区间最小数乘区间和的最大值|2|https://mp.weixin.qq.com/s/UFv7pt_djjZoK_gzUBrRXA|
+|199. 二叉树的右视图|2|https://leetcode-cn.com/problems/binary-tree-right-side-view|
+|剑指 Offer 09. 用两个栈实现队列|2|https://leetcode-cn.com/problems/yong-liang-ge-zhan-shi-xian-dui-lie-lcof|
+|56. 合并区间|2|https://leetcode-cn.com/problems/merge-intervals|
+|300. 最长上升子序列|2|https://leetcode-cn.com/problems/longest-increasing-subsequence|
+|剑指 Offer 38. 字符串的排列|2|https://leetcode-cn.com/problems/zi-fu-chuan-de-pai-lie-lcof|
+|补充题14. 阿拉伯数字转中文数字|2||
+|400. 第N个数字|2|https://leetcode-cn.com/problems/nth-digit|
+|101. 对称二叉树|2|https://leetcode-cn.com/problems/symmetric-tree|
+|剑指 Offer 48. 最长不含重复字符的子字符串|1|https://leetcode-cn.com/problems/zui-chang-bu-han-zhong-fu-zi-fu-de-zi-zi-fu-chuan-lcof|
+|680. 验证回文字符串 Ⅱ|1|https://leetcode-cn.com/problems/valid-palindrome-ii|
+|124. 二叉树中的最大路径和|1|https://leetcode-cn.com/problems/binary-tree-maximum-path-sum|
+|221. 最大正方形|1|https://leetcode-cn.com/problems/maximal-square|
+|98. 验证二叉搜索树|1|https://leetcode-cn.com/problems/validate-binary-search-tree|
+|1047. 删除字符串中的所有相邻重复项|1|https://leetcode-cn.com/problems/remove-all-adjacent-duplicates-in-string|
+|44. 通配符匹配|1|https://leetcode-cn.com/problems/wildcard-matching|
+|130. 被围绕的区域|1|https://leetcode-cn.com/problems/surrounded-regions|
+|16. 最接近的三数之和|1|https://leetcode-cn.com/problems/3sum-closest|
+|498. 对角线遍历|1|https://leetcode-cn.com/problems/diagonal-traverse|
+|224. 基本计算器|1|https://leetcode-cn.com/problems/basic-calculator|
+|227. 基本计算器 II|1|https://leetcode-cn.com/problems/basic-calculator-ii|
+|剑指 Offer 04. 二维数组中的查找|1|https://leetcode-cn.com/problems/er-wei-shu-zu-zhong-de-cha-zhao-lcof|
+|443. 压缩字符串|1|https://leetcode-cn.com/problems/string-compression|
+|142. 环形链表 II|1|https://leetcode-cn.com/problems/linked-list-cycle-ii|
+|984. 不含 AAA 或 BBB 的字符串|1|https://leetcode-cn.com/problems/string-without-aaa-or-bbb|
+|151. 翻转字符串里的单词|1|https://leetcode-cn.com/problems/reverse-words-in-a-string|
+|213. 打家劫舍 II|1|https://leetcode-cn.com/problems/house-robber-ii|
+|114. 二叉树展开为链表|1|https://leetcode-cn.com/problems/flatten-binary-tree-to-linked-list|
+|109. 有序链表转换二叉搜索树|1|https://leetcode-cn.com/problems/convert-sorted-list-to-binary-search-tree|
+|242. 有效的字母异位词|1|https://leetcode-cn.com/problems/valid-anagram|
+|862. 和至少为 K 的最短子数组|1|https://leetcode-cn.com/problems/shortest-subarray-with-sum-at-least-k|
+|1498. 满足条件的子序列数目|1|https://leetcode-cn.com/problems/number-of-subsequences-that-satisfy-the-given-sum-condition|
+|257. 二叉树的所有路径|1|https://leetcode-cn.com/problems/binary-tree-paths|
+|63. 不同路径 II|1|https://leetcode-cn.com/problems/unique-paths-ii|
+|609. 在系统中查找重复文件|1|https://leetcode-cn.com/problems/find-duplicate-file-in-system|
+|232. 用栈实现队列|1|https://leetcode-cn.com/problems/implement-queue-using-stacks|
+|39. 组合总和|1|https://leetcode-cn.com/problems/combination-sum|
+|剑指 Offer 10- I. 斐波那契数列|1|https://leetcode-cn.com/problems/fei-bo-na-qi-shu-lie-lcof|
+|361. 轰炸敌人|1|https://leetcode-cn.com/problems/bomb-enemy|
+|525. 连续数组|1|https://leetcode-cn.com/problems/contiguous-array|
+|96. 不同的二叉搜索树|1|https://leetcode-cn.com/problems/unique-binary-search-trees|
+|103. 二叉树的锯齿形层次遍历|1|https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal|
+|717. 1比特与2比特字符|1|https://leetcode-cn.com/problems/1-bit-and-2-bit-characters|
+|1353. 最多可以参加的会议数目|1|https://leetcode-cn.com/problems/maximum-number-of-events-that-can-be-attended|
+|剑指 Offer 63. 股票的最大利润|1|https://leetcode-cn.com/problems/gu-piao-de-zui-da-li-run-lcof|
+|剑指 Offer 27. 二叉树的镜像|1|https://leetcode-cn.com/problems/er-cha-shu-de-jing-xiang-lcof|
+|LCP 04. 覆盖|1|https://leetcode-cn.com/problems/broken-board-dominoes|
+|剑指 Offer 39. 数组中出现次数超过一半的数字|1|https://leetcode-cn.com/problems/shu-zu-zhong-chu-xian-ci-shu-chao-guo-yi-ban-de-shu-zi-lcof|
+|剑指 Offer 07. 重建二叉树|1|https://leetcode-cn.com/problems/zhong-jian-er-cha-shu-lcof|
+|829. 连续整数求和|1|https://leetcode-cn.com/problems/consecutive-numbers-sum|
+|1356. 根据数字二进制下 1 的数目排序|1|https://leetcode-cn.com/problems/sort-integers-by-the-number-of-1-bits|
+|6. Z 字形变换|1|https://leetcode-cn.com/problems/zigzag-conversion|
+|704. 二分查找|1|https://leetcode-cn.com/problems/binary-search|
+|111. 二叉树的最小深度|1|https://leetcode-cn.com/problems/minimum-depth-of-binary-tree|
+|105. 从前序与中序遍历序列构造二叉树|1|https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal|
+|783. 二叉搜索树节点最小距离|1|https://leetcode-cn.com/problems/minimum-distance-between-bst-nodes|
+|剑指 Offer 42. 连续子数组的最大和|1|https://leetcode-cn.com/problems/lian-xu-zi-shu-zu-de-zui-da-he-lcof|
+|55. 跳跃游戏|1|https://leetcode-cn.com/problems/jump-game|
+|2. 两数相加|1|https://leetcode-cn.com/problems/add-two-numbers|
+|1410. HTML 实体解析器|1|https://leetcode-cn.com/problems/html-entity-parser|
+|125. 验证回文串|1|https://leetcode-cn.com/problems/valid-palindrome|
+|12. 整数转罗马数字|1|https://leetcode-cn.com/problems/integer-to-roman|
+|45. 跳跃游戏 II|1|https://leetcode-cn.com/problems/jump-game-ii|
+|43. 字符串相乘|1|https://leetcode-cn.com/problems/multiply-strings|
\ No newline at end of file
diff --git a/bytedance/latest.md b/bytedance/latest.md
deleted file mode 100644
index 4e742d5..0000000
--- a/bytedance/latest.md
+++ /dev/null
@@ -1,274 +0,0 @@
-# 字节跳动最新涉及的leetcode题目
-牛客秋招季的面经量大爆发，本次统计了2020.07.28~2020.09.01共190篇面经
-
-最近我开发了一个简易版网站https://leetcode-cn.top/
-
-网站比静态的markdown更方便大家按公司/部门/岗位查询题目
-
-欢迎大家前来体验❤️
-
-## 后端
-| 题目 | 出现次数 | 链接 |
-|----------------------------|------|--------------------------------------------------------------------------------------------|
-| 15. 三数之和 | 8 | https://leetcode-cn.com/problems/3sum |
-| 121. 买卖股票的最佳时机 | 7 | https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock |
-| 199. 二叉树的右视图 | 6 | https://leetcode-cn.com/problems/binary-tree-right-side-view |
-| 103. 二叉树的锯齿形层次遍历 | 6 | https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal |
-| 1. 两数之和 | 6 | https://leetcode-cn.com/problems/two-sum |
-| 69. x 的平方根 | 5 | https://leetcode-cn.com/problems/sqrtx |
-| 42. 接雨水 | 5 | https://leetcode-cn.com/problems/trapping-rain-water |
-| 98. 验证二叉搜索树 | 5 | https://leetcode-cn.com/problems/validate-binary-search-tree |
-| 160. 相交链表 | 5 | https://leetcode-cn.com/problems/intersection-of-two-linked-lists |
-| 92. 反转链表 II | 4 | https://leetcode-cn.com/problems/reverse-linked-list-ii |
-| 54. 螺旋矩阵 | 4 | https://leetcode-cn.com/problems/spiral-matrix |
-| 3. 无重复字符的最长子串 | 4 | https://leetcode-cn.com/problems/longest-substring-without-repeating-characters |
-| 25. K 个一组翻转链表 | 4 | https://leetcode-cn.com/problems/reverse-nodes-in-k-group |
-| 287. 寻找重复数 | 4 | https://leetcode-cn.com/problems/find-the-duplicate-number |
-| 470. 用 Rand7() 实现 Rand10() | 3 | https://leetcode-cn.com/problems/implement-rand10-using-rand7 |
-| 234. 回文链表 | 3 | https://leetcode-cn.com/problems/palindrome-linked-list |
-| 206. 反转链表 | 3 | https://leetcode-cn.com/problems/reverse-linked-list |
-| 518. 零钱兑换 II | 3 | https://leetcode-cn.com/problems/coin-change-2 |
-| 46. 全排列 | 3 | https://leetcode-cn.com/problems/permutations |
-| 101. 对称二叉树 | 3 | https://leetcode-cn.com/problems/symmetric-tree |
-| 146. LRU缓存机制 | 3 | https://leetcode-cn.com/problems/lru-cache |
-| 41. 缺失的第一个正数 | 3 | https://leetcode-cn.com/problems/first-missing-positive |
-| 236. 二叉树的最近公共祖先 | 3 | https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree |
-| 21. 合并两个有序链表 | 2 | https://leetcode-cn.com/problems/merge-two-sorted-lists |
-| 24. 两两交换链表中的节点 | 2 | https://leetcode-cn.com/problems/swap-nodes-in-pairs |
-| 200. 岛屿数量 | 2 | https://leetcode-cn.com/problems/number-of-islands |
-| 23. 合并K个升序链表 | 2 | https://leetcode-cn.com/problems/merge-k-sorted-lists |
-| 104. 二叉树的最大深度 | 2 | https://leetcode-cn.com/problems/maximum-depth-of-binary-tree |
-| 135. 分发糖果 | 2 | https://leetcode-cn.com/problems/candy |
-| 48. 旋转图像 | 2 | https://leetcode-cn.com/problems/rotate-image |
-| 398. 随机数索引 | 2 | https://leetcode-cn.com/problems/random-pick-index |
-| 53. 最大子序和 | 2 | https://leetcode-cn.com/problems/maximum-subarray |
-| 958. 二叉树的完全性检验 | 2 | https://leetcode-cn.com/problems/check-completeness-of-a-binary-tree |
-| 45. 跳跃游戏 II | 2 | https://leetcode-cn.com/problems/jump-game-ii |
-| 105. 从前序与中序遍历序列构造二叉树 | 2 | https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal |
-| 560. 和为K的子数组 | 2 | https://leetcode-cn.com/problems/subarray-sum-equals-k |
-| 剑指 Offer 22. 链表中倒数第k个节点 | 2 | https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof |
-| 739. 每日温度 | 2 | https://leetcode-cn.com/problems/daily-temperatures |
-| 155. 最小栈 | 2 | https://leetcode-cn.com/problems/min-stack |
-| 198. 打家劫舍 | 2 | https://leetcode-cn.com/problems/house-robber |
-| 215. 数组中的第K个最大元素 | 2 | https://leetcode-cn.com/problems/kth-largest-element-in-an-array |
-| 543. 二叉树的直径 | 2 | https://leetcode-cn.com/problems/diameter-of-binary-tree |
-| 300. 最长上升子序列 | 2 | https://leetcode-cn.com/problems/longest-increasing-subsequence |
-| 662. 二叉树最大宽度 | 1 | https://leetcode-cn.com/problems/maximum-width-of-binary-tree |
-| 402. 移掉K位数字 | 1 | https://leetcode-cn.com/problems/remove-k-digits |
-| 148. 排序链表 | 1 | https://leetcode-cn.com/problems/sort-list |
-| 670. 最大交换 | 1 | https://leetcode-cn.com/problems/maximum-swap |
-| 169. 多数元素 | 1 | https://leetcode-cn.com/problems/majority-element |
-| 895. 最大频率栈 | 1 | https://leetcode-cn.com/problems/maximum-frequency-stack |
-| 93. 复原IP地址 | 1 | https://leetcode-cn.com/problems/restore-ip-addresses |
-| 325. 和等于 k 的最长子数组长度 | 1 | https://leetcode-cn.com/problems/maximum-size-subarray-sum-equals-k |
-| 226. 翻转二叉树 | 1 | https://leetcode-cn.com/problems/invert-binary-tree |
-| 114. 二叉树展开为链表 | 1 | https://leetcode-cn.com/problems/flatten-binary-tree-to-linked-list |
-| 122. 买卖股票的最佳时机 II | 1 | https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-ii |
-| 19. 删除链表的倒数第N个节点 | 1 | https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list |
-| 145. 二叉树的后序遍历 | 1 | https://leetcode-cn.com/problems/binary-tree-postorder-traversal |
-| 1363. 形成三的最大倍数 | 1 | https://leetcode-cn.com/problems/largest-multiple-of-three |
-| 22. 括号生成 | 1 | https://leetcode-cn.com/problems/generate-parentheses |
-| 151. 翻转字符串里的单词 | 1 | https://leetcode-cn.com/problems/reverse-words-in-a-string |
-| 剑指 Offer 36. 二叉搜索树与双向链表 | 1 | https://leetcode-cn.com/problems/er-cha-sou-suo-shu-yu-shuang-xiang-lian-biao-lcof |
-| 328. 奇偶链表 | 1 | https://leetcode-cn.com/problems/odd-even-linked-list |
-| 951. 翻转等价二叉树 | 1 | https://leetcode-cn.com/problems/flip-equivalent-binary-trees |
-| 107. 二叉树的层次遍历 II | 1 | https://leetcode-cn.com/problems/binary-tree-level-order-traversal-ii |
-| 32. 最长有效括号 | 1 | https://leetcode-cn.com/problems/longest-valid-parentheses |
-| 143. 重排链表 | 1 | https://leetcode-cn.com/problems/reorder-list |
-| 99. 恢复二叉搜索树 | 1 | https://leetcode-cn.com/problems/recover-binary-search-tree |
-| 152. 乘积最大子数组 | 1 | https://leetcode-cn.com/problems/maximum-product-subarray |
-| 20. 有效的括号 | 1 | https://leetcode-cn.com/problems/valid-parentheses |
-| 50. Pow(x, n) | 1 | https://leetcode-cn.com/problems/powx-n |
-| 224. 基本计算器 | 1 | https://leetcode-cn.com/problems/basic-calculator |
-| 71. 简化路径 | 1 | https://leetcode-cn.com/problems/simplify-path |
-| 637. 二叉树的层平均值 | 1 | https://leetcode-cn.com/problems/average-of-levels-in-binary-tree |
-| 416. 分割等和子集 | 1 | https://leetcode-cn.com/problems/partition-equal-subset-sum |
-| 503. 下一个更大元素 II | 1 | https://leetcode-cn.com/problems/next-greater-element-ii |
-| 4. 寻找两个正序数组的中位数 | 1 | https://leetcode-cn.com/problems/median-of-two-sorted-arrays |
-| 394. 字符串解码 | 1 | https://leetcode-cn.com/problems/decode-string |
-| 209. 长度最小的子数组 | 1 | https://leetcode-cn.com/problems/minimum-size-subarray-sum |
-| 208. 实现 Trie (前缀树) | 1 | https://leetcode-cn.com/problems/implement-trie-prefix-tree |
-| 862. 和至少为 K 的最短子数组 | 1 | https://leetcode-cn.com/problems/shortest-subarray-with-sum-at-least-k |
-| 88. 合并两个有序数组 | 1 | https://leetcode-cn.com/problems/merge-sorted-array |
-| 31. 下一个排列 | 1 | https://leetcode-cn.com/problems/next-permutation |
-| 94. 二叉树的中序遍历 | 1 | https://leetcode-cn.com/problems/binary-tree-inorder-traversal |
-| 124. 二叉树中的最大路径和 | 1 | https://leetcode-cn.com/problems/binary-tree-maximum-path-sum |
-| 277. 搜寻名人 | 1 | https://leetcode-cn.com/problems/find-the-celebrity |
-| 240. 搜索二维矩阵 II | 1 | https://leetcode-cn.com/problems/search-a-2d-matrix-ii |
-| 134. 加油站 | 1 | https://leetcode-cn.com/problems/gas-station |
-| 456. 132模式 | 1 | https://leetcode-cn.com/problems/132-pattern |
-| 139. 单词拆分 | 1 | https://leetcode-cn.com/problems/word-break |
-| 415. 字符串相加 | 1 | https://leetcode-cn.com/problems/add-strings |
-| 528. 按权重随机选择 | 1 | https://leetcode-cn.com/problems/random-pick-with-weight |
-| 56. 合并区间 | 1 | https://leetcode-cn.com/problems/merge-intervals |
-| 322. 零钱兑换 | 1 | https://leetcode-cn.com/problems/coin-change |
-| 340. 至多包含 K 个不同字符的最长子串 | 1 | https://leetcode-cn.com/problems/longest-substring-with-at-most-k-distinct-characters |
-| 1143. 最长公共子序列 | 1 | https://leetcode-cn.com/problems/longest-common-subsequence |
-
-## 客户端
-| 题目 | 出现次数 | 链接 |
-|---------------------------------|------|--------------------------------------------------------------------------------------------|
-| 206. 反转链表 | 6 | https://leetcode-cn.com/problems/reverse-linked-list |
-| 53. 最大子序和 | 4 | https://leetcode-cn.com/problems/maximum-subarray |
-| 42. 接雨水 | 4 | https://leetcode-cn.com/problems/trapping-rain-water |
-| 160. 相交链表 | 4 | https://leetcode-cn.com/problems/intersection-of-two-linked-lists |
-| 3. 无重复字符的最长子串 | 4 | https://leetcode-cn.com/problems/longest-substring-without-repeating-characters |
-| 4. 寻找两个正序数组的中位数 | 3 | https://leetcode-cn.com/problems/median-of-two-sorted-arrays |
-| 232. 用栈实现队列 | 3 | https://leetcode-cn.com/problems/implement-queue-using-stacks |
-| 199. 二叉树的右视图 | 3 | https://leetcode-cn.com/problems/binary-tree-right-side-view |
-| 25. K 个一组翻转链表 | 3 | https://leetcode-cn.com/problems/reverse-nodes-in-k-group |
-| 200. 岛屿数量 | 3 | https://leetcode-cn.com/problems/number-of-islands |
-| 101. 对称二叉树 | 3 | https://leetcode-cn.com/problems/symmetric-tree |
-| 1. 两数之和 | 3 | https://leetcode-cn.com/problems/two-sum |
-| 165. 比较版本号 | 3 | https://leetcode-cn.com/problems/compare-version-numbers |
-| 144. 二叉树的前序遍历 | 2 | https://leetcode-cn.com/problems/binary-tree-preorder-traversal |
-| 21. 合并两个有序链表 | 2 | https://leetcode-cn.com/problems/merge-two-sorted-lists |
-| 415. 字符串相加 | 2 | https://leetcode-cn.com/problems/add-strings |
-| 82. 删除排序链表中的重复元素 II | 2 | https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list-ii |
-| 110. 平衡二叉树 | 2 | https://leetcode-cn.com/problems/balanced-binary-tree |
-| 460. LFU 缓存 | 2 | https://leetcode-cn.com/problems/lfu-cache |
-| 69. x 的平方根 | 2 | https://leetcode-cn.com/problems/sqrtx |
-| 34. 在排序数组中查找元素的第一个和最后一个位置 | 2 | https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array |
-| 189. 旋转数组 | 2 | https://leetcode-cn.com/problems/rotate-array |
-| 5. 最长回文子串 | 2 | https://leetcode-cn.com/problems/longest-palindromic-substring |
-| 71. 简化路径 | 1 | https://leetcode-cn.com/problems/simplify-path |
-| 2. 两数相加 | 1 | https://leetcode-cn.com/problems/add-two-numbers |
-| 162. 寻找峰值 | 1 | https://leetcode-cn.com/problems/find-peak-element |
-| 98. 验证二叉搜索树 | 1 | https://leetcode-cn.com/problems/validate-binary-search-tree |
-| 55. 跳跃游戏 | 1 | https://leetcode-cn.com/problems/jump-game |
-| 394. 字符串解码 | 1 | https://leetcode-cn.com/problems/decode-string |
-| 557. 反转字符串中的单词 III | 1 | https://leetcode-cn.com/problems/reverse-words-in-a-string-iii |
-| 17. 电话号码的字母组合 | 1 | https://leetcode-cn.com/problems/letter-combinations-of-a-phone-number |
-| 7. 整数反转 | 1 | https://leetcode-cn.com/problems/reverse-integer |
-| 225. 用队列实现栈 | 1 | https://leetcode-cn.com/problems/implement-stack-using-queues |
-| 104. 二叉树的最大深度 | 1 | https://leetcode-cn.com/problems/maximum-depth-of-binary-tree |
-| 445. 两数相加 II | 1 | https://leetcode-cn.com/problems/add-two-numbers-ii |
-| 1233. 删除子文件夹 | 1 | https://leetcode-cn.com/problems/remove-sub-folders-from-the-filesystem |
-| 701. 二叉搜索树中的插入操作 | 1 | https://leetcode-cn.com/problems/insert-into-a-binary-search-tree |
-| 236. 二叉树的最近公共祖先 | 1 | https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree |
-| 72. 编辑距离 | 1 | https://leetcode-cn.com/problems/edit-distance |
-| 148. 排序链表 | 1 | https://leetcode-cn.com/problems/sort-list |
-| 138. 复制带随机指针的链表 | 1 | https://leetcode-cn.com/problems/copy-list-with-random-pointer |
-| 剑指 Offer 36. 二叉搜索树与双向链表 | 1 | https://leetcode-cn.com/problems/er-cha-sou-suo-shu-yu-shuang-xiang-lian-biao-lcof |
-| 141. 环形链表 | 1 | https://leetcode-cn.com/problems/linked-list-cycle |
-| 46. 全排列 | 1 | https://leetcode-cn.com/problems/permutations |
-| 105. 从前序与中序遍历序列构造二叉树 | 1 | https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal |
-| 41. 缺失的第一个正数 | 1 | https://leetcode-cn.com/problems/first-missing-positive |
-| 164. 最大间距 | 1 | https://leetcode-cn.com/problems/maximum-gap |
-| 958. 二叉树的完全性检验 | 1 | https://leetcode-cn.com/problems/check-completeness-of-a-binary-tree |
-| 503. 下一个更大元素 II | 1 | https://leetcode-cn.com/problems/next-greater-element-ii |
-| 56. 合并区间 | 1 | https://leetcode-cn.com/problems/merge-intervals |
-| 59. 螺旋矩阵 II | 1 | https://leetcode-cn.com/problems/spiral-matrix-ii |
-| 102. 二叉树的层序遍历 | 1 | https://leetcode-cn.com/problems/binary-tree-level-order-traversal |
-| 92. 反转链表 II | 1 | https://leetcode-cn.com/problems/reverse-linked-list-ii |
-| 329. 矩阵中的最长递增路径 | 1 | https://leetcode-cn.com/problems/longest-increasing-path-in-a-matrix |
-| 151. 翻转字符串里的单词 | 1 | https://leetcode-cn.com/problems/reverse-words-in-a-string |
-| 113. 路径总和 II | 1 | https://leetcode-cn.com/problems/path-sum-ii |
-| 15. 三数之和 | 1 | https://leetcode-cn.com/problems/3sum |
-| 142. 环形链表 II | 1 | https://leetcode-cn.com/problems/linked-list-cycle-ii |
-| 16. 最接近的三数之和 | 1 | https://leetcode-cn.com/problems/3sum-closest |
-| 1047. 删除字符串中的所有相邻重复项 | 1 | https://leetcode-cn.com/problems/remove-all-adjacent-duplicates-in-string |
-| 670. 最大交换 | 1 | https://leetcode-cn.com/problems/maximum-swap |
-| 121. 买卖股票的最佳时机 | 1 | https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock |
-| 20. 有效的括号 | 1 | https://leetcode-cn.com/problems/valid-parentheses |
-| 863. 二叉树中所有距离为 K 的结点 | 1 | https://leetcode-cn.com/problems/all-nodes-distance-k-in-binary-tree |
-| 238. 除自身以外数组的乘积 | 1 | https://leetcode-cn.com/problems/product-of-array-except-self |
-| 347. 前 K 个高频元素 | 1 | https://leetcode-cn.com/problems/top-k-frequent-elements |
-| 44. 通配符匹配 | 1 | https://leetcode-cn.com/problems/wildcard-matching |
-| 215. 数组中的第K个最大元素 | 1 | https://leetcode-cn.com/problems/kth-largest-element-in-an-array |
-| 79. 单词搜索 | 1 | https://leetcode-cn.com/problems/word-search |
-| 977. 有序数组的平方 | 1 | https://leetcode-cn.com/problems/squares-of-a-sorted-array |
-| 155. 最小栈 | 1 | https://leetcode-cn.com/problems/min-stack |
-| 767. 重构字符串 | 1 | https://leetcode-cn.com/problems/reorganize-string |
-| 662. 二叉树最大宽度 | 1 | https://leetcode-cn.com/problems/maximum-width-of-binary-tree |
-| 240. 搜索二维矩阵 II | 1 | https://leetcode-cn.com/problems/search-a-2d-matrix-ii |
-| 242. 有效的字母异位词 | 1 | https://leetcode-cn.com/problems/valid-anagram |
-| 283. 移动零 | 1 | https://leetcode-cn.com/problems/move-zeroes |
-| 剑指 Offer 56 - II. 数组中数字出现的次数 II | 1 | https://leetcode-cn.com/problems/shu-zu-zhong-shu-zi-chu-xian-de-ci-shu-ii-lcof |
-| 146. LRU缓存机制 | 1 | https://leetcode-cn.com/problems/lru-cache |
-
-## 算法
-| 题目 | 出现次数 | 链接 |
-|-----------------------|------|--------------------------------------------------------------------------------------------|
-| 49. 字母异位词分组 | 1 | https://leetcode-cn.com/problems/group-anagrams |
-| 209. 长度最小的子数组 | 1 | https://leetcode-cn.com/problems/minimum-size-subarray-sum |
-| 48. 旋转图像 | 1 | https://leetcode-cn.com/problems/rotate-image |
-| 85. 最大矩形 | 1 | https://leetcode-cn.com/problems/maximal-rectangle |
-| 518. 零钱兑换 II | 1 | https://leetcode-cn.com/problems/coin-change-2 |
-| 426. 将二叉搜索树转化为排序的双向链表 | 1 | https://leetcode-cn.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list |
-| 200. 岛屿数量 | 1 | https://leetcode-cn.com/problems/number-of-islands |
-| 287. 寻找重复数 | 1 | https://leetcode-cn.com/problems/find-the-duplicate-number |
-| 236. 二叉树的最近公共祖先 | 1 | https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree |
-| 50. Pow(x, n) | 1 | https://leetcode-cn.com/problems/powx-n |
-| 64. 最小路径和 | 1 | https://leetcode-cn.com/problems/minimum-path-sum |
-| 105. 从前序与中序遍历序列构造二叉树 | 1 | https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal |
-| 122. 买卖股票的最佳时机 II | 1 | https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-ii |
-| 179. 最大数 | 1 | https://leetcode-cn.com/problems/largest-number |
-| 807. 保持城市天际线 | 1 | https://leetcode-cn.com/problems/max-increase-to-keep-city-skyline |
-| 123. 买卖股票的最佳时机 III | 1 | https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iii |
-| 300. 最长上升子序列 | 1 | https://leetcode-cn.com/problems/longest-increasing-subsequence |
-| 315. 计算右侧小于当前元素的个数 | 1 | https://leetcode-cn.com/problems/count-of-smaller-numbers-after-self |
-
-## 前端
-| 题目 | 出现次数 | 链接 |
-|-------------------------|------|-------------------------------------------------------------------------------|
-| 415. 字符串相加 | 3 | https://leetcode-cn.com/problems/add-strings |
-| 215. 数组中的第K个最大元素 | 2 | https://leetcode-cn.com/problems/kth-largest-element-in-an-array |
-| 155. 最小栈 | 2 | https://leetcode-cn.com/problems/min-stack |
-| 113. 路径总和 II | 1 | https://leetcode-cn.com/problems/path-sum-ii |
-| 230. 二叉搜索树中第K小的元素 | 1 | https://leetcode-cn.com/problems/kth-smallest-element-in-a-bst |
-| 102. 二叉树的层序遍历 | 1 | https://leetcode-cn.com/problems/binary-tree-level-order-traversal |
-| 93. 复原IP地址 | 1 | https://leetcode-cn.com/problems/restore-ip-addresses |
-| 42. 接雨水 | 1 | https://leetcode-cn.com/problems/trapping-rain-water |
-| 44. 通配符匹配 | 1 | https://leetcode-cn.com/problems/wildcard-matching |
-| 剑指 Offer 22. 链表中倒数第k个节点 | 1 | https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof |
-| 88. 合并两个有序数组 | 1 | https://leetcode-cn.com/problems/merge-sorted-array |
-| 130. 被围绕的区域 | 1 | https://leetcode-cn.com/problems/surrounded-regions |
-| 16. 最接近的三数之和 | 1 | https://leetcode-cn.com/problems/3sum-closest |
-| 165. 比较版本号 | 1 | https://leetcode-cn.com/problems/compare-version-numbers |
-| 498. 对角线遍历 | 1 | https://leetcode-cn.com/problems/diagonal-traverse |
-| 169. 多数元素 | 1 | https://leetcode-cn.com/problems/majority-element |
-| 224. 基本计算器 | 1 | https://leetcode-cn.com/problems/basic-calculator |
-| 227. 基本计算器 II | 1 | https://leetcode-cn.com/problems/basic-calculator-ii |
-| 15. 三数之和 | 1 | https://leetcode-cn.com/problems/3sum |
-| 121. 买卖股票的最佳时机 | 1 | https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock |
-| 509. 斐波那契数 | 1 | https://leetcode-cn.com/problems/fibonacci-number |
-| 112. 路径总和 | 1 | https://leetcode-cn.com/problems/path-sum |
-
-## 测试
-| 题目 | 出现次数 | 链接 |
-|-----------------------|------|---------------------------------------------------------------------------------|
-| 3. 无重复字符的最长子串 | 4 | https://leetcode-cn.com/problems/longest-substring-without-repeating-characters |
-| 20. 有效的括号 | 2 | https://leetcode-cn.com/problems/valid-parentheses |
-| 94. 二叉树的中序遍历 | 2 | https://leetcode-cn.com/problems/binary-tree-inorder-traversal |
-| 42. 接雨水 | 2 | https://leetcode-cn.com/problems/trapping-rain-water |
-| 41. 缺失的第一个正数 | 1 | https://leetcode-cn.com/problems/first-missing-positive |
-| 498. 对角线遍历 | 1 | https://leetcode-cn.com/problems/diagonal-traverse |
-| 415. 字符串相加 | 1 | https://leetcode-cn.com/problems/add-strings |
-| 125. 验证回文串 | 1 | https://leetcode-cn.com/problems/valid-palindrome |
-| 268. 丢失的数字 | 1 | https://leetcode-cn.com/problems/missing-number |
-| 49. 字母异位词分组 | 1 | https://leetcode-cn.com/problems/group-anagrams |
-| 79. 单词搜索 | 1 | https://leetcode-cn.com/problems/word-search |
-| 169. 多数元素 | 1 | https://leetcode-cn.com/problems/majority-element |
-| 26. 删除排序数组中的重复项 | 1 | https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array |
-| 232. 用栈实现队列 | 1 | https://leetcode-cn.com/problems/implement-queue-using-stacks |
-| 206. 反转链表 | 1 | https://leetcode-cn.com/problems/reverse-linked-list |
-| 25. K 个一组翻转链表 | 1 | https://leetcode-cn.com/problems/reverse-nodes-in-k-group |
-| 97. 交错字符串 | 1 | https://leetcode-cn.com/problems/interleaving-string |
-| 198. 打家劫舍 | 1 | https://leetcode-cn.com/problems/house-robber |
-| 剑指 Offer 61. 扑克牌中的顺子 | 1 | https://leetcode-cn.com/problems/bu-ke-pai-zhong-de-shun-zi-lcof |
-| 121. 买卖股票的最佳时机 | 1 | https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock |
-| 64. 最小路径和 | 1 | https://leetcode-cn.com/problems/minimum-path-sum |
-| 5. 最长回文子串 | 1 | https://leetcode-cn.com/problems/longest-palindromic-substring |
-| 141. 环形链表 | 1 | https://leetcode-cn.com/problems/linked-list-cycle |
-| 154. 寻找旋转排序数组中的最小值 II | 1 | https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array-ii |
-
-
-## 数据相关
-| 题目 | 出现次数 | 链接 |
-|-------------------|------|------------------------------------------------------------------------|
-| 101. 对称二叉树 | 1 | https://leetcode-cn.com/problems/symmetric-tree |
-| 25. K 个一组翻转链表 | 1 | https://leetcode-cn.com/problems/reverse-nodes-in-k-group |
-| 297. 二叉树的序列化与反序列化 | 1 | https://leetcode-cn.com/problems/serialize-and-deserialize-binary-tree |
-
-
diff --git a/bytedance/test.md b/bytedance/test.md
index 3173245..293e24b 100644
--- a/bytedance/test.md
+++ b/bytedance/test.md
@@ -1,48 +1,134 @@
-如果只想看本次更新的数据(07.07~07.18)，请[点我](https://github.com/afatcoder/LeetcodeTop/blob/master/bytedance//latest/test.md)
-
-| 公司 | 岗位 | 题目 | 次数 |
-|------|----|-------------------------------|----|
-| 字节跳动 | 测试 | 3\. 无重复字符的最长子串 | 4 |
-| 字节跳动 | 测试 | 78\. 子集 | 4 |
-| 字节跳动 | 测试 | 20\. 有效的括号 | 3 |
-| 字节跳动 | 测试 | 206\. 反转链表 | 3 |
-| 字节跳动 | 测试 | 179\. 最大数 | 2 |
-| 字节跳动 | 测试 | 146\. LRU缓存机制 | 2 |
-| 字节跳动 | 测试 | 1\.两数之和 | 2 |
-| 字节跳动 | 测试 | 15\. 三数之和 | 2 |
-| 字节跳动 | 测试 | 25\. K 个一组翻转链表 | 2 |
-| 字节跳动 | 测试 | 110\. 平衡二叉树 | 2 |
-| 字节跳动 | 测试 | 142\. 环形链表 II | 2 |
-| 字节跳动 | 测试 | 1\. 两数之和 | 2 |
-| 字节跳动 | 测试 | 62\. 不同路径 | 2 |
-| 字节跳动 | 测试 | 169\. 多数元素 | 2 |
-| 字节跳动 | 测试 | 543\. 二叉树的直径 | 2 |
-| 字节跳动 | 测试 | 415\. 字符串相加 | 2 |
-| 字节跳动 | 测试 | 160\. 相交链表 | 1 |
-| 字节跳动 | 测试 | 剑指 Offer 39\. 数组中出现次数超过一半的数字 | 1 |
-| 字节跳动 | 测试 | 剑指 Offer 21\. 调整数组顺序使奇数位于偶数前面 | 1 |
-| 字节跳动 | 测试 | 236\. 二叉树的最近公共祖先 | 1 |
-| 字节跳动 | 测试 | 19\. 删除链表的倒数第N个节点 | 1 |
-| 字节跳动 | 测试 | 9\. 回文数 | 1 |
-| 字节跳动 | 测试 | 405\. 数字转换为十六进制数 | 1 |
-| 字节跳动 | 测试 | 200\. 岛屿数量 | 1 |
-| 字节跳动 | 测试 | 64\. 最小路径和 | 1 |
-| 字节跳动 | 测试 | 350\. 两个数组的交集 II | 1 |
-| 字节跳动 | 测试 | 94\. 二叉树的中序遍历 | 1 |
-| 字节跳动 | 测试 | 14\. 最长公共前缀 | 1 |
-| 字节跳动 | 测试 | 51\. N皇后 | 1 |
-| 字节跳动 | 测试 | 1201\. 丑数 III | 1 |
-| 字节跳动 | 测试 | 剑指 Offer 61\. 扑克牌中的顺子 | 1 |
-| 字节跳动 | 测试 | 468\. 验证IP地址 | 1 |
-| 字节跳动 | 测试 | 344\. 反转字符串 | 1 |
-| 字节跳动 | 测试 | 862\. 和至少为 K 的最短子数组 | 1 |
-| 字节跳动 | 测试 | 70\. 爬楼梯 | 1 |
-| 字节跳动 | 测试 | 76\. 最小覆盖子串 | 1 |
-| 字节跳动 | 测试 | 796\. 旋转字符串 | 1 |
-| 字节跳动 | 测试 | 215\. 数组中的第K个最大元素 | 1 |
-| 字节跳动 | 测试 | 704\. 二分查找 | 1 |
-| 字节跳动 | 测试 | 240\. 搜索二维矩阵 II | 1 |
-| 字节跳动 | 测试 | 234\. 回文链表 | 1 |
-| 字节跳动 | 测试 | 32\. 最长有效括号 | 1 |
-| 字节跳动 | 测试 | 162\. 寻找峰值 | 1 |
+# 测试
+我开发的[CodeTop题库](https://codetop.cc)可以按照部门、难度筛选，比markdown更方便查询高频题
+|题目|出现次数|链接|
+|-|-|-|
+|3. 无重复字符的最长子串|28|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|160. 相交链表|11|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
+|206. 反转链表|11|https://leetcode-cn.com/problems/reverse-linked-list|
+|169. 多数元素|11|https://leetcode-cn.com/problems/majority-element|
+|1. 两数之和|10|https://leetcode-cn.com/problems/two-sum|
+|20. 有效的括号|10|https://leetcode-cn.com/problems/valid-parentheses|
+|415. 字符串相加|8|https://leetcode-cn.com/problems/add-strings|
+|239. 滑动窗口最大值|7|https://leetcode-cn.com/problems/sliding-window-maximum|
+|179. 最大数|6|https://leetcode-cn.com/problems/largest-number|
+|25. K 个一组翻转链表|6|https://leetcode-cn.com/problems/reverse-nodes-in-k-group|
+|121. 买卖股票的最佳时机|6|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|5. 最长回文子串|6|https://leetcode-cn.com/problems/longest-palindromic-substring|
+|83. 删除排序链表中的重复元素|6|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list|
+|78. 子集|5|https://leetcode-cn.com/problems/subsets|
+|94. 二叉树的中序遍历|5|https://leetcode-cn.com/problems/binary-tree-inorder-traversal|
+|468. 验证IP地址|5|https://leetcode-cn.com/problems/validate-ip-address|
+|15. 三数之和|5|https://leetcode-cn.com/problems/3sum|
+|141. 环形链表|5|https://leetcode-cn.com/problems/linked-list-cycle|
+|718. 最长重复子数组|5|https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray|
+|64. 最小路径和|4|https://leetcode-cn.com/problems/minimum-path-sum|
+|142. 环形链表 II|4|https://leetcode-cn.com/problems/linked-list-cycle-ii|
+|剑指 Offer 61. 扑克牌中的顺子|4|https://leetcode-cn.com/problems/bu-ke-pai-zhong-de-shun-zi-lcof|
+|62. 不同路径|4|https://leetcode-cn.com/problems/unique-paths|
+|70. 爬楼梯|4|https://leetcode-cn.com/problems/climbing-stairs|
+|110. 平衡二叉树|4|https://leetcode-cn.com/problems/balanced-binary-tree|
+|32. 最长有效括号|4|https://leetcode-cn.com/problems/longest-valid-parentheses|
+|1143. 最长公共子序列|4|https://leetcode-cn.com/problems/longest-common-subsequence|
+|21. 合并两个有序链表|4|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|39. 组合总和|4|https://leetcode-cn.com/problems/combination-sum|
+|56. 合并区间|4|https://leetcode-cn.com/problems/merge-intervals|
+|14. 最长公共前缀|3|https://leetcode-cn.com/problems/longest-common-prefix|
+|剑指 Offer 21. 调整数组顺序使奇数位于偶数前面|3|https://leetcode-cn.com/problems/diao-zheng-shu-zu-shun-xu-shi-qi-shu-wei-yu-ou-shu-qian-mian-lcof|
+|215. 数组中的第K个最大元素|3|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|704. 二分查找|3|https://leetcode-cn.com/problems/binary-search|
+|26. 删除排序数组中的重复项|3|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array|
+|88. 合并两个有序数组|3|https://leetcode-cn.com/problems/merge-sorted-array|
+|124. 二叉树中的最大路径和|3|https://leetcode-cn.com/problems/binary-tree-maximum-path-sum|
+|8. 字符串转换整数 (atoi)|3|https://leetcode-cn.com/problems/string-to-integer-atoi|
+|76. 最小覆盖子串|2|https://leetcode-cn.com/problems/minimum-window-substring|
+|剑指 Offer 39. 数组中出现次数超过一半的数字|2|https://leetcode-cn.com/problems/shu-zu-zhong-chu-xian-ci-shu-chao-guo-yi-ban-de-shu-zi-lcof|
+|146. LRU缓存机制|2|https://leetcode-cn.com/problems/lru-cache|
+|19. 删除链表的倒数第N个节点|2|https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list|
+|543. 二叉树的直径|2|https://leetcode-cn.com/problems/diameter-of-binary-tree|
+|240. 搜索二维矩阵 II|2|https://leetcode-cn.com/problems/search-a-2d-matrix-ii|
+|162. 寻找峰值|2|https://leetcode-cn.com/problems/find-peak-element|
+|125. 验证回文串|2|https://leetcode-cn.com/problems/valid-palindrome|
+|268. 缺失数字|2|https://leetcode-cn.com/problems/missing-number|
+|42. 接雨水|2|https://leetcode-cn.com/problems/trapping-rain-water|
+|198. 打家劫舍|2|https://leetcode-cn.com/problems/house-robber|
+|242. 有效的字母异位词|2|https://leetcode-cn.com/problems/valid-anagram|
+|151. 翻转字符串里的单词|2|https://leetcode-cn.com/problems/reverse-words-in-a-string|
+|103. 二叉树的锯齿形层次遍历|2|https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal|
+|剑指 Offer 10- II. 青蛙跳台阶问题|2|https://leetcode-cn.com/problems/qing-wa-tiao-tai-jie-wen-ti-lcof|
+|470. 用 Rand7() 实现 Rand10()|2|https://leetcode-cn.com/problems/implement-rand10-using-rand7|
+|93. 复原IP地址|2|https://leetcode-cn.com/problems/restore-ip-addresses|
+|283. 移动零|2|https://leetcode-cn.com/problems/move-zeroes|
+|补充题11. 翻转URL字符串里的单词|2||
+|350. 两个数组的交集 II|1|https://leetcode-cn.com/problems/intersection-of-two-arrays-ii|
+|51. N皇后|1|https://leetcode-cn.com/problems/n-queens|
+|1201. 丑数 III|1|https://leetcode-cn.com/problems/ugly-number-iii|
+|344. 反转字符串|1|https://leetcode-cn.com/problems/reverse-string|
+|862. 和至少为 K 的最短子数组|1|https://leetcode-cn.com/problems/shortest-subarray-with-sum-at-least-k|
+|236. 二叉树的最近公共祖先|1|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree|
+|9. 回文数|1|https://leetcode-cn.com/problems/palindrome-number|
+|405. 数字转换为十六进制数|1|https://leetcode-cn.com/problems/convert-a-number-to-hexadecimal|
+|200. 岛屿数量|1|https://leetcode-cn.com/problems/number-of-islands|
+|796. 旋转字符串|1|https://leetcode-cn.com/problems/rotate-string|
+|234. 回文链表|1|https://leetcode-cn.com/problems/palindrome-linked-list|
+|41. 缺失的第一个正数|1|https://leetcode-cn.com/problems/first-missing-positive|
+|498. 对角线遍历|1|https://leetcode-cn.com/problems/diagonal-traverse|
+|49. 字母异位词分组|1|https://leetcode-cn.com/problems/group-anagrams|
+|79. 单词搜索|1|https://leetcode-cn.com/problems/word-search|
+|232. 用栈实现队列|1|https://leetcode-cn.com/problems/implement-queue-using-stacks|
+|97. 交错字符串|1|https://leetcode-cn.com/problems/interleaving-string|
+|154. 寻找旋转排序数组中的最小值 II|1|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array-ii|
+|113. 路径总和 II|1|https://leetcode-cn.com/problems/path-sum-ii|
+|443. 压缩字符串|1|https://leetcode-cn.com/problems/string-compression|
+|680. 验证回文字符串 Ⅱ|1|https://leetcode-cn.com/problems/valid-palindrome-ii|
+|53. 最大子序和|1|https://leetcode-cn.com/problems/maximum-subarray|
+|300. 最长上升子序列|1|https://leetcode-cn.com/problems/longest-increasing-subsequence|
+|31. 下一个排列|1|https://leetcode-cn.com/problems/next-permutation|
+|剑指 Offer 22. 链表中倒数第k个节点|1|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
+|224. 基本计算器|1|https://leetcode-cn.com/problems/basic-calculator|
+|122. 买卖股票的最佳时机 II|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-ii|
+|补充题1. 排序奇升偶降链表|1|https://mp.weixin.qq.com/s/0WVa2wIAeG0nYnVndZiEXQ|
+|958. 二叉树的完全性检验|1|https://leetcode-cn.com/problems/check-completeness-of-a-binary-tree|
+|557. 反转字符串中的单词 III|1|https://leetcode-cn.com/problems/reverse-words-in-a-string-iii|
+|22. 括号生成|1|https://leetcode-cn.com/problems/generate-parentheses|
+|459. 重复的子字符串|1|https://leetcode-cn.com/problems/repeated-substring-pattern|
+|102. 二叉树的层序遍历|1|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|143. 重排链表|1|https://leetcode-cn.com/problems/reorder-list|
+|剑指 Offer 27. 二叉树的镜像|1|https://leetcode-cn.com/problems/er-cha-shu-de-jing-xiang-lcof|
+|补充题5. 手撕归并排序|1|https://leetcode-cn.com/problems/sort-an-array|
+|226. 翻转二叉树|1|https://leetcode-cn.com/problems/invert-binary-tree|
+|144. 二叉树的前序遍历|1|https://leetcode-cn.com/problems/binary-tree-preorder-traversal|
+|92. 反转链表 II|1|https://leetcode-cn.com/problems/reverse-linked-list-ii|
+|191. 位1的个数|1|https://leetcode-cn.com/problems/number-of-1-bits|
+|33. 搜索旋转排序数组|1|https://leetcode-cn.com/problems/search-in-rotated-sorted-array|
+|213. 打家劫舍 II|1|https://leetcode-cn.com/problems/house-robber-ii|
+|11. 盛最多水的容器|1|https://leetcode-cn.com/problems/container-with-most-water|
+|61. 旋转链表|1|https://leetcode-cn.com/problems/rotate-list|
+|18. 四数之和|1|https://leetcode-cn.com/problems/4sum|
+|2. 两数相加|1|https://leetcode-cn.com/problems/add-two-numbers|
+|剑指 Offer 62. 圆圈中最后剩下的数字|1|https://leetcode-cn.com/problems/yuan-quan-zhong-zui-hou-sheng-xia-de-shu-zi-lcof|
+|231. 2的幂|1|https://leetcode-cn.com/problems/power-of-two|
+|补充题4. 手撕快速排序|1|https://leetcode-cn.com/problems/sort-an-array|
+|136. 只出现一次的数字|1|https://leetcode-cn.com/problems/single-number|
+|101. 对称二叉树|1|https://leetcode-cn.com/problems/symmetric-tree|
+|570. 至少有5名直接下属的经理|1|https://leetcode-cn.com/problems/managers-with-at-least-5-direct-reports|
+|82. 删除排序链表中的重复元素 II|1|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list-ii|
+|950. 按递增顺序显示卡牌|1|https://leetcode-cn.com/problems/reveal-cards-in-increasing-order|
+|剑指 Offer 11. 旋转数组的最小数字|1|https://leetcode-cn.com/problems/xuan-zhuan-shu-zu-de-zui-xiao-shu-zi-lcof|
+|199. 二叉树的右视图|1|https://leetcode-cn.com/problems/binary-tree-right-side-view|
+|补充题6. 手撕堆排序|1|https://leetcode-cn.com/problems/sort-an-array|
+|738. 单调递增的数字|1|https://leetcode-cn.com/problems/monotone-increasing-digits|
+|745. 前缀和后缀搜索|1|https://leetcode-cn.com/problems/prefix-and-suffix-search|
+Software Engineer
+|题目|出现次数|链接|
+|-|-|-|
+|146. LRU缓存机制|2|https://leetcode-cn.com/problems/lru-cache|
+|80. 删除排序数组中的重复项 II|1|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array-ii|
+|76. 最小覆盖子串|1|https://leetcode-cn.com/problems/minimum-window-substring|
+|215. 数组中的第K个最大元素|1|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|1. 两数之和|1|https://leetcode-cn.com/problems/two-sum|
+|704. 二分查找|1|https://leetcode-cn.com/problems/binary-search|
+|232. 用栈实现队列|1|https://leetcode-cn.com/problems/implement-queue-using-stacks|
+|165. 比较版本号|1|https://leetcode-cn.com/problems/compare-version-numbers|
+|470. 用 Rand7() 实现 Rand10()|1|https://leetcode-cn.com/problems/implement-rand10-using-rand7|
+|149. 直线上最多的点数|1|https://leetcode-cn.com/problems/max-points-on-a-line|
diff --git a/img/leetcodetop.png b/img/leetcodetop.png
deleted file mode 100644
index 05e8978..0000000
Binary files a/img/leetcodetop.png and /dev/null differ
diff --git a/img/wechat.png b/img/wechat.png
new file mode 100644
index 0000000..c000c72
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diff --git a/kuaishou/algorithm.md b/kuaishou/algorithm.md
index 67683cc..26c5974 100644
--- a/kuaishou/algorithm.md
+++ b/kuaishou/algorithm.md
@@ -1,8 +1,22 @@
-| 公司 | 岗位 | 题目 | 频度 |
-|----|----|------------------|-------|
-| 快手 | 算法 | 23. 合并K个排序链表 | 1 |
-| 快手 | 算法 | 199. 二叉树的右视图 | 1 |
-| 快手 | 算法 | 300. 最长上升子序列 | 1（+1） |
-| 快手 | 算法 | 103. 二叉树的锯齿形层次遍历 | 1（+1） |
-| 快手 | 算法 | 322. 零钱兑换 | 1（+1） |
-| 快手 | 算法 | 206. 反转链表 | 1（+1） |
+# 算法
+
+|题目|出现次数|链接|
+|-|-|-|
+|103. 二叉树的锯齿形层次遍历|2|https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal|
+|72. 编辑距离|2|https://leetcode-cn.com/problems/edit-distance|
+|46. 全排列|2|https://leetcode-cn.com/problems/permutations|
+|23. 合并K个排序链表|2|https://leetcode-cn.com/problems/merge-k-sorted-lists|
+|206. 反转链表|2|https://leetcode-cn.com/problems/reverse-linked-list|
+|144. 二叉树的前序遍历|1|https://leetcode-cn.com/problems/binary-tree-preorder-traversal|
+|15. 三数之和|1|https://leetcode-cn.com/problems/3sum|
+|补充题8. 计算数组的小和|1|https://mp.weixin.qq.com/s/0ih4W6nawzFUPSj3GOnYTQ|
+|300. 最长上升子序列|1|https://leetcode-cn.com/problems/longest-increasing-subsequence|
+|199. 二叉树的右视图|1|https://leetcode-cn.com/problems/binary-tree-right-side-view|
+|202. 快乐数|1|https://leetcode-cn.com/problems/happy-number|
+|268. 缺失数字|1|https://leetcode-cn.com/problems/missing-number|
+|121. 买卖股票的最佳时机|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|补充题4. 手撕快速排序|1||
+|102. 二叉树的层序遍历|1|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|236. 二叉树的最近公共祖先|1|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree|
+|322. 零钱兑换|1|https://leetcode-cn.com/problems/coin-change|
+|226. 翻转二叉树|1|https://leetcode-cn.com/problems/invert-binary-tree|
\ No newline at end of file
diff --git a/kuaishou/backend.md b/kuaishou/backend.md
index 8b474f9..42d0726 100644
--- a/kuaishou/backend.md
+++ b/kuaishou/backend.md
@@ -1,73 +1,140 @@
-| 公司 | 岗位 | 算法题 | 频度 |
-|----|----|----------------------------------|-------|
-| 快手 | 后端 | 206. 反转链表 | 7（+1） |
-| 快手 | 后端 | 146. LRU缓存机制 | 6（+5） |
-| 快手 | 后端 | 215. 数组中的第K个最大元素 | 5（+3） |
-| 快手 | 后端 | 92. 反转链表 II | 4 |
-| 快手 | 后端 | 136. 只出现一次的数字 | 4（+3） |
-| 快手 | 后端 | 128. 最长连续序列 | 3 |
-| 快手 | 后端 | 剑指 Offer 10- II. 青蛙跳台阶问题 | 3 |
-| 快手 | 后端 | 3. 无重复字符的最长子串 | 3（+2） |
-| 快手 | 后端 | 151. 翻转字符串里的单词 | 3（+3） |
-| 快手 | 后端 | 103. 二叉树的锯齿形层次遍历 | 3（+3） |
-| 快手 | 后端 | 15. 三数之和 | 2（+） |
-| 快手 | 后端 | 剑指 Offer 55 - I. 二叉树的深度 | 2 |
-| 快手 | 后端 | 20. 有效的括号 | 2 |
-| 快手 | 后端 | 33. 搜索旋转排序数组 | 2（+1） |
-| 快手 | 后端 | 21. 合并两个有序链表 | 2 |
-| 快手 | 后端 | 剑指 Offer 22. 链表中倒数第k个节点 | 2 |
-| 快手 | 后端 | 剑指 Offer 21. 调整数组顺序使奇数位于偶数前面 | 2 |
-| 快手 | 后端 | 剑指 Offer 18. 删除链表的节点 | 2（+2） |
-| 快手 | 后端 | 141. 环形链表 | 2 |
-| 快手 | 后端 | 88. 合并两个有序数组 | 2（+1） |
-| 快手 | 后端 | 204. 计数质数 | 1 |
-| 快手 | 后端 | 470. 用 Rand7() 实现 Rand10() | 1 |
-| 快手 | 后端 | 54. 螺旋矩阵 | 1 |
-| 快手 | 后端 | 199. 二叉树的右视图 | 1 |
-| 快手 | 后端 | 207. 课程表 | 1 |
-| 快手 | 后端 | 210. 课程表 II | 1 |
-| 快手 | 后端 | 543. 二叉树的直径 | 1 |
-| 快手 | 后端 | 剑指 Offer 12. 矩阵中的路径 | 1 |
-| 快手 | 后端 | 105. 从前序与中序遍历序列构造二叉树 | 1 |
-| 快手 | 后端 | 剑指 Offer 42. 连续子数组的最大和 | 1 |
-| 快手 | 后端 | 83. 删除排序链表中的重复元素 | 1 |
-| 快手 | 后端 | 34. 在排序数组中查找元素的第一个和最后一个位置 | 1 |
-| 快手 | 后端 | 剑指 Offer 24. 反转链表 | 1 |
-| 快手 | 后端 | 2. 两数相加 | 1 |
-| 快手 | 后端 | 1312. 让字符串成为回文串的最少插入次数 | 1 |
-| 快手 | 后端 | 1156. 单字符重复子串的最大长度 | 1 |
-| 快手 | 后端 | 150. 逆波兰表达式求值 | 1 |
-| 快手 | 后端 | 220. 存在重复元素 III | 1 |
-| 快手 | 后端 | 104. 二叉树的最大深度 | 1 |
-| 快手 | 后端 | 426. 将二叉搜索树转换成排序的双向链表 | 1 |
-| 快手 | 后端 | 剑指 Offer 09. 用两个栈实现队列 | 1 |
-| 快手 | 后端 | 22. 括号生成 | 1 |
-| 快手 | 后端 | 321. 拼接最大数 | 1 |
-| 快手 | 后端 | 24. 两两交换链表中的节点 | 1 |
-| 快手 | 后端 | 189. 旋转数组 | 1 |
-| 快手 | 后端 | 剑指 Offer 43. 1～n整数中1出现的次数 | 1 |
-| 快手 | 后端 | 137. 只出现一次的数字 II | 1 |
-| 快手 | 后端 | 572. 另一个树的子树 | 1 |
-| 快手 | 后端 | 1464. 数组中两元素的最大乘积 | 1 |
-| 快手 | 后端 | 剑指 Offer 10- I. 斐波那契数列 | 1 |
-| 快手 | 后端 | 509. 斐波那契数 | 1 |
-| 快手 | 后端 | 468. 验证IP地址 | 1 |
-| 快手 | 后端 | 剑指 Offer 32 - III. 从上到下打印二叉树 III | 1 |
-| 快手 | 后端 | 剑指 Offer 25. 合并两个排序的链表 | 1 |
-| 快手 | 后端 | 236. 二叉树的最近公共祖先 | 1 |
-| 快手 | 后端 | 43. 字符串相乘 | 1（+1） |
-| 快手 | 后端 | 40. 组合总和 II | 1（+1） |
-| 快手 | 后端 | 面试题 08.11. 硬币 | 1 |
-| 快手 | 后端 | 94. 二叉树的中序遍历 | 1 |
-| 快手 | 后端 | 剑指 Offer 36. 二叉搜索树与双向链表 | 1（+1） |
-| 快手 | 后端 | 48. 旋转图像 | 1（+1） |
-| 快手 | 后端 | 142. 环形链表 II | 1（+1） |
-| 快手 | 后端 | 235. 二叉搜索树的最近公共祖先 | 1 |
-| 快手 | 后端 | 169. 多数元素 | 1 |
-| 快手 | 后端 | 226. 翻转二叉树 | 1 |
-| 快手 | 后端 | 16. 最接近的三数之和 | 1 |
-| 快手 | 后端 | 剑指 Offer 51. 数组中的逆序对 | 1 |
-| 快手 | 后端 | 9. 回文数 | 1 |
-| 快手 | 后端 | 1. 两数之和 | 1 |
-| 快手 | 后端 | 111. 二叉树的最小深度 | 1 |
-| 快手 | 后端 | 144. 二叉树的前序遍历 | 1 |
+# 后端
+|题目|出现次数|链接|
+|-|-|-|
+|206. 反转链表|15|https://leetcode-cn.com/problems/reverse-linked-list|
+|160. 相交链表|8|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
+|补充题4. 手撕快速排序|7||
+|146. LRU缓存机制|7|https://leetcode-cn.com/problems/lru-cache|
+|21. 合并两个有序链表|7|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|215. 数组中的第K个最大元素|7|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|88. 合并两个有序数组|6|https://leetcode-cn.com/problems/merge-sorted-array|
+|141. 环形链表|5|https://leetcode-cn.com/problems/linked-list-cycle|
+|92. 反转链表 II|5|https://leetcode-cn.com/problems/reverse-linked-list-ii|
+|151. 翻转字符串里的单词|5|https://leetcode-cn.com/problems/reverse-words-in-a-string|
+|2. 两数相加|5|https://leetcode-cn.com/problems/add-two-numbers|
+|3. 无重复字符的最长子串|5|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|155. 最小栈|4|https://leetcode-cn.com/problems/min-stack|
+|144. 二叉树的前序遍历|4|https://leetcode-cn.com/problems/binary-tree-preorder-traversal|
+|136. 只出现一次的数字|4|https://leetcode-cn.com/problems/single-number|
+|34. 在排序数组中查找元素的第一个和最后一个位置|4|https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array|
+|20. 有效的括号|4|https://leetcode-cn.com/problems/valid-parentheses|
+|148. 排序链表|4|https://leetcode-cn.com/problems/sort-list|
+|24. 两两交换链表中的节点|4|https://leetcode-cn.com/problems/swap-nodes-in-pairs|
+|415. 字符串相加|4|https://leetcode-cn.com/problems/add-strings|
+|142. 环形链表 II|3|https://leetcode-cn.com/problems/linked-list-cycle-ii|
+|46. 全排列|3|https://leetcode-cn.com/problems/permutations|
+|剑指 Offer 10- II. 青蛙跳台阶问题|3|https://leetcode-cn.com/problems/qing-wa-tiao-tai-jie-wen-ti-lcof|
+|剑指 Offer 22. 链表中倒数第k个节点|3|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
+|150. 逆波兰表达式求值|3|https://leetcode-cn.com/problems/evaluate-reverse-polish-notation|
+|94. 二叉树的中序遍历|3|https://leetcode-cn.com/problems/binary-tree-inorder-traversal|
+|128. 最长连续序列|3|https://leetcode-cn.com/problems/longest-consecutive-sequence|
+|补充题8. 计算数组的小和|3|https://mp.weixin.qq.com/s/0ih4W6nawzFUPSj3GOnYTQ|
+|121. 买卖股票的最佳时机|3|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|补充题5. 手撕归并排序|3||
+|69. x 的平方根|3|https://leetcode-cn.com/problems/sqrtx|
+|103. 二叉树的锯齿形层次遍历|3|https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal|
+|102. 二叉树的层序遍历|3|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|剑指 Offer 51. 数组中的逆序对|3|https://leetcode-cn.com/problems/shu-zu-zhong-de-ni-xu-dui-lcof|
+|剑指 Offer 21. 调整数组顺序使奇数位于偶数前面|3|https://leetcode-cn.com/problems/diao-zheng-shu-zu-shun-xu-shi-qi-shu-wei-yu-ou-shu-qian-mian-lcof|
+|76. 最小覆盖子串|3|https://leetcode-cn.com/problems/minimum-window-substring|
+|15. 三数之和|2|https://leetcode-cn.com/problems/3sum|
+|145. 二叉树的后序遍历|2|https://leetcode-cn.com/problems/binary-tree-postorder-traversal|
+|543. 二叉树的直径|2|https://leetcode-cn.com/problems/diameter-of-binary-tree|
+|845. 数组中的最长山脉|2|https://leetcode-cn.com/problems/longest-mountain-in-array|
+|剑指 Offer 18. 删除链表的节点|2|https://leetcode-cn.com/problems/shan-chu-lian-biao-de-jie-dian-lcof|
+|1143. 最长公共子序列|2|https://leetcode-cn.com/problems/longest-common-subsequence|
+|剑指 Offer 19. 正则表达式匹配|2|https://leetcode-cn.com/problems/zheng-ze-biao-da-shi-pi-pei-lcof|
+|509. 斐波那契数|2|https://leetcode-cn.com/problems/fibonacci-number|
+|226. 翻转二叉树|2|https://leetcode-cn.com/problems/invert-binary-tree|
+|93. 复原IP地址|2|https://leetcode-cn.com/problems/restore-ip-addresses|
+|1047. 删除字符串中的所有相邻重复项|2|https://leetcode-cn.com/problems/remove-all-adjacent-duplicates-in-string|
+|43. 字符串相乘|2|https://leetcode-cn.com/problems/multiply-strings|
+|113. 路径总和 II|2|https://leetcode-cn.com/problems/path-sum-ii|
+|718. 最长重复子数组|2|https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray|
+|剑指 Offer 55 - I. 二叉树的深度|2|https://leetcode-cn.com/problems/er-cha-shu-de-shen-du-lcof|
+|78. 子集|2|https://leetcode-cn.com/problems/subsets|
+|498. 对角线遍历|2|https://leetcode-cn.com/problems/diagonal-traverse|
+|122. 买卖股票的最佳时机 II|2|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-ii|
+|剑指 Offer 36. 二叉搜索树与双向链表|2|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-yu-shuang-xiang-lian-biao-lcof|
+|200. 岛屿数量|2|https://leetcode-cn.com/problems/number-of-islands|
+|33. 搜索旋转排序数组|2|https://leetcode-cn.com/problems/search-in-rotated-sorted-array|
+|54. 螺旋矩阵|2|https://leetcode-cn.com/problems/spiral-matrix|
+|225. 用队列实现栈|2|https://leetcode-cn.com/problems/implement-stack-using-queues|
+|23. 合并K个排序链表|2|https://leetcode-cn.com/problems/merge-k-sorted-lists|
+|104. 二叉树的最大深度|2|https://leetcode-cn.com/problems/maximum-depth-of-binary-tree|
+|318. 最大单词长度乘积|1|https://leetcode-cn.com/problems/maximum-product-of-word-lengths|
+|321. 拼接最大数|1|https://leetcode-cn.com/problems/create-maximum-number|
+|面试题 17.01. 不用加号的加法|1|https://leetcode-cn.com/problems/add-without-plus-lcci|
+|468. 验证IP地址|1|https://leetcode-cn.com/problems/validate-ip-address|
+|16. 最接近的三数之和|1|https://leetcode-cn.com/problems/3sum-closest|
+|239. 滑动窗口最大值|1|https://leetcode-cn.com/problems/sliding-window-maximum|
+|470. 用 Rand7() 实现 Rand10()|1|https://leetcode-cn.com/problems/implement-rand10-using-rand7|
+|8. 字符串转换整数 (atoi)|1|https://leetcode-cn.com/problems/string-to-integer-atoi|
+|剑指 Offer 24. 反转链表|1|https://leetcode-cn.com/problems/fan-zhuan-lian-biao-lcof|
+|67. 二进制求和|1|https://leetcode-cn.com/problems/add-binary|
+|450. 删除二叉搜索树中的节点|1|https://leetcode-cn.com/problems/delete-node-in-a-bst|
+|322. 零钱兑换|1|https://leetcode-cn.com/problems/coin-change|
+|220. 存在重复元素 III|1|https://leetcode-cn.com/problems/contains-duplicate-iii|
+|剑指 Offer 04. 二维数组中的查找|1|https://leetcode-cn.com/problems/er-wei-shu-zu-zhong-de-cha-zhao-lcof|
+|48. 旋转图像|1|https://leetcode-cn.com/problems/rotate-image|
+|337. 打家劫舍 III|1|https://leetcode-cn.com/problems/house-robber-iii|
+|191. 位1的个数|1|https://leetcode-cn.com/problems/number-of-1-bits|
+|22. 括号生成|1|https://leetcode-cn.com/problems/generate-parentheses|
+|5. 最长回文子串|1|https://leetcode-cn.com/problems/longest-palindromic-substring|
+|224. 基本计算器|1|https://leetcode-cn.com/problems/basic-calculator|
+|701. 二叉搜索树中的插入操作|1|https://leetcode-cn.com/problems/insert-into-a-binary-search-tree|
+|111. 二叉树的最小深度|1|https://leetcode-cn.com/problems/minimum-depth-of-binary-tree|
+|110. 平衡二叉树|1|https://leetcode-cn.com/problems/balanced-binary-tree|
+|210. 课程表 II|1|https://leetcode-cn.com/problems/course-schedule-ii|
+|480. 滑动窗口中位数|1|https://leetcode-cn.com/problems/sliding-window-median|
+|137. 只出现一次的数字 II|1|https://leetcode-cn.com/problems/single-number-ii|
+|剑指 Offer 41. 数据流中的中位数|1|https://leetcode-cn.com/problems/shu-ju-liu-zhong-de-zhong-wei-shu-lcof|
+|42. 接雨水|1|https://leetcode-cn.com/problems/trapping-rain-water|
+|82. 删除排序链表中的重复元素 II|1|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list-ii|
+|230. 二叉搜索树中第K小的元素|1|https://leetcode-cn.com/problems/kth-smallest-element-in-a-bst|
+|剑指 Offer 10- I. 斐波那契数列|1|https://leetcode-cn.com/problems/fei-bo-na-qi-shu-lie-lcof|
+|169. 多数元素|1|https://leetcode-cn.com/problems/majority-element|
+|59. 螺旋矩阵 II|1|https://leetcode-cn.com/problems/spiral-matrix-ii|
+|74. 搜索二维矩阵|1|https://leetcode-cn.com/problems/search-a-2d-matrix|
+|236. 二叉树的最近公共祖先|1|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree|
+|1. 两数之和|1|https://leetcode-cn.com/problems/two-sum|
+|75. 颜色分类|1|https://leetcode-cn.com/problems/sort-colors|
+|207. 课程表|1|https://leetcode-cn.com/problems/course-schedule|
+|64. 最小路径和|1|https://leetcode-cn.com/problems/minimum-path-sum|
+|1156. 单字符重复子串的最大长度|1|https://leetcode-cn.com/problems/swap-for-longest-repeated-character-substring|
+|剑指 Offer 43. 1～n整数中1出现的次数|1|https://leetcode-cn.com/problems/1nzheng-shu-zhong-1chu-xian-de-ci-shu-lcof|
+|14. 最长公共前缀|1|https://leetcode-cn.com/problems/longest-common-prefix|
+|面试题 16.06. 最小差|1|https://leetcode-cn.com/problems/smallest-difference-lcci|
+|1493. 删掉一个元素以后全为 1 的最长子数组|1|https://leetcode-cn.com/problems/longest-subarray-of-1s-after-deleting-one-element|
+|剑指 Offer 09. 用两个栈实现队列|1|https://leetcode-cn.com/problems/yong-liang-ge-zhan-shi-xian-dui-lie-lcof|
+|1027. 最长等差数列|1|https://leetcode-cn.com/problems/longest-arithmetic-subsequence|
+|1464. 数组中两元素的最大乘积|1|https://leetcode-cn.com/problems/maximum-product-of-two-elements-in-an-array|
+|235. 二叉搜索树的最近公共祖先|1|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-search-tree|
+|204. 计数质数|1|https://leetcode-cn.com/problems/count-primes|
+|83. 删除排序链表中的重复元素|1|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list|
+|958. 二叉树的完全性检验|1|https://leetcode-cn.com/problems/check-completeness-of-a-binary-tree|
+|312. 戳气球|1|https://leetcode-cn.com/problems/burst-balloons|
+|剑指 Offer 25. 合并两个排序的链表|1|https://leetcode-cn.com/problems/he-bing-liang-ge-pai-xu-de-lian-biao-lcof|
+|9. 回文数|1|https://leetcode-cn.com/problems/palindrome-number|
+|25. K 个一组翻转链表|1|https://leetcode-cn.com/problems/reverse-nodes-in-k-group|
+|199. 二叉树的右视图|1|https://leetcode-cn.com/problems/binary-tree-right-side-view|
+|240. 搜索二维矩阵 II|1|https://leetcode-cn.com/problems/search-a-2d-matrix-ii|
+|1312. 让字符串成为回文串的最少插入次数|1|https://leetcode-cn.com/problems/minimum-insertion-steps-to-make-a-string-palindrome|
+|6. Z 字形变换|1|https://leetcode-cn.com/problems/zigzag-conversion|
+|189. 旋转数组|1|https://leetcode-cn.com/problems/rotate-array|
+|19. 删除链表的倒数第N个节点|1|https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list|
+|53. 最大子序和|1|https://leetcode-cn.com/problems/maximum-subarray|
+|232. 用栈实现队列|1|https://leetcode-cn.com/problems/implement-queue-using-stacks|
+|572. 另一个树的子树|1|https://leetcode-cn.com/problems/subtree-of-another-tree|
+|704. 二分查找|1|https://leetcode-cn.com/problems/binary-search|
+|238. 除自身以外数组的乘积|1|https://leetcode-cn.com/problems/product-of-array-except-self|
+|剑指 Offer 42. 连续子数组的最大和|1|https://leetcode-cn.com/problems/lian-xu-zi-shu-zu-de-zui-da-he-lcof|
+|138. 复制带随机指针的链表|1|https://leetcode-cn.com/problems/copy-list-with-random-pointer|
+|剑指 Offer 32 - III. 从上到下打印二叉树 III|1|https://leetcode-cn.com/problems/cong-shang-dao-xia-da-yin-er-cha-shu-iii-lcof|
+|129. 求根到叶子节点数字之和|1|https://leetcode-cn.com/problems/sum-root-to-leaf-numbers|
+|101. 对称二叉树|1|https://leetcode-cn.com/problems/symmetric-tree|
+|540. 有序数组中的单一元素|1|https://leetcode-cn.com/problems/single-element-in-a-sorted-array|
+|剑指 Offer 12. 矩阵中的路径|1|https://leetcode-cn.com/problems/ju-zhen-zhong-de-lu-jing-lcof|
+|208. 实现 Trie (前缀树)|1|https://leetcode-cn.com/problems/implement-trie-prefix-tree|
+|剑指 Offer 40. 最小的k个数|1|https://leetcode-cn.com/problems/zui-xiao-de-kge-shu-lcof|
+|40. 组合总和 II|1|https://leetcode-cn.com/problems/combination-sum-ii|
\ No newline at end of file
diff --git a/kuaishou/client.md b/kuaishou/client.md
index 5ace3ff..640c106 100644
--- a/kuaishou/client.md
+++ b/kuaishou/client.md
@@ -1,10 +1,42 @@
-| 公司 | 岗位 | 题目 | 频次 |
-|----|-----|---------------------------|----|
-| 快手 | 客户端 | 206\. 反转链表 | 2 |
-| 快手 | 客户端 | 剑指 Offer 64\. 求1\+2\+…\+n | 1 |
-| 快手 | 客户端 | 144\. 二叉树的前序遍历 | 1 |
-| 快手 | 客户端 | 11\. 盛最多水的容器 | 1 |
-| 快手 | 客户端 | 21\. 合并两个有序链表 | 1 |
-| 快手 | 客户端 | 142\. 环形链表 II | 1 |
-| 快手 | 客户端 | 剑指 Offer 24\. 反转链表 | 1 |
-| 快手 | 客户端 | 69. x 的平方根 | 1（+1） |
+# 客户端
+
+|题目|出现次数|链接|
+|-|-|-|
+|206. 反转链表|6|https://leetcode-cn.com/problems/reverse-linked-list|
+|142. 环形链表 II|3|https://leetcode-cn.com/problems/linked-list-cycle-ii|
+|21. 合并两个有序链表|2|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|78. 子集|2|https://leetcode-cn.com/problems/subsets|
+|103. 二叉树的锯齿形层次遍历|2|https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal|
+|144. 二叉树的前序遍历|2|https://leetcode-cn.com/problems/binary-tree-preorder-traversal|
+|110. 平衡二叉树|2|https://leetcode-cn.com/problems/balanced-binary-tree|
+|剑指 Offer 21. 调整数组顺序使奇数位于偶数前面|2|https://leetcode-cn.com/problems/diao-zheng-shu-zu-shun-xu-shi-qi-shu-wei-yu-ou-shu-qian-mian-lcof|
+|102. 二叉树的层序遍历|2|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|704. 二分查找|2|https://leetcode-cn.com/problems/binary-search|
+|300. 最长上升子序列|1|https://leetcode-cn.com/problems/longest-increasing-subsequence|
+|121. 买卖股票的最佳时机|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|1. 两数之和|1|https://leetcode-cn.com/problems/two-sum|
+|283. 移动零|1|https://leetcode-cn.com/problems/move-zeroes|
+|415. 字符串相加|1|https://leetcode-cn.com/problems/add-strings|
+|200. 岛屿数量|1|https://leetcode-cn.com/problems/number-of-islands|
+|3. 无重复字符的最长子串|1|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|11. 盛最多水的容器|1|https://leetcode-cn.com/problems/container-with-most-water|
+|167. 两数之和 II - 输入有序数组|1|https://leetcode-cn.com/problems/two-sum-ii-input-array-is-sorted|
+|470. 用 Rand7() 实现 Rand10()|1|https://leetcode-cn.com/problems/implement-rand10-using-rand7|
+|189. 旋转数组|1|https://leetcode-cn.com/problems/rotate-array|
+|459. 重复的子字符串|1|https://leetcode-cn.com/problems/repeated-substring-pattern|
+|129. 求根到叶子节点数字之和|1|https://leetcode-cn.com/problems/sum-root-to-leaf-numbers|
+|312. 戳气球|1|https://leetcode-cn.com/problems/burst-balloons|
+|69. x 的平方根|1|https://leetcode-cn.com/problems/sqrtx|
+|718. 最长重复子数组|1|https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray|
+|24. 两两交换链表中的节点|1|https://leetcode-cn.com/problems/swap-nodes-in-pairs|
+|146. LRU缓存机制|1|https://leetcode-cn.com/problems/lru-cache|
+|剑指 Offer 64. 求1+2+…+n|1|https://leetcode-cn.com/problems/qiu-12n-lcof|
+|70. 爬楼梯|1|https://leetcode-cn.com/problems/climbing-stairs|
+|剑指 Offer 24. 反转链表|1|https://leetcode-cn.com/problems/fan-zhuan-lian-biao-lcof|
+|232. 用栈实现队列|1|https://leetcode-cn.com/problems/implement-queue-using-stacks|
+|919. 完全二叉树插入器|1|https://leetcode-cn.com/problems/complete-binary-tree-inserter|
+|19. 删除链表的倒数第N个节点|1|https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list|
+|109. 有序链表转换二叉搜索树|1|https://leetcode-cn.com/problems/convert-sorted-list-to-binary-search-tree|
+|104. 二叉树的最大深度|1|https://leetcode-cn.com/problems/maximum-depth-of-binary-tree|
+|53. 最大子序和|1|https://leetcode-cn.com/problems/maximum-subarray|
+|补充题4. 手撕快速排序|1||
\ No newline at end of file
diff --git a/kuaishou/data.md b/kuaishou/data.md
index 9d3f724..9f1cd96 100644
--- a/kuaishou/data.md
+++ b/kuaishou/data.md
@@ -1,3 +1,16 @@
-| 公司 | 岗位 | 题目 | 频次 |
-|----|----|------------------------|----|
-| 快手 | 数据 | 剑指 Offer 09\. 用两个栈实现队列 | 1 |
+# 数据研发
+
+|题目|出现次数|链接|
+|-|-|-|
+|5. 最长回文子串|1|https://leetcode-cn.com/problems/longest-palindromic-substring|
+|509. 斐波那契数|1|https://leetcode-cn.com/problems/fibonacci-number|
+|34. 在排序数组中查找元素的第一个和最后一个位置|1|https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array|
+|35. 搜索插入位置|1|https://leetcode-cn.com/problems/search-insert-position|
+|93. 复原IP地址|1|https://leetcode-cn.com/problems/restore-ip-addresses|
+|145. 二叉树的后序遍历|1|https://leetcode-cn.com/problems/binary-tree-postorder-traversal|
+|剑指 Offer 24. 反转链表|1|https://leetcode-cn.com/problems/fan-zhuan-lian-biao-lcof|
+|144. 二叉树的前序遍历|1|https://leetcode-cn.com/problems/binary-tree-preorder-traversal|
+|剑指 Offer 27. 二叉树的镜像|1|https://leetcode-cn.com/problems/er-cha-shu-de-jing-xiang-lcof|
+|剑指 Offer 09. 用两个栈实现队列|1|https://leetcode-cn.com/problems/yong-liang-ge-zhan-shi-xian-dui-lie-lcof|
+|112. 路径总和|1|https://leetcode-cn.com/problems/path-sum|
+|240. 搜索二维矩阵 II|1|https://leetcode-cn.com/problems/search-a-2d-matrix-ii|
\ No newline at end of file
diff --git a/kuaishou/frontend.md b/kuaishou/frontend.md
index 0915862..9855140 100644
--- a/kuaishou/frontend.md
+++ b/kuaishou/frontend.md
@@ -1,6 +1,20 @@
-| 公司 | 岗位 | 题目 | 频次 |
-|----|----|--------------------------|----|
-| 快手 | 前端 | 169\. 多数元素 | 1 |
-| 快手 | 前端 | 剑指 Offer 10\- I\. 斐波那契数列 | 1 |
-| 快手 | 前端 | 509\. 斐波那契数 | 1 |
-| 快手 | 前端 | 704\. 二分查找 | 1 |
+# 前端
+
+|题目|出现次数|链接|
+|-|-|-|
+|88. 合并两个有序数组|2|https://leetcode-cn.com/problems/merge-sorted-array|
+|3. 无重复字符的最长子串|2|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|70. 爬楼梯|2|https://leetcode-cn.com/problems/climbing-stairs|
+|384. 打乱数组|2|https://leetcode-cn.com/problems/shuffle-an-array|
+|104. 二叉树的最大深度|1|https://leetcode-cn.com/problems/maximum-depth-of-binary-tree|
+|206. 反转链表|1|https://leetcode-cn.com/problems/reverse-linked-list|
+|46. 全排列|1|https://leetcode-cn.com/problems/permutations|
+|704. 二分查找|1|https://leetcode-cn.com/problems/binary-search|
+|7. 整数反转|1|https://leetcode-cn.com/problems/reverse-integer|
+|121. 买卖股票的最佳时机|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|509. 斐波那契数|1|https://leetcode-cn.com/problems/fibonacci-number|
+|231. 2的幂|1|https://leetcode-cn.com/problems/power-of-two|
+|剑指 Offer 10- I. 斐波那契数列|1|https://leetcode-cn.com/problems/fei-bo-na-qi-shu-lie-lcof|
+|102. 二叉树的层序遍历|1|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|169. 多数元素|1|https://leetcode-cn.com/problems/majority-element|
+|110. 平衡二叉树|1|https://leetcode-cn.com/problems/balanced-binary-tree|
\ No newline at end of file
diff --git a/kuaishou/latest.md b/kuaishou/latest.md
deleted file mode 100644
index 8862651..0000000
--- a/kuaishou/latest.md
+++ /dev/null
@@ -1,43 +0,0 @@
-以下为快手牛客面经 7.25~8.12汇总后的题目数据。
-
-🎯方便大家刷近期面经，更有针对性地冲击面试。
-
-快手的总数据，请在首页点击具体岗位查看。
-| 公司 | 题目 | 链接 | 频度 |
-|----|---------------------------|-------------------------------------------------------------------------------------------|----|
-| 快手 | 146. LRU缓存机制 | https://leetcode-cn.com/problems/lru-cache/ | 5 |
-| 快手 | 136. 只出现一次的数字 | https://leetcode-cn.com/problems/single-number/ | 3 |
-| 快手 | 151. 翻转字符串里的单词 | https://leetcode-cn.com/problems/reverse-words-in-a-string/ | 3 |
-| 快手 | 103. 二叉树的锯齿形层次遍历 | https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal/ | 3 |
-| 快手 | 215. 数组中的第K个最大元素 | https://leetcode-cn.com/problems/kth-largest-element-in-an-array/ | 3 |
-| 快手 | 剑指 Offer 18. 删除链表的节点 | https://leetcode-cn.com/problems/shan-chu-lian-biao-de-jie-dian-lcof/ | 2 |
-| 快手 | 206. 反转链表 | https://leetcode-cn.com/problems/reverse-linked-list/ | 2 |
-| 快手 | 3. 无重复字符的最长子串 | https://leetcode-cn.com/problems/longest-substring-without-repeating-characters/ | 2 |
-| 快手 | 43. 字符串相乘 | https://leetcode-cn.com/problems/multiply-strings/ | 1 |
-| 快手 | 40. 组合总和 II | https://leetcode-cn.com/problems/combination-sum-ii/ | 1 |
-| 快手 | 415. 字符串相加 | https://leetcode-cn.com/problems/add-strings/ | 1 |
-| 快手 | 88. 合并两个有序数组 | https://leetcode-cn.com/problems/merge-sorted-array/ | 1 |
-| 快手 | 78. 子集 | https://leetcode-cn.com/problems/subsets/ | 1 |
-| 快手 | 面试题 08.11. 硬币 | https://leetcode-cn.com/problems/coin-lcci/ | 1 |
-| 快手 | 94. 二叉树的中序遍历 | https://leetcode-cn.com/problems/binary-tree-inorder-traversal/ | 1 |
-| 快手 | 69. x 的平方根 | https://leetcode-cn.com/problems/sqrtx/ | 1 |
-| 快手 | 剑指 Offer 36. 二叉搜索树与双向链表 | https://leetcode-cn.com/problems/er-cha-sou-suo-shu-yu-shuang-xiang-lian-biao-lcof/ | 1 |
-| 快手 | 48. 旋转图像 | https://leetcode-cn.com/problems/rotate-image/ | 1 |
-| 快手 | 142. 环形链表 II | https://leetcode-cn.com/problems/linked-list-cycle-ii/ | 1 |
-| 快手 | 15. 三数之和 | https://leetcode-cn.com/problems/3sum/ | 1 |
-| 快手 | 20. 有效的括号 | https://leetcode-cn.com/problems/valid-parentheses/ | 1 |
-| 快手 | 232. 用栈实现队列 | https://leetcode-cn.com/problems/implement-queue-using-stacks/ | 1 |
-| 快手 | 235. 二叉搜索树的最近公共祖先 | https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-search-tree/ | 1 |
-| 快手 | 169. 多数元素 | https://leetcode-cn.com/problems/majority-element/ | 1 |
-| 快手 | 300. 最长上升子序列 | https://leetcode-cn.com/problems/longest-increasing-subsequence/ | 1 |
-| 快手 | 226. 翻转二叉树 | https://leetcode-cn.com/problems/invert-binary-tree/ | 1 |
-| 快手 | 16. 最接近的三数之和 | https://leetcode-cn.com/problems/3sum-closest/ | 1 |
-| 快手 | 322. 零钱兑换 | https://leetcode-cn.com/problems/coin-change/ | 1 |
-| 快手 | 剑指 Offer 51. 数组中的逆序对 | https://leetcode-cn.com/problems/shu-zu-zhong-de-ni-xu-dui-lcof/ | 1 |
-| 快手 | 93. 复原IP地址 | https://leetcode-cn.com/problems/restore-ip-addresses/ | 1 |
-| 快手 | 34. 在排序数组中查找元素的第一个和最后一个位置 | https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array/ | 1 |
-| 快手 | 9. 回文数 | https://leetcode-cn.com/problems/palindrome-number/ | 1 |
-| 快手 | 33. 搜索旋转排序数组 | https://leetcode-cn.com/problems/search-in-rotated-sorted-array/ | 1 |
-| 快手 | 1. 两数之和 | https://leetcode-cn.com/problems/two-sum/ | 1 |
-| 快手 | 111. 二叉树的最小深度 | https://leetcode-cn.com/problems/minimum-depth-of-binary-tree/ | 1 |
-| 快手 | 144. 二叉树的前序遍历 | https://leetcode-cn.com/problems/binary-tree-preorder-traversal/ | 1 |
diff --git a/kuaishou/test.md b/kuaishou/test.md
index f459bdb..c082d6c 100644
--- a/kuaishou/test.md
+++ b/kuaishou/test.md
@@ -1,8 +1,22 @@
-| 公司 | 岗位 | 题目 | 频次 |
-|----|----|----------------------------|-------|
-| 快手 | 测试 | 20. 有效的括号 | 2（+1） |
-| 快手 | 测试 | 剑指 Offer 42. 连续子数组的最大和 | 1 |
-| 快手 | 测试 | 剑指 Offer 48. 最长不含重复字符的子字符串 | 1 |
-| 快手 | 测试 | 3. 无重复字符的最长子串 | 1（+1） |
-| 快手 | 测试 | 232. 用栈实现队列 | 1（+1） |
+# 测试
+|题目|出现次数|链接|
+|-|-|-|
+|3. 无重复字符的最长子串|3|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|142. 环形链表 II|2|https://leetcode-cn.com/problems/linked-list-cycle-ii|
+|20. 有效的括号|2|https://leetcode-cn.com/problems/valid-parentheses|
+|53. 最大子序和|1|https://leetcode-cn.com/problems/maximum-subarray|
+|232. 用栈实现队列|1|https://leetcode-cn.com/problems/implement-queue-using-stacks|
+|15. 三数之和|1|https://leetcode-cn.com/problems/3sum|
+|补充题6. 手撕堆排序|1||
+|509. 斐波那契数|1|https://leetcode-cn.com/problems/fibonacci-number|
+|206. 反转链表|1|https://leetcode-cn.com/problems/reverse-linked-list|
+|剑指 Offer 48. 最长不含重复字符的子字符串|1|https://leetcode-cn.com/problems/zui-chang-bu-han-zhong-fu-zi-fu-de-zi-zi-fu-chuan-lcof|
+|143. 重排链表|1|https://leetcode-cn.com/problems/reorder-list|
+|349. 两个数组的交集|1|https://leetcode-cn.com/problems/intersection-of-two-arrays|
+|剑指 Offer 42. 连续子数组的最大和|1|https://leetcode-cn.com/problems/lian-xu-zi-shu-zu-de-zui-da-he-lcof|
+|121. 买卖股票的最佳时机|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|5. 最长回文子串|1|https://leetcode-cn.com/problems/longest-palindromic-substring|
+|39. 组合总和|1|https://leetcode-cn.com/problems/combination-sum|
+|647. 回文子串|1|https://leetcode-cn.com/problems/palindromic-substrings|
+|344. 反转字符串|1|https://leetcode-cn.com/problems/reverse-string|
\ No newline at end of file
diff --git a/meituan/algorithm.md b/meituan/algorithm.md
new file mode 100644
index 0000000..b0f377c
--- /dev/null
+++ b/meituan/algorithm.md
@@ -0,0 +1,42 @@
+# 算法
+若想按部门/难度/题型筛选题目，请进入[CodeTop](https://codetop.cc)查询
+
+|题目|出现次数|链接|
+|-|-|-|
+|补充题4. 手撕快速排序|5|https://leetcode-cn.com/problems/sort-an-array|
+|121. 买卖股票的最佳时机|4|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|215. 数组中的第K个最大元素|4|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|128. 最长连续序列|2|https://leetcode-cn.com/problems/longest-consecutive-sequence|
+|1143. 最长公共子序列|2|https://leetcode-cn.com/problems/longest-common-subsequence|
+|498. 对角线遍历|2|https://leetcode-cn.com/problems/diagonal-traverse|
+|剑指 Offer 65. 不用加减乘除做加法|2|https://leetcode-cn.com/problems/bu-yong-jia-jian-cheng-chu-zuo-jia-fa-lcof|
+|53. 最大子序和|2|https://leetcode-cn.com/problems/maximum-subarray|
+|2. 两数相加|2|https://leetcode-cn.com/problems/add-two-numbers|
+|718. 最长重复子数组|2|https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray|
+|21. 合并两个有序链表|1|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|560. 和为K的子数组|1|https://leetcode-cn.com/problems/subarray-sum-equals-k|
+|5. 最长回文子串|1|https://leetcode-cn.com/problems/longest-palindromic-substring|
+|20. 有效的括号|1|https://leetcode-cn.com/problems/valid-parentheses|
+|94. 二叉树的中序遍历|1|https://leetcode-cn.com/problems/binary-tree-inorder-traversal|
+|104. 二叉树的最大深度|1|https://leetcode-cn.com/problems/maximum-depth-of-binary-tree|
+|69. x 的平方根|1|https://leetcode-cn.com/problems/sqrtx|
+|240. 搜索二维矩阵 II|1|https://leetcode-cn.com/problems/search-a-2d-matrix-ii|
+|76. 最小覆盖子串|1|https://leetcode-cn.com/problems/minimum-window-substring|
+|143. 重排链表|1|https://leetcode-cn.com/problems/reorder-list|
+|103. 二叉树的锯齿形层次遍历|1|https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal|
+|208. 实现 Trie (前缀树)|1|https://leetcode-cn.com/problems/implement-trie-prefix-tree|
+|3. 无重复字符的最长子串|1|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|50. Pow(x, n)|1|https://leetcode-cn.com/problems/powx-n|
+|7. 整数反转|1|https://leetcode-cn.com/problems/reverse-integer|
+|410. 分割数组的最大值|1|https://leetcode-cn.com/problems/split-array-largest-sum|
+|25. K 个一组翻转链表|1|https://leetcode-cn.com/problems/reverse-nodes-in-k-group|
+|146. LRU缓存机制|1|https://leetcode-cn.com/problems/lru-cache|
+|15. 三数之和|1|https://leetcode-cn.com/problems/3sum|
+|226. 翻转二叉树|1|https://leetcode-cn.com/problems/invert-binary-tree|
+|剑指 Offer 40. 最小的k个数|1|https://leetcode-cn.com/problems/zui-xiao-de-kge-shu-lcof|
+|73. 矩阵置零|1|https://leetcode-cn.com/problems/set-matrix-zeroes|
+|695. 岛屿的最大面积|1|https://leetcode-cn.com/problems/max-area-of-island|
+|面试题 17.24. 最大子矩阵|1|https://leetcode-cn.com/problems/max-submatrix-lcci|
+|300. 最长上升子序列|1|https://leetcode-cn.com/problems/longest-increasing-subsequence|
+|39. 组合总和|1|https://leetcode-cn.com/problems/combination-sum|
+|剑指 Offer 22. 链表中倒数第k个节点|1|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
\ No newline at end of file
diff --git a/meituan/backend.md b/meituan/backend.md
new file mode 100644
index 0000000..e5aefdc
--- /dev/null
+++ b/meituan/backend.md
@@ -0,0 +1,159 @@
+# 后端
+若想按部门/难度/题型筛选题目，请进入[CodeTop](https://codetop.cc)查询
+
+|题目|出现次数|链接|
+|-|-|-|
+|206. 反转链表|27|https://leetcode-cn.com/problems/reverse-linked-list|
+|88. 合并两个有序数组|11|https://leetcode-cn.com/problems/merge-sorted-array|
+|补充题4. 手撕快速排序|11|https://leetcode-cn.com/problems/sort-an-array|
+|141. 环形链表|11|https://leetcode-cn.com/problems/linked-list-cycle|
+|718. 最长重复子数组|10|https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray|
+|102. 二叉树的层序遍历|9|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|剑指 Offer 22. 链表中倒数第k个节点|9|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
+|8. 字符串转换整数 (atoi)|8|https://leetcode-cn.com/problems/string-to-integer-atoi|
+|92. 反转链表 II|8|https://leetcode-cn.com/problems/reverse-linked-list-ii|
+|232. 用栈实现队列|7|https://leetcode-cn.com/problems/implement-queue-using-stacks|
+|215. 数组中的第K个最大元素|7|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|124. 二叉树中的最大路径和|6|https://leetcode-cn.com/problems/binary-tree-maximum-path-sum|
+|144. 二叉树的前序遍历|6|https://leetcode-cn.com/problems/binary-tree-preorder-traversal|
+|146. LRU缓存机制|6|https://leetcode-cn.com/problems/lru-cache|
+|543. 二叉树的直径|6|https://leetcode-cn.com/problems/diameter-of-binary-tree|
+|142. 环形链表 II|6|https://leetcode-cn.com/problems/linked-list-cycle-ii|
+|160. 相交链表|6|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
+|54. 螺旋矩阵|6|https://leetcode-cn.com/problems/spiral-matrix|
+|5. 最长回文子串|6|https://leetcode-cn.com/problems/longest-palindromic-substring|
+|19. 删除链表的倒数第N个节点|6|https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list|
+|21. 合并两个有序链表|6|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|25. K 个一组翻转链表|5|https://leetcode-cn.com/problems/reverse-nodes-in-k-group|
+|236. 二叉树的最近公共祖先|5|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree|
+|15. 三数之和|5|https://leetcode-cn.com/problems/3sum|
+|94. 二叉树的中序遍历|5|https://leetcode-cn.com/problems/binary-tree-inorder-traversal|
+|82. 删除排序链表中的重复元素 II|5|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list-ii|
+|143. 重排链表|5|https://leetcode-cn.com/problems/reorder-list|
+|3. 无重复字符的最长子串|5|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|56. 合并区间|5|https://leetcode-cn.com/problems/merge-intervals|
+|剑指 Offer 36. 二叉搜索树与双向链表|4|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-yu-shuang-xiang-lian-biao-lcof|
+|415. 字符串相加|4|https://leetcode-cn.com/problems/add-strings|
+|704. 二分查找|4|https://leetcode-cn.com/problems/binary-search|
+|191. 位1的个数|4|https://leetcode-cn.com/problems/number-of-1-bits|
+|20. 有效的括号|4|https://leetcode-cn.com/problems/valid-parentheses|
+|113. 路径总和 II|4|https://leetcode-cn.com/problems/path-sum-ii|
+|7. 整数反转|4|https://leetcode-cn.com/problems/reverse-integer|
+|2. 两数相加|4|https://leetcode-cn.com/problems/add-two-numbers|
+|53. 最大子序和|4|https://leetcode-cn.com/problems/maximum-subarray|
+|剑指 Offer 40. 最小的k个数|4|https://leetcode-cn.com/problems/zui-xiao-de-kge-shu-lcof|
+|103. 二叉树的锯齿形层次遍历|4|https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal|
+|151. 翻转字符串里的单词|4|https://leetcode-cn.com/problems/reverse-words-in-a-string|
+|1143. 最长公共子序列|3|https://leetcode-cn.com/problems/longest-common-subsequence|
+|110. 平衡二叉树|3|https://leetcode-cn.com/problems/balanced-binary-tree|
+|1. 两数之和|3|https://leetcode-cn.com/problems/two-sum|
+|199. 二叉树的右视图|3|https://leetcode-cn.com/problems/binary-tree-right-side-view|
+|234. 回文链表|3|https://leetcode-cn.com/problems/palindrome-linked-list|
+|93. 复原IP地址|3|https://leetcode-cn.com/problems/restore-ip-addresses|
+|498. 对角线遍历|3|https://leetcode-cn.com/problems/diagonal-traverse|
+|33. 搜索旋转排序数组|3|https://leetcode-cn.com/problems/search-in-rotated-sorted-array|
+|62. 不同路径|3|https://leetcode-cn.com/problems/unique-paths|
+|169. 多数元素|3|https://leetcode-cn.com/problems/majority-element|
+|剑指 Offer 62. 圆圈中最后剩下的数字|3|https://leetcode-cn.com/problems/yuan-quan-zhong-zui-hou-sheng-xia-de-shu-zi-lcof|
+|70. 爬楼梯|3|https://leetcode-cn.com/problems/climbing-stairs|
+|补充题5. 手撕归并排序|3|https://leetcode-cn.com/problems/sort-an-array|
+|468. 验证IP地址|3|https://leetcode-cn.com/problems/validate-ip-address|
+|补充题8. 计算数组的小和|3|https://mp.weixin.qq.com/s/0ih4W6nawzFUPSj3GOnYTQ|
+|83. 删除排序链表中的重复元素|3|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list|
+|78. 子集|3|https://leetcode-cn.com/problems/subsets|
+|46. 全排列|3|https://leetcode-cn.com/problems/permutations|
+|34. 在排序数组中查找元素的第一个和最后一个位置|2|https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array|
+|384. 打乱数组|2|https://leetcode-cn.com/problems/shuffle-an-array|
+|226. 翻转二叉树|2|https://leetcode-cn.com/problems/invert-binary-tree|
+|69. x 的平方根|2|https://leetcode-cn.com/problems/sqrtx|
+|41. 缺失的第一个正数|2|https://leetcode-cn.com/problems/first-missing-positive|
+|300. 最长上升子序列|2|https://leetcode-cn.com/problems/longest-increasing-subsequence|
+|9. 回文数|2|https://leetcode-cn.com/problems/palindrome-number|
+|剑指 Offer 10- II. 青蛙跳台阶问题|2|https://leetcode-cn.com/problems/qing-wa-tiao-tai-jie-wen-ti-lcof|
+|64. 最小路径和|2|https://leetcode-cn.com/problems/minimum-path-sum|
+|687. 最长同值路径|2|https://leetcode-cn.com/problems/longest-univalue-path|
+|剑指 Offer 10- I. 斐波那契数列|2|https://leetcode-cn.com/problems/fei-bo-na-qi-shu-lie-lcof|
+|179. 最大数|2|https://leetcode-cn.com/problems/largest-number|
+|162. 寻找峰值|2|https://leetcode-cn.com/problems/find-peak-element|
+|剑指 Offer 21. 调整数组顺序使奇数位于偶数前面|2|https://leetcode-cn.com/problems/diao-zheng-shu-zu-shun-xu-shi-qi-shu-wei-yu-ou-shu-qian-mian-lcof|
+|121. 买卖股票的最佳时机|2|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|125. 验证回文串|2|https://leetcode-cn.com/problems/valid-palindrome|
+|6. Z 字形变换|2|https://leetcode-cn.com/problems/zigzag-conversion|
+|101. 对称二叉树|2|https://leetcode-cn.com/problems/symmetric-tree|
+|242. 有效的字母异位词|2|https://leetcode-cn.com/problems/valid-anagram|
+|剑指 Offer 15. 二进制中1的个数|2|https://leetcode-cn.com/problems/er-jin-zhi-zhong-1de-ge-shu-lcof|
+|120. 三角形最小路径和|2|https://leetcode-cn.com/problems/triangle|
+|283. 移动零|2|https://leetcode-cn.com/problems/move-zeroes|
+|118. 杨辉三角|2|https://leetcode-cn.com/problems/pascals-triangle|
+|剑指 Offer 58 - I. 翻转单词顺序|1|https://leetcode-cn.com/problems/fan-zhuan-dan-ci-shun-xu-lcof|
+|剑指 Offer 09. 用两个栈实现队列|1|https://leetcode-cn.com/problems/yong-liang-ge-zhan-shi-xian-dui-lie-lcof|
+|387. 字符串中的第一个唯一字符|1|https://leetcode-cn.com/problems/first-unique-character-in-a-string|
+|153. 寻找旋转排序数组中的最小值|1|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array|
+|55. 跳跃游戏|1|https://leetcode-cn.com/problems/jump-game|
+|1245. 树的直径|1|https://leetcode-cn.com/problems/tree-diameter|
+|1044. 最长重复子串|1|https://leetcode-cn.com/problems/longest-duplicate-substring|
+|679. 24 点游戏|1|https://leetcode-cn.com/problems/24-game|
+|60. 第k个排列|1|https://leetcode-cn.com/problems/permutation-sequence|
+|132. 分割回文串 II|1|https://leetcode-cn.com/problems/palindrome-partitioning-ii|
+|43. 字符串相乘|1|https://leetcode-cn.com/problems/multiply-strings|
+|105. 从前序与中序遍历序列构造二叉树|1|https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal|
+|117. 填充每个节点的下一个右侧节点指针 II|1|https://leetcode-cn.com/problems/populating-next-right-pointers-in-each-node-ii|
+|补充题6. 手撕堆排序|1|https://leetcode-cn.com/problems/sort-an-array|
+|509. 斐波那契数|1|https://leetcode-cn.com/problems/fibonacci-number|
+|268. 缺失数字|1|https://leetcode-cn.com/problems/missing-number|
+|26. 删除排序数组中的重复项|1|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array|
+|剑指 Offer 45. 把数组排成最小的数|1|https://leetcode-cn.com/problems/ba-shu-zu-pai-cheng-zui-xiao-de-shu-lcof|
+|958. 二叉树的完全性检验|1|https://leetcode-cn.com/problems/check-completeness-of-a-binary-tree|
+|42. 接雨水|1|https://leetcode-cn.com/problems/trapping-rain-water|
+|面试题 16.03. 交点|1|https://leetcode-cn.com/problems/intersection-lcci|
+|108. 将有序数组转换为二叉搜索树|1|https://leetcode-cn.com/problems/convert-sorted-array-to-binary-search-tree|
+|240. 搜索二维矩阵 II|1|https://leetcode-cn.com/problems/search-a-2d-matrix-ii|
+|450. 删除二叉搜索树中的节点|1|https://leetcode-cn.com/problems/delete-node-in-a-bst|
+|剑指 Offer 14- I. 剪绳子|1|https://leetcode-cn.com/problems/jian-sheng-zi-lcof|
+|203. 移除链表元素|1|https://leetcode-cn.com/problems/remove-linked-list-elements|
+|227. 基本计算器 II|1|https://leetcode-cn.com/problems/basic-calculator-ii|
+|31. 下一个排列|1|https://leetcode-cn.com/problems/next-permutation|
+|剑指 Offer 58 - II. 左旋转字符串|1|https://leetcode-cn.com/problems/zuo-xuan-zhuan-zi-fu-chuan-lcof|
+|617. 合并二叉树|1|https://leetcode-cn.com/problems/merge-two-binary-trees|
+|1095. 山脉数组中查找目标值|1|https://leetcode-cn.com/problems/find-in-mountain-array|
+|354. 俄罗斯套娃信封问题|1|https://leetcode-cn.com/problems/russian-doll-envelopes|
+|104. 二叉树的最大深度|1|https://leetcode-cn.com/problems/maximum-depth-of-binary-tree|
+|198. 打家劫舍|1|https://leetcode-cn.com/problems/house-robber|
+|155. 最小栈|1|https://leetcode-cn.com/problems/min-stack|
+|剑指 Offer 53 - I. 在排序数组中查找数字 I|1|https://leetcode-cn.com/problems/zai-pai-xu-shu-zu-zhong-cha-zhao-shu-zi-lcof|
+|138. 复制带随机指针的链表|1|https://leetcode-cn.com/problems/copy-list-with-random-pointer|
+|剑指 Offer 11. 旋转数组的最小数字|1|https://leetcode-cn.com/problems/xuan-zhuan-shu-zu-de-zui-xiao-shu-zi-lcof|
+|137. 只出现一次的数字 II|1|https://leetcode-cn.com/problems/single-number-ii|
+|518. 零钱兑换 II|1|https://leetcode-cn.com/problems/coin-change-2|
+|59. 螺旋矩阵 II|1|https://leetcode-cn.com/problems/spiral-matrix-ii|
+|4. 寻找两个正序数组的中位数|1|https://leetcode-cn.com/problems/median-of-two-sorted-arrays|
+|补充题20. 立方根|1||
+|剑指 Offer 65. 不用加减乘除做加法|1|https://leetcode-cn.com/problems/bu-yong-jia-jian-cheng-chu-zuo-jia-fa-lcof|
+|165. 比较版本号|1|https://leetcode-cn.com/problems/compare-version-numbers|
+|123. 买卖股票的最佳时机 III|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iii|
+|136. 只出现一次的数字|1|https://leetcode-cn.com/problems/single-number|
+|129. 求根到叶子节点数字之和|1|https://leetcode-cn.com/problems/sum-root-to-leaf-numbers|
+|剑指 Offer 43. 1～n整数中1出现的次数|1|https://leetcode-cn.com/problems/1nzheng-shu-zhong-1chu-xian-de-ci-shu-lcof|
+|面试题 02.08. 环路检测|1|https://leetcode-cn.com/problems/linked-list-cycle-lcci|
+|128. 最长连续序列|1|https://leetcode-cn.com/problems/longest-consecutive-sequence|
+|47. 全排列 II|1|https://leetcode-cn.com/problems/permutations-ii|
+|61. 旋转链表|1|https://leetcode-cn.com/problems/rotate-list|
+|剑指 Offer 03. 数组中重复的数字|1|https://leetcode-cn.com/problems/shu-zu-zhong-zhong-fu-de-shu-zi-lcof|
+|剑指 Offer 29. 顺时针打印矩阵|1|https://leetcode-cn.com/problems/shun-shi-zhen-da-yin-ju-zhen-lcof|
+|面试题 02.01. 移除重复节点|1|https://leetcode-cn.com/problems/remove-duplicate-node-lcci|
+|面试题 02.02. 返回倒数第 k 个节点|1|https://leetcode-cn.com/problems/kth-node-from-end-of-list-lcci|
+|11. 盛最多水的容器|1|https://leetcode-cn.com/problems/container-with-most-water|
+|172. 阶乘后的零|1|https://leetcode-cn.com/problems/factorial-trailing-zeroes|
+|14. 最长公共前缀|1|https://leetcode-cn.com/problems/longest-common-prefix|
+|补充题21. 字符串相减|1|https://mp.weixin.qq.com/s/kCue4c0gnLSw0HosFl_t7w|
+|516. 最长回文子序列|1|https://leetcode-cn.com/problems/longest-palindromic-subsequence|
+|692. 前K个高频单词|1|https://leetcode-cn.com/problems/top-k-frequent-words|
+|91. 解码方法|1|https://leetcode-cn.com/problems/decode-ways|
+|面试题 02.05. 链表求和|1|https://leetcode-cn.com/problems/sum-lists-lcci|
+|面试题 03.05. 栈排序|1|https://leetcode-cn.com/problems/sort-of-stacks-lcci|
+|23. 合并K个排序链表|1|https://leetcode-cn.com/problems/merge-k-sorted-lists|
+|876. 链表的中间结点|1|https://leetcode-cn.com/problems/middle-of-the-linked-list|
+|145. 二叉树的后序遍历|1|https://leetcode-cn.com/problems/binary-tree-postorder-traversal|
+|622. 设计循环队列|1|https://leetcode-cn.com/problems/design-circular-queue|
+|343. 整数拆分|1|https://leetcode-cn.com/problems/integer-break|
+|112. 路径总和|1|https://leetcode-cn.com/problems/path-sum|
\ No newline at end of file
diff --git a/meituan/client.md b/meituan/client.md
new file mode 100644
index 0000000..ebbf92f
--- /dev/null
+++ b/meituan/client.md
@@ -0,0 +1,62 @@
+# 客户端
+若想按部门/难度/题型筛选题目，请进入[CodeTop](https://codetop.cc)查询
+|题目|出现次数|链接|
+|-|-|-|
+|补充题4. 手撕快速排序|4|https://leetcode-cn.com/problems/sort-an-array|
+|142. 环形链表 II|4|https://leetcode-cn.com/problems/linked-list-cycle-ii|
+|剑指 Offer 10- I. 斐波那契数列|3|https://leetcode-cn.com/problems/fei-bo-na-qi-shu-lie-lcof|
+|155. 最小栈|3|https://leetcode-cn.com/problems/min-stack|
+|206. 反转链表|3|https://leetcode-cn.com/problems/reverse-linked-list|
+|236. 二叉树的最近公共祖先|2|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree|
+|53. 最大子序和|2|https://leetcode-cn.com/problems/maximum-subarray|
+|69. x 的平方根|2|https://leetcode-cn.com/problems/sqrtx|
+|141. 环形链表|2|https://leetcode-cn.com/problems/linked-list-cycle|
+|232. 用栈实现队列|2|https://leetcode-cn.com/problems/implement-queue-using-stacks|
+|54. 螺旋矩阵|2|https://leetcode-cn.com/problems/spiral-matrix|
+|剑指 Offer 52. 两个链表的第一个公共节点|2|https://leetcode-cn.com/problems/liang-ge-lian-biao-de-di-yi-ge-gong-gong-jie-dian-lcof|
+|46. 全排列|2|https://leetcode-cn.com/problems/permutations|
+|19. 删除链表的倒数第N个节点|2|https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list|
+|86. 分隔链表|1|https://leetcode-cn.com/problems/partition-list|
+|48. 旋转图像|1|https://leetcode-cn.com/problems/rotate-image|
+|312. 戳气球|1|https://leetcode-cn.com/problems/burst-balloons|
+|718. 最长重复子数组|1|https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray|
+|169. 多数元素|1|https://leetcode-cn.com/problems/majority-element|
+|151. 翻转字符串里的单词|1|https://leetcode-cn.com/problems/reverse-words-in-a-string|
+|78. 子集|1|https://leetcode-cn.com/problems/subsets|
+|146. LRU缓存机制|1|https://leetcode-cn.com/problems/lru-cache|
+|234. 回文链表|1|https://leetcode-cn.com/problems/palindrome-linked-list|
+|1143. 最长公共子序列|1|https://leetcode-cn.com/problems/longest-common-subsequence|
+|83. 删除排序链表中的重复元素|1|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list|
+|21. 合并两个有序链表|1|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|876. 链表的中间结点|1|https://leetcode-cn.com/problems/middle-of-the-linked-list|
+|剑指 Offer 22. 链表中倒数第k个节点|1|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
+|剑指 Offer 21. 调整数组顺序使奇数位于偶数前面|1|https://leetcode-cn.com/problems/diao-zheng-shu-zu-shun-xu-shi-qi-shu-wei-yu-ou-shu-qian-mian-lcof|
+|239. 滑动窗口最大值|1|https://leetcode-cn.com/problems/sliding-window-maximum|
+|63. 不同路径 II|1|https://leetcode-cn.com/problems/unique-paths-ii|
+|64. 最小路径和|1|https://leetcode-cn.com/problems/minimum-path-sum|
+|补充题19. 判断一个点是否在三角形内|1|https://mp.weixin.qq.com/s/qnVUJq4lmnLsXJgyHCXngA|
+|24. 两两交换链表中的节点|1|https://leetcode-cn.com/problems/swap-nodes-in-pairs|
+|200. 岛屿数量|1|https://leetcode-cn.com/problems/number-of-islands|
+|226. 翻转二叉树|1|https://leetcode-cn.com/problems/invert-binary-tree|
+|25. K 个一组翻转链表|1|https://leetcode-cn.com/problems/reverse-nodes-in-k-group|
+|7. 整数反转|1|https://leetcode-cn.com/problems/reverse-integer|
+|225. 用队列实现栈|1|https://leetcode-cn.com/problems/implement-stack-using-queues|
+|62. 不同路径|1|https://leetcode-cn.com/problems/unique-paths|
+|121. 买卖股票的最佳时机|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|88. 合并两个有序数组|1|https://leetcode-cn.com/problems/merge-sorted-array|
+|516. 最长回文子序列|1|https://leetcode-cn.com/problems/longest-palindromic-subsequence|
+|144. 二叉树的前序遍历|1|https://leetcode-cn.com/problems/binary-tree-preorder-traversal|
+|102. 二叉树的层序遍历|1|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|559. N叉树的最大深度|1|https://leetcode-cn.com/problems/maximum-depth-of-n-ary-tree|
+|剑指 Offer 40. 最小的k个数|1|https://leetcode-cn.com/problems/zui-xiao-de-kge-shu-lcof|
+|199. 二叉树的右视图|1|https://leetcode-cn.com/problems/binary-tree-right-side-view|
+|20. 有效的括号|1|https://leetcode-cn.com/problems/valid-parentheses|
+|4. 寻找两个正序数组的中位数|1|https://leetcode-cn.com/problems/median-of-two-sorted-arrays|
+|160. 相交链表|1|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
+|34. 在排序数组中查找元素的第一个和最后一个位置|1|https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array|
+|剑指 Offer 10- II. 青蛙跳台阶问题|1|https://leetcode-cn.com/problems/qing-wa-tiao-tai-jie-wen-ti-lcof|
+|113. 路径总和 II|1|https://leetcode-cn.com/problems/path-sum-ii|
+|70. 爬楼梯|1|https://leetcode-cn.com/problems/climbing-stairs|
+|300. 最长上升子序列|1|https://leetcode-cn.com/problems/longest-increasing-subsequence|
+|889. 根据前序和后序遍历构造二叉树|1|https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-postorder-traversal|
+|468. 验证IP地址|1|https://leetcode-cn.com/problems/validate-ip-address|
\ No newline at end of file
diff --git a/meituan/data.md b/meituan/data.md
new file mode 100644
index 0000000..9b91902
--- /dev/null
+++ b/meituan/data.md
@@ -0,0 +1,27 @@
+# 数据研发
+若想按部门/难度/题型筛选题目，请进入[CodeTop](https://codetop.cc)查询
+|题目|出现次数|链接|
+|-|-|-|
+|补充题4. 手撕快速排序|3|https://leetcode-cn.com/problems/sort-an-array|
+|141. 环形链表|3|https://leetcode-cn.com/problems/linked-list-cycle|
+|704. 二分查找|2|https://leetcode-cn.com/problems/binary-search|
+|215. 数组中的第K个最大元素|2|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|54. 螺旋矩阵|2|https://leetcode-cn.com/problems/spiral-matrix|
+|120. 三角形最小路径和|1|https://leetcode-cn.com/problems/triangle|
+|151. 翻转字符串里的单词|1|https://leetcode-cn.com/problems/reverse-words-in-a-string|
+|1143. 最长公共子序列|1|https://leetcode-cn.com/problems/longest-common-subsequence|
+|26. 删除排序数组中的重复项|1|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array|
+|117. 填充每个节点的下一个右侧节点指针 II|1|https://leetcode-cn.com/problems/populating-next-right-pointers-in-each-node-ii|
+|104. 二叉树的最大深度|1|https://leetcode-cn.com/problems/maximum-depth-of-binary-tree|
+|124. 二叉树中的最大路径和|1|https://leetcode-cn.com/problems/binary-tree-maximum-path-sum|
+|153. 寻找旋转排序数组中的最小值|1|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array|
+|补充题5. 手撕归并排序|1|https://leetcode-cn.com/problems/sort-an-array|
+|剑指 Offer 27. 二叉树的镜像|1|https://leetcode-cn.com/problems/er-cha-shu-de-jing-xiang-lcof|
+|21. 合并两个有序链表|1|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|剑指 Offer 51. 数组中的逆序对|1|https://leetcode-cn.com/problems/shu-zu-zhong-de-ni-xu-dui-lcof|
+|53. 最大子序和|1|https://leetcode-cn.com/problems/maximum-subarray|
+|15. 三数之和|1|https://leetcode-cn.com/problems/3sum|
+|20. 有效的括号|1|https://leetcode-cn.com/problems/valid-parentheses|
+|剑指 Offer 22. 链表中倒数第k个节点|1|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
+|239. 滑动窗口最大值|1|https://leetcode-cn.com/problems/sliding-window-maximum|
+|155. 最小栈|1|https://leetcode-cn.com/problems/min-stack|
\ No newline at end of file
diff --git a/meituan/frontend.md b/meituan/frontend.md
new file mode 100644
index 0000000..72a0c51
--- /dev/null
+++ b/meituan/frontend.md
@@ -0,0 +1,49 @@
+# 前端
+若想按部门/难度/题型筛选题目，请进入[CodeTop](https://codetop.cc)查询
+|题目|出现次数|链接|
+|-|-|-|
+|补充题4. 手撕快速排序|7|https://leetcode-cn.com/problems/sort-an-array|
+|70. 爬楼梯|4|https://leetcode-cn.com/problems/climbing-stairs|
+|88. 合并两个有序数组|4|https://leetcode-cn.com/problems/merge-sorted-array|
+|剑指 Offer 10- I. 斐波那契数列|4|https://leetcode-cn.com/problems/fei-bo-na-qi-shu-lie-lcof|
+|104. 二叉树的最大深度|3|https://leetcode-cn.com/problems/maximum-depth-of-binary-tree|
+|300. 最长上升子序列|3|https://leetcode-cn.com/problems/longest-increasing-subsequence|
+|20. 有效的括号|2|https://leetcode-cn.com/problems/valid-parentheses|
+|415. 字符串相加|2|https://leetcode-cn.com/problems/add-strings|
+|46. 全排列|2|https://leetcode-cn.com/problems/permutations|
+|1047. 删除字符串中的所有相邻重复项|2|https://leetcode-cn.com/problems/remove-all-adjacent-duplicates-in-string|
+|498. 对角线遍历|2|https://leetcode-cn.com/problems/diagonal-traverse|
+|322. 零钱兑换|2|https://leetcode-cn.com/problems/coin-change|
+|48. 旋转图像|2|https://leetcode-cn.com/problems/rotate-image|
+|136. 只出现一次的数字|2|https://leetcode-cn.com/problems/single-number|
+|54. 螺旋矩阵|1|https://leetcode-cn.com/problems/spiral-matrix|
+|141. 环形链表|1|https://leetcode-cn.com/problems/linked-list-cycle|
+|654. 最大二叉树|1|https://leetcode-cn.com/problems/maximum-binary-tree|
+|704. 二分查找|1|https://leetcode-cn.com/problems/binary-search|
+|557. 反转字符串中的单词 III|1|https://leetcode-cn.com/problems/reverse-words-in-a-string-iii|
+|102. 二叉树的层序遍历|1|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|21. 合并两个有序链表|1|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|206. 反转链表|1|https://leetcode-cn.com/problems/reverse-linked-list|
+|199. 二叉树的右视图|1|https://leetcode-cn.com/problems/binary-tree-right-side-view|
+|42. 接雨水|1|https://leetcode-cn.com/problems/trapping-rain-water|
+|64. 最小路径和|1|https://leetcode-cn.com/problems/minimum-path-sum|
+|补充题5. 手撕归并排序|1|https://leetcode-cn.com/problems/sort-an-array|
+|50. Pow(x, n)|1|https://leetcode-cn.com/problems/powx-n|
+|172. 阶乘后的零|1|https://leetcode-cn.com/problems/factorial-trailing-zeroes|
+|105. 从前序与中序遍历序列构造二叉树|1|https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal|
+|剑指 Offer 48. 最长不含重复字符的子字符串|1|https://leetcode-cn.com/problems/zui-chang-bu-han-zhong-fu-zi-fu-de-zi-zi-fu-chuan-lcof|
+|剑指 Offer 10- II. 青蛙跳台阶问题|1|https://leetcode-cn.com/problems/qing-wa-tiao-tai-jie-wen-ti-lcof|
+|6. Z 字形变换|1|https://leetcode-cn.com/problems/zigzag-conversion|
+|63. 不同路径 II|1|https://leetcode-cn.com/problems/unique-paths-ii|
+|384. 打乱数组|1|https://leetcode-cn.com/problems/shuffle-an-array|
+|14. 最长公共前缀|1|https://leetcode-cn.com/problems/longest-common-prefix|
+|15. 三数之和|1|https://leetcode-cn.com/problems/3sum|
+|260. 只出现一次的数字 III|1|https://leetcode-cn.com/problems/single-number-iii|
+|补充题19. 判断一个点是否在三角形内|1|https://mp.weixin.qq.com/s/qnVUJq4lmnLsXJgyHCXngA|
+|1. 两数之和|1|https://leetcode-cn.com/problems/two-sum|
+|718. 最长重复子数组|1|https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray|
+|59. 螺旋矩阵 II|1|https://leetcode-cn.com/problems/spiral-matrix-ii|
+|53. 最大子序和|1|https://leetcode-cn.com/problems/maximum-subarray|
+|283. 移动零|1|https://leetcode-cn.com/problems/move-zeroes|
+|1518. 换酒问题|1|https://leetcode-cn.com/problems/water-bottles|
+|78. 子集|1|https://leetcode-cn.com/problems/subsets|
\ No newline at end of file
diff --git a/meituan/test.md b/meituan/test.md
new file mode 100644
index 0000000..8e11c0d
--- /dev/null
+++ b/meituan/test.md
@@ -0,0 +1,63 @@
+# 测试
+若想按部门/难度/题型筛选题目，请进入[CodeTop](https://codetop.cc)查询
+|题目|出现次数|链接|
+|-|-|-|
+|3. 无重复字符的最长子串|8|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|1. 两数之和|7|https://leetcode-cn.com/problems/two-sum|
+|704. 二分查找|6|https://leetcode-cn.com/problems/binary-search|
+|20. 有效的括号|6|https://leetcode-cn.com/problems/valid-parentheses|
+|232. 用栈实现队列|5|https://leetcode-cn.com/problems/implement-queue-using-stacks|
+|141. 环形链表|4|https://leetcode-cn.com/problems/linked-list-cycle|
+|14. 最长公共前缀|4|https://leetcode-cn.com/problems/longest-common-prefix|
+|46. 全排列|4|https://leetcode-cn.com/problems/permutations|
+|7. 整数反转|4|https://leetcode-cn.com/problems/reverse-integer|
+|53. 最大子序和|4|https://leetcode-cn.com/problems/maximum-subarray|
+|136. 只出现一次的数字|4|https://leetcode-cn.com/problems/single-number|
+|242. 有效的字母异位词|4|https://leetcode-cn.com/problems/valid-anagram|
+|8. 字符串转换整数 (atoi)|4|https://leetcode-cn.com/problems/string-to-integer-atoi|
+|151. 翻转字符串里的单词|3|https://leetcode-cn.com/problems/reverse-words-in-a-string|
+|468. 验证IP地址|3|https://leetcode-cn.com/problems/validate-ip-address|
+|补充题14. 阿拉伯数字转中文数字|3||
+|剑指 Offer 53 - I. 在排序数组中查找数字 I|3|https://leetcode-cn.com/problems/zai-pai-xu-shu-zu-zhong-cha-zhao-shu-zi-lcof|
+|169. 多数元素|3|https://leetcode-cn.com/problems/majority-element|
+|补充题4. 手撕快速排序|3|https://leetcode-cn.com/problems/sort-an-array|
+|128. 最长连续序列|2|https://leetcode-cn.com/problems/longest-consecutive-sequence|
+|83. 删除排序链表中的重复元素|2|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list|
+|21. 合并两个有序链表|2|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|88. 合并两个有序数组|2|https://leetcode-cn.com/problems/merge-sorted-array|
+|226. 翻转二叉树|2|https://leetcode-cn.com/problems/invert-binary-tree|
+|剑指 Offer 21. 调整数组顺序使奇数位于偶数前面|2|https://leetcode-cn.com/problems/diao-zheng-shu-zu-shun-xu-shi-qi-shu-wei-yu-ou-shu-qian-mian-lcof|
+|718. 最长重复子数组|2|https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray|
+|76. 最小覆盖子串|2|https://leetcode-cn.com/problems/minimum-window-substring|
+|239. 滑动窗口最大值|2|https://leetcode-cn.com/problems/sliding-window-maximum|
+|剑指 Offer 57 - II. 和为s的连续正数序列|2|https://leetcode-cn.com/problems/he-wei-sde-lian-xu-zheng-shu-xu-lie-lcof|
+|165. 比较版本号|2|https://leetcode-cn.com/problems/compare-version-numbers|
+|153. 寻找旋转排序数组中的最小值|1|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array|
+|876. 链表的中间结点|1|https://leetcode-cn.com/problems/middle-of-the-linked-list|
+|70. 爬楼梯|1|https://leetcode-cn.com/problems/climbing-stairs|
+|796. 旋转字符串|1|https://leetcode-cn.com/problems/rotate-string|
+|72. 编辑距离|1|https://leetcode-cn.com/problems/edit-distance|
+|460. LFU缓存|1|https://leetcode-cn.com/problems/lfu-cache|
+|106. 从中序与后序遍历序列构造二叉树|1|https://leetcode-cn.com/problems/construct-binary-tree-from-inorder-and-postorder-traversal|
+|231. 2的幂|1|https://leetcode-cn.com/problems/power-of-two|
+|415. 字符串相加|1|https://leetcode-cn.com/problems/add-strings|
+|50. Pow(x, n)|1|https://leetcode-cn.com/problems/powx-n|
+|40. 组合总和 II|1|https://leetcode-cn.com/problems/combination-sum-ii|
+|628. 三个数的最大乘积|1|https://leetcode-cn.com/problems/maximum-product-of-three-numbers|
+|215. 数组中的第K个最大元素|1|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|剑指 Offer 61. 扑克牌中的顺子|1|https://leetcode-cn.com/problems/bu-ke-pai-zhong-de-shun-zi-lcof|
+|剑指 Offer 45. 把数组排成最小的数|1|https://leetcode-cn.com/problems/ba-shu-zu-pai-cheng-zui-xiao-de-shu-lcof|
+|240. 搜索二维矩阵 II|1|https://leetcode-cn.com/problems/search-a-2d-matrix-ii|
+|23. 合并K个排序链表|1|https://leetcode-cn.com/problems/merge-k-sorted-lists|
+|9. 回文数|1|https://leetcode-cn.com/problems/palindrome-number|
+|剑指 Offer 10- I. 斐波那契数列|1|https://leetcode-cn.com/problems/fei-bo-na-qi-shu-lie-lcof|
+|26. 删除排序数组中的重复项|1|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array|
+|283. 移动零|1|https://leetcode-cn.com/problems/move-zeroes|
+|34. 在排序数组中查找元素的第一个和最后一个位置|1|https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array|
+|125. 验证回文串|1|https://leetcode-cn.com/problems/valid-palindrome|
+|28. 实现 strStr()|1|https://leetcode-cn.com/problems/implement-strstr|
+|206. 反转链表|1|https://leetcode-cn.com/problems/reverse-linked-list|
+|101. 对称二叉树|1|https://leetcode-cn.com/problems/symmetric-tree|
+|167. 两数之和 II - 输入有序数组|1|https://leetcode-cn.com/problems/two-sum-ii-input-array-is-sorted|
+|32. 最长有效括号|1|https://leetcode-cn.com/problems/longest-valid-parentheses|
+|15. 三数之和|1|https://leetcode-cn.com/problems/3sum|
\ No newline at end of file
diff --git a/microsoft/SDE.md b/microsoft/SDE.md
index b9a548d..492971d 100644
--- a/microsoft/SDE.md
+++ b/microsoft/SDE.md
@@ -1,117 +1,207 @@
-ℹ题目源于（2019.04.06~2020.11.23）的牛客面经
-
-> 每道题目均有出处，题目的原始链接见[issues](https://github.com/afatcoder/LeetcodeTop/issues)
-
-您可以在https://leetcode-cn.top 更方便的检索题目，当前支持按公司+部门+岗位自由组合查询
+- 题目原文链接见[issues](https://github.com/afatcoder/LeetcodeTop/issues)
+- 若想按部门/难度/题型筛选题目，可以在[CodeTop](https://codetop.cc) 查询
|题目|出现次数|链接|
|-|-|-|
-|215. 数组中的第K个最大元素|8|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
-|48. 旋转图像|6|https://leetcode-cn.com/problems/rotate-image|
-|91. 解码方法|5|https://leetcode-cn.com/problems/decode-ways|
-|206. 反转链表|4|https://leetcode-cn.com/problems/reverse-linked-list|
-|94. 二叉树的中序遍历|4|https://leetcode-cn.com/problems/binary-tree-inorder-traversal|
-|124. 二叉树中的最大路径和|4|https://leetcode-cn.com/problems/binary-tree-maximum-path-sum|
-|236. 二叉树的最近公共祖先|4|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree|
+|215. 数组中的第K个最大元素|14|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|236. 二叉树的最近公共祖先|10|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree|
+|206. 反转链表|9|https://leetcode-cn.com/problems/reverse-linked-list|
+|48. 旋转图像|9|https://leetcode-cn.com/problems/rotate-image|
+|124. 二叉树中的最大路径和|7|https://leetcode-cn.com/problems/binary-tree-maximum-path-sum|
+|53. 最大子序和|7|https://leetcode-cn.com/problems/maximum-subarray|
+|91. 解码方法|6|https://leetcode-cn.com/problems/decode-ways|
+|151. 翻转字符串里的单词|6|https://leetcode-cn.com/problems/reverse-words-in-a-string|
+|543. 二叉树的直径|6|https://leetcode-cn.com/problems/diameter-of-binary-tree|
+|297. 二叉树的序列化与反序列化|6|https://leetcode-cn.com/problems/serialize-and-deserialize-binary-tree|
+|146. LRU缓存机制|5|https://leetcode-cn.com/problems/lru-cache|
+|450. 删除二叉搜索树中的节点|5|https://leetcode-cn.com/problems/delete-node-in-a-bst|
+|22. 括号生成|5|https://leetcode-cn.com/problems/generate-parentheses|
+|47. 全排列 II|5|https://leetcode-cn.com/problems/permutations-ii|
+|224. 基本计算器|5|https://leetcode-cn.com/problems/basic-calculator|
|468. 验证IP地址|4|https://leetcode-cn.com/problems/validate-ip-address|
-|240. 搜索二维矩阵 II|3|https://leetcode-cn.com/problems/search-a-2d-matrix-ii|
-|15. 三数之和|3|https://leetcode-cn.com/problems/3sum|
-|384. 打乱数组|3|https://leetcode-cn.com/problems/shuffle-an-array|
-|121. 买卖股票的最佳时机|3|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
-|53. 最大子序和|3|https://leetcode-cn.com/problems/maximum-subarray|
-|450. 删除二叉搜索树中的节点|3|https://leetcode-cn.com/problems/delete-node-in-a-bst|
-|146. LRU缓存机制|3|https://leetcode-cn.com/problems/lru-cache|
-|22. 括号生成|3|https://leetcode-cn.com/problems/generate-parentheses|
-|543. 二叉树的直径|3|https://leetcode-cn.com/problems/diameter-of-binary-tree|
-|98. 验证二叉搜索树|3|https://leetcode-cn.com/problems/validate-binary-search-tree|
+|110. 平衡二叉树|4|https://leetcode-cn.com/problems/balanced-binary-tree|
+|94. 二叉树的中序遍历|4|https://leetcode-cn.com/problems/binary-tree-inorder-traversal|
+|15. 三数之和|4|https://leetcode-cn.com/problems/3sum|
+|121. 买卖股票的最佳时机|4|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|39. 组合总和|4|https://leetcode-cn.com/problems/combination-sum|
+|1. 两数之和|4|https://leetcode-cn.com/problems/two-sum|
+|3. 无重复字符的最长子串|4|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|207. 课程表|4|https://leetcode-cn.com/problems/course-schedule|
+|138. 复制带随机指针的链表|4|https://leetcode-cn.com/problems/copy-list-with-random-pointer|
+|69. x 的平方根|4|https://leetcode-cn.com/problems/sqrtx|
+|240. 搜索二维矩阵 II|4|https://leetcode-cn.com/problems/search-a-2d-matrix-ii|
+|4. 寻找两个正序数组的中位数|3|https://leetcode-cn.com/problems/median-of-two-sorted-arrays|
+|103. 二叉树的锯齿形层次遍历|3|https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal|
+|560. 和为K的子数组|3|https://leetcode-cn.com/problems/subarray-sum-equals-k|
+|162. 寻找峰值|3|https://leetcode-cn.com/problems/find-peak-element|
+|62. 不同路径|3|https://leetcode-cn.com/problems/unique-paths|
+|72. 编辑距离|3|https://leetcode-cn.com/problems/edit-distance|
|200. 岛屿数量|3|https://leetcode-cn.com/problems/number-of-islands|
+|89. 格雷编码|3|https://leetcode-cn.com/problems/gray-code|
+|98. 验证二叉搜索树|3|https://leetcode-cn.com/problems/validate-binary-search-tree|
+|152. 乘积最大子数组|3|https://leetcode-cn.com/problems/maximum-product-subarray|
+|384. 打乱数组|3|https://leetcode-cn.com/problems/shuffle-an-array|
+|37. 解数独|3|https://leetcode-cn.com/problems/sudoku-solver|
+|36. 有效的数独|3|https://leetcode-cn.com/problems/valid-sudoku|
+|面试题 08.12. 八皇后|3|https://leetcode-cn.com/problems/eight-queens-lcci|
+|141. 环形链表|3|https://leetcode-cn.com/problems/linked-list-cycle|
+|153. 寻找旋转排序数组中的最小值|3|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array|
+|33. 搜索旋转排序数组|3|https://leetcode-cn.com/problems/search-in-rotated-sorted-array|
+|剑指 Offer 46. 把数字翻译成字符串|2|https://leetcode-cn.com/problems/ba-shu-zi-fan-yi-cheng-zi-fu-chuan-lcof|
|415. 字符串相加|2|https://leetcode-cn.com/problems/add-strings|
-|151. 翻转字符串里的单词|2|https://leetcode-cn.com/problems/reverse-words-in-a-string|
-|69. x 的平方根|2|https://leetcode-cn.com/problems/sqrtx|
-|62. 不同路径|2|https://leetcode-cn.com/problems/unique-paths|
-|89. 格雷编码|2|https://leetcode-cn.com/problems/gray-code|
-|剑指 Offer 51. 数组中的逆序对|2|https://leetcode-cn.com/problems/shu-zu-zhong-de-ni-xu-dui-lcof|
-|110. 平衡二叉树|2|https://leetcode-cn.com/problems/balanced-binary-tree|
+|986. 区间列表的交集|2|https://leetcode-cn.com/problems/interval-list-intersections|
+|547. 省份数量（原朋友圈）|2|https://leetcode-cn.com/problems/number-of-provinces|
+|34. 在排序数组中查找元素的第一个和最后一个位置|2|https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array|
+|142. 环形链表 II|2|https://leetcode-cn.com/problems/linked-list-cycle-ii|
+|154. 寻找旋转排序数组中的最小值 II|2|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array-ii|
+|283. 移动零|2|https://leetcode-cn.com/problems/move-zeroes|
+|10. 正则表达式匹配|2|https://leetcode-cn.com/problems/regular-expression-matching|
|79. 单词搜索|2|https://leetcode-cn.com/problems/word-search|
-|138. 复制带随机指针的链表|2|https://leetcode-cn.com/problems/copy-list-with-random-pointer|
-|103. 二叉树的锯齿形层次遍历|2|https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal|
-|4. 寻找两个正序数组的中位数|2|https://leetcode-cn.com/problems/median-of-two-sorted-arrays|
+|剑指 Offer 52. 两个链表的第一个公共节点|2|https://leetcode-cn.com/problems/liang-ge-lian-biao-de-di-yi-ge-gong-gong-jie-dian-lcof|
+|76. 最小覆盖子串|2|https://leetcode-cn.com/problems/minimum-window-substring|
+|449. 序列化和反序列化二叉搜索树|2|https://leetcode-cn.com/problems/serialize-and-deserialize-bst|
|300. 最长上升子序列|2|https://leetcode-cn.com/problems/longest-increasing-subsequence|
+|剑指 Offer 33. 二叉搜索树的后序遍历序列|2|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-hou-xu-bian-li-xu-lie-lcof|
+|剑指 Offer 04. 二维数组中的查找|2|https://leetcode-cn.com/problems/er-wei-shu-zu-zhong-de-cha-zhao-lcof|
+|剑指 Offer 51. 数组中的逆序对|2|https://leetcode-cn.com/problems/shu-zu-zhong-de-ni-xu-dui-lcof|
+|877. 石子游戏|2|https://leetcode-cn.com/problems/stone-game|
|59. 螺旋矩阵 II|2|https://leetcode-cn.com/problems/spiral-matrix-ii|
+|25. K 个一组翻转链表|2|https://leetcode-cn.com/problems/reverse-nodes-in-k-group|
+|287. 寻找重复数|2|https://leetcode-cn.com/problems/find-the-duplicate-number|
+|362. 敲击计数器|2|https://leetcode-cn.com/problems/design-hit-counter|
|119. 杨辉三角 II|2|https://leetcode-cn.com/problems/pascals-triangle-ii|
-|1. 两数之和|2|https://leetcode-cn.com/problems/two-sum|
-|剑指 Offer 04. 二维数组中的查找|1|https://leetcode-cn.com/problems/er-wei-shu-zu-zhong-de-cha-zhao-lcof|
-|剑指 Offer 46. 把数字翻译成字符串|1|https://leetcode-cn.com/problems/ba-shu-zi-fan-yi-cheng-zi-fu-chuan-lcof|
-|102. 二叉树的层序遍历|1|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
-|72. 编辑距离|1|https://leetcode-cn.com/problems/edit-distance|
-|47. 全排列 II|1|https://leetcode-cn.com/problems/permutations-ii|
-|877. 石子游戏|1|https://leetcode-cn.com/problems/stone-game|
+|863. 二叉树中所有距离为 K 的结点|2|https://leetcode-cn.com/problems/all-nodes-distance-k-in-binary-tree|
+|1095. 山脉数组中查找目标值|2|https://leetcode-cn.com/problems/find-in-mountain-array|
+|295. 数据流的中位数|2|https://leetcode-cn.com/problems/find-median-from-data-stream|
+|8. 字符串转换整数 (atoi)|2|https://leetcode-cn.com/problems/string-to-integer-atoi|
+|129. 求根到叶子节点数字之和|2|https://leetcode-cn.com/problems/sum-root-to-leaf-numbers|
+|173. 二叉搜索树迭代器|2|https://leetcode-cn.com/problems/binary-search-tree-iterator|
+|73. 矩阵置零|2|https://leetcode-cn.com/problems/set-matrix-zeroes|
+|补充题12. 二叉树的下一个节点|2|https://mp.weixin.qq.com/s/yewlHvHSilMsrUMFIO8WAA|
+|补充题6. 手撕堆排序|2|https://leetcode-cn.com/problems/sort-an-array|
+|148. 排序链表|2|https://leetcode-cn.com/problems/sort-list|
+|208. 实现 Trie (前缀树)|2|https://leetcode-cn.com/problems/implement-trie-prefix-tree|
+|706. 设计哈希映射|2|https://leetcode-cn.com/problems/design-hashmap|
+|160. 相交链表|2|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
+|428. 序列化和反序列化 N 叉树|2|https://leetcode-cn.com/problems/serialize-and-deserialize-n-ary-tree|
+|64. 最小路径和|2|https://leetcode-cn.com/problems/minimum-path-sum|
+|116. 填充每个节点的下一个右侧节点指针|2|https://leetcode-cn.com/problems/populating-next-right-pointers-in-each-node|
+|105. 从前序与中序遍历序列构造二叉树|2|https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal|
+|40. 组合总和 II|2|https://leetcode-cn.com/problems/combination-sum-ii|
+|189. 旋转数组|2|https://leetcode-cn.com/problems/rotate-array|
|84. 柱状图中最大的矩形|1|https://leetcode-cn.com/problems/largest-rectangle-in-histogram|
-|150. 逆波兰表达式求值|1|https://leetcode-cn.com/problems/evaluate-reverse-polish-notation|
-|328. 奇偶链表|1|https://leetcode-cn.com/problems/odd-even-linked-list|
-|739. 每日温度|1|https://leetcode-cn.com/problems/daily-temperatures|
-|1155. 掷骰子的N种方法|1|https://leetcode-cn.com/problems/number-of-dice-rolls-with-target-sum|
-|1375. 灯泡开关 III|1|https://leetcode-cn.com/problems/bulb-switcher-iii|
-|701. 二叉搜索树中的插入操作|1|https://leetcode-cn.com/problems/insert-into-a-binary-search-tree|
-|60. 第k个排列|1|https://leetcode-cn.com/problems/permutation-sequence|
-|704. 二分查找|1|https://leetcode-cn.com/problems/binary-search|
-|3. 无重复字符的最长子串|1|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
-|449. 序列化和反序列化二叉搜索树|1|https://leetcode-cn.com/problems/serialize-and-deserialize-bst|
-|88. 合并两个有序数组|1|https://leetcode-cn.com/problems/merge-sorted-array|
-|394. 字符串解码|1|https://leetcode-cn.com/problems/decode-string|
-|39. 组合总和|1|https://leetcode-cn.com/problems/combination-sum|
-|剑指 Offer 26. 树的子结构|1|https://leetcode-cn.com/problems/shu-de-zi-jie-gou-lcof|
-|44. 通配符匹配|1|https://leetcode-cn.com/problems/wildcard-matching|
-|713. 乘积小于K的子数组|1|https://leetcode-cn.com/problems/subarray-product-less-than-k|
+|120. 三角形最小路径和|1|https://leetcode-cn.com/problems/triangle|
|5. 最长回文子串|1|https://leetcode-cn.com/problems/longest-palindromic-substring|
-|1095. 山脉数组中查找目标值|1|https://leetcode-cn.com/problems/find-in-mountain-array|
-|剑指 Offer 52. 两个链表的第一个公共节点|1|https://leetcode-cn.com/problems/liang-ge-lian-biao-de-di-yi-ge-gong-gong-jie-dian-lcof|
-|700. 二叉搜索树中的搜索|1|https://leetcode-cn.com/problems/search-in-a-binary-search-tree|
-|557. 反转字符串中的单词 III|1|https://leetcode-cn.com/problems/reverse-words-in-a-string-iii|
-|37. 解数独|1|https://leetcode-cn.com/problems/sudoku-solver|
-|560. 和为K的子数组|1|https://leetcode-cn.com/problems/subarray-sum-equals-k|
-|154. 寻找旋转排序数组中的最小值 II|1|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array-ii|
-|973. 最接近原点的 K 个点|1|https://leetcode-cn.com/problems/k-closest-points-to-origin|
-|692. 前K个高频单词|1|https://leetcode-cn.com/problems/top-k-frequent-words|
+|867. 转置矩阵|1|https://leetcode-cn.com/problems/transpose-matrix|
+|78. 子集|1|https://leetcode-cn.com/problems/subsets|
|907. 子数组的最小值之和|1|https://leetcode-cn.com/problems/sum-of-subarray-minimums|
-|887. 鸡蛋掉落|1|https://leetcode-cn.com/problems/super-egg-drop|
-|152. 乘积最大子数组|1|https://leetcode-cn.com/problems/maximum-product-subarray|
-|349. 两个数组的交集|1|https://leetcode-cn.com/problems/intersection-of-two-arrays|
-|297. 二叉树的序列化与反序列化|1|https://leetcode-cn.com/problems/serialize-and-deserialize-binary-tree|
|1013. 将数组分成和相等的三个部分|1|https://leetcode-cn.com/problems/partition-array-into-three-parts-with-equal-sum|
-|767. 重构字符串|1|https://leetcode-cn.com/problems/reorganize-string|
-|207. 课程表|1|https://leetcode-cn.com/problems/course-schedule|
|572. 另一个树的子树|1|https://leetcode-cn.com/problems/subtree-of-another-tree|
-|459. 重复的子字符串|1|https://leetcode-cn.com/problems/repeated-substring-pattern|
-|76. 最小覆盖子串|1|https://leetcode-cn.com/problems/minimum-window-substring|
-|139. 单词拆分|1|https://leetcode-cn.com/problems/word-break|
-|569. 员工薪水中位数|1|https://leetcode-cn.com/problems/median-employee-salary|
-|362. 敲击计数器|1|https://leetcode-cn.com/problems/design-hit-counter|
-|78. 子集|1|https://leetcode-cn.com/problems/subsets|
+|704. 二分查找|1|https://leetcode-cn.com/problems/binary-search|
|171. Excel表列序号|1|https://leetcode-cn.com/problems/excel-sheet-column-number|
-|426. 将二叉搜索树转化为排序的双向链表|1|https://leetcode-cn.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list|
-|863. 二叉树中所有距离为 K 的结点|1|https://leetcode-cn.com/problems/all-nodes-distance-k-in-binary-tree|
-|547. 朋友圈|1|https://leetcode-cn.com/problems/friend-circles|
+|150. 逆波兰表达式求值|1|https://leetcode-cn.com/problems/evaluate-reverse-polish-notation|
+|767. 重构字符串|1|https://leetcode-cn.com/problems/reorganize-string|
+|459. 重复的子字符串|1|https://leetcode-cn.com/problems/repeated-substring-pattern|
+|973. 最接近原点的 K 个点|1|https://leetcode-cn.com/problems/k-closest-points-to-origin|
+|剑指 Offer 21. 调整数组顺序使奇数位于偶数前面|1|https://leetcode-cn.com/problems/diao-zheng-shu-zu-shun-xu-shi-qi-shu-wei-yu-ou-shu-qian-mian-lcof|
+|剑指 Offer 36. 二叉搜索树与双向链表|1|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-yu-shuang-xiang-lian-biao-lcof|
+|887. 鸡蛋掉落|1|https://leetcode-cn.com/problems/super-egg-drop|
+|剑指 Offer 26. 树的子结构|1|https://leetcode-cn.com/problems/shu-de-zi-jie-gou-lcof|
+|328. 奇偶链表|1|https://leetcode-cn.com/problems/odd-even-linked-list|
+|137. 只出现一次的数字 II|1|https://leetcode-cn.com/problems/single-number-ii|
|155. 最小栈|1|https://leetcode-cn.com/problems/min-stack|
-|20. 有效的括号|1|https://leetcode-cn.com/problems/valid-parentheses|
-|287. 寻找重复数|1|https://leetcode-cn.com/problems/find-the-duplicate-number|
-|1314. 矩阵区域和|1|https://leetcode-cn.com/problems/matrix-block-sum|
-|142. 环形链表 II|1|https://leetcode-cn.com/problems/linked-list-cycle-ii|
-|10. 正则表达式匹配|1|https://leetcode-cn.com/problems/regular-expression-matching|
+|1375. 灯泡开关 III|1|https://leetcode-cn.com/problems/bulb-switcher-iii|
|662. 二叉树最大宽度|1|https://leetcode-cn.com/problems/maximum-width-of-binary-tree|
-|剑指 Offer 33. 二叉搜索树的后序遍历序列|1|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-hou-xu-bian-li-xu-lie-lcof|
+|44. 通配符匹配|1|https://leetcode-cn.com/problems/wildcard-matching|
+|739. 每日温度|1|https://leetcode-cn.com/problems/daily-temperatures|
+|122. 买卖股票的最佳时机 II|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-ii|
+|20. 有效的括号|1|https://leetcode-cn.com/problems/valid-parentheses|
+|700. 二叉搜索树中的搜索|1|https://leetcode-cn.com/problems/search-in-a-binary-search-tree|
+|701. 二叉搜索树中的插入操作|1|https://leetcode-cn.com/problems/insert-into-a-binary-search-tree|
+|1312. 让字符串成为回文串的最少插入次数|1|https://leetcode-cn.com/problems/minimum-insertion-steps-to-make-a-string-palindrome|
+|139. 单词拆分|1|https://leetcode-cn.com/problems/word-break|
+|557. 反转字符串中的单词 III|1|https://leetcode-cn.com/problems/reverse-words-in-a-string-iii|
+|60. 第k个排列|1|https://leetcode-cn.com/problems/permutation-sequence|
|848. 字母移位|1|https://leetcode-cn.com/problems/shifting-letters|
-|113. 路径总和 II|1|https://leetcode-cn.com/problems/path-sum-ii|
-|986. 区间列表的交集|1|https://leetcode-cn.com/problems/interval-list-intersections|
-|剑指 Offer 21. 调整数组顺序使奇数位于偶数前面|1|https://leetcode-cn.com/problems/diao-zheng-shu-zu-shun-xu-shi-qi-shu-wei-yu-ou-shu-qian-mian-lcof|
+|569. 员工薪水中位数|1|https://leetcode-cn.com/problems/median-employee-salary|
+|88. 合并两个有序数组|1|https://leetcode-cn.com/problems/merge-sorted-array|
|617. 合并二叉树|1|https://leetcode-cn.com/problems/merge-two-binary-trees|
-|120. 三角形最小路径和|1|https://leetcode-cn.com/problems/triangle|
-|162. 寻找峰值|1|https://leetcode-cn.com/problems/find-peak-element|
-|283. 移动零|1|https://leetcode-cn.com/problems/move-zeroes|
-|137. 只出现一次的数字 II|1|https://leetcode-cn.com/problems/single-number-ii|
-|122. 买卖股票的最佳时机 II|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-ii|
-|25. K 个一组翻转链表|1|https://leetcode-cn.com/problems/reverse-nodes-in-k-group|
-|867. 转置矩阵|1|https://leetcode-cn.com/problems/transpose-matrix|
+|349. 两个数组的交集|1|https://leetcode-cn.com/problems/intersection-of-two-arrays|
+|713. 乘积小于K的子数组|1|https://leetcode-cn.com/problems/subarray-product-less-than-k|
+|102. 二叉树的层序遍历|1|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|113. 路径总和 II|1|https://leetcode-cn.com/problems/path-sum-ii|
+|692. 前K个高频单词|1|https://leetcode-cn.com/problems/top-k-frequent-words|
+|394. 字符串解码|1|https://leetcode-cn.com/problems/decode-string|
+|1155. 掷骰子的N种方法|1|https://leetcode-cn.com/problems/number-of-dice-rolls-with-target-sum|
|694. 不同岛屿的数量|1|https://leetcode-cn.com/problems/number-of-distinct-islands|
-|34. 在排序数组中查找元素的第一个和最后一个位置|1|https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array|
-|1312. 让字符串成为回文串的最少插入次数|1|https://leetcode-cn.com/problems/minimum-insertion-steps-to-make-a-string-palindrome|
+|1314. 矩阵区域和|1|https://leetcode-cn.com/problems/matrix-block-sum|
+|82. 删除排序链表中的重复元素 II|1|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list-ii|
+|123. 买卖股票的最佳时机 III|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iii|
+|114. 二叉树展开为链表|1|https://leetcode-cn.com/problems/flatten-binary-tree-to-linked-list|
+|104. 二叉树的最大深度|1|https://leetcode-cn.com/problems/maximum-depth-of-binary-tree|
+|407. 接雨水 II|1|https://leetcode-cn.com/problems/trapping-rain-water-ii|
+|剑指 Offer 40. 最小的k个数|1|https://leetcode-cn.com/problems/zui-xiao-de-kge-shu-lcof|
+|347. 前 K 个高频元素|1|https://leetcode-cn.com/problems/top-k-frequent-elements|
+|剑指 Offer 31. 栈的压入、弹出序列|1|https://leetcode-cn.com/problems/zhan-de-ya-ru-dan-chu-xu-lie-lcof|
+|29. 两数相除|1|https://leetcode-cn.com/problems/divide-two-integers|
+|1356. 根据数字二进制下 1 的数目排序|1|https://leetcode-cn.com/problems/sort-integers-by-the-number-of-1-bits|
+|386. 字典序排数|1|https://leetcode-cn.com/problems/lexicographical-numbers|
+|311. 稀疏矩阵的乘法|1|https://leetcode-cn.com/problems/sparse-matrix-multiplication|
+|166. 分数到小数|1|https://leetcode-cn.com/problems/fraction-to-recurring-decimal|
+|补充题14. 阿拉伯数字转中文数字|1||
+|21. 合并两个有序链表|1|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|1358. 包含所有三种字符的子字符串数目|1|https://leetcode-cn.com/problems/number-of-substrings-containing-all-three-characters|
+|剑指 Offer 53 - II. 0～n-1中缺失的数字|1|https://leetcode-cn.com/problems/que-shi-de-shu-zi-lcof|
+|补充题17. 两个有序数组第k小的数|1||
+|209. 长度最小的子数组|1|https://leetcode-cn.com/problems/minimum-size-subarray-sum|
+|227. 基本计算器 II|1|https://leetcode-cn.com/problems/basic-calculator-ii|
+|470. 用 Rand7() 实现 Rand10()|1|https://leetcode-cn.com/problems/implement-rand10-using-rand7|
+|13. 罗马数字转整数|1|https://leetcode-cn.com/problems/roman-to-integer|
+|643. 子数组最大平均数 I|1|https://leetcode-cn.com/problems/maximum-average-subarray-i|
+|871. 最低加油次数|1|https://leetcode-cn.com/problems/minimum-number-of-refueling-stops|
+|1615. 最大网络秩|1|https://leetcode-cn.com/problems/maximal-network-rank|
+|剑指 Offer 56 - II. 数组中数字出现的次数 II|1|https://leetcode-cn.com/problems/shu-zu-zhong-shu-zi-chu-xian-de-ci-shu-ii-lcof|
+|1483. 树节点的第 K 个祖先|1|https://leetcode-cn.com/problems/kth-ancestor-of-a-tree-node|
+|1570. 两个稀疏向量的点积|1|https://leetcode-cn.com/problems/dot-product-of-two-sparse-vectors|
+|628. 三个数的最大乘积|1|https://leetcode-cn.com/problems/maximum-product-of-three-numbers|
+|145. 二叉树的后序遍历|1|https://leetcode-cn.com/problems/binary-tree-postorder-traversal|
+|46. 全排列|1|https://leetcode-cn.com/problems/permutations|
+|460. LFU缓存|1|https://leetcode-cn.com/problems/lfu-cache|
+|785. 判断二分图|1|https://leetcode-cn.com/problems/is-graph-bipartite|
+|718. 最长重复子数组|1|https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray|
+|242. 有效的字母异位词|1|https://leetcode-cn.com/problems/valid-anagram|
+|307. 区域和检索 - 数组可修改|1|https://leetcode-cn.com/problems/range-sum-query-mutable|
+|442. 数组中重复的数据|1|https://leetcode-cn.com/problems/find-all-duplicates-in-an-array|
+|补充题13. 中文数字转阿拉伯数字|1||
+|56. 合并区间|1|https://leetcode-cn.com/problems/merge-intervals|
+|17. 电话号码的字母组合|1|https://leetcode-cn.com/problems/letter-combinations-of-a-phone-number|
+|1143. 最长公共子序列|1|https://leetcode-cn.com/problems/longest-common-subsequence|
+|179. 最大数|1|https://leetcode-cn.com/problems/largest-number|
+|513. 找树左下角的值|1|https://leetcode-cn.com/problems/find-bottom-left-tree-value|
+|133. 克隆图|1|https://leetcode-cn.com/problems/clone-graph|
+|99. 恢复二叉搜索树|1|https://leetcode-cn.com/problems/recover-binary-search-tree|
+|剑指 Offer 48. 最长不含重复字符的子字符串|1|https://leetcode-cn.com/problems/zui-chang-bu-han-zhong-fu-zi-fu-de-zi-zi-fu-chuan-lcof|
+|168. Excel表列名称|1|https://leetcode-cn.com/problems/excel-sheet-column-title|
+|2. 两数相加|1|https://leetcode-cn.com/problems/add-two-numbers|
+|337. 打家劫舍 III|1|https://leetcode-cn.com/problems/house-robber-iii|
+|518. 零钱兑换 II|1|https://leetcode-cn.com/problems/coin-change-2|
+|844. 比较含退格的字符串|1|https://leetcode-cn.com/problems/backspace-string-compare|
+|353. 贪吃蛇|1|https://leetcode-cn.com/problems/design-snake-game|
+|198. 打家劫舍|1|https://leetcode-cn.com/problems/house-robber|
+|109. 有序链表转换二叉搜索树|1|https://leetcode-cn.com/problems/convert-sorted-list-to-binary-search-tree|
+|70. 爬楼梯|1|https://leetcode-cn.com/problems/climbing-stairs|
+|面试题 17.24. 最大子矩阵|1|https://leetcode-cn.com/problems/max-submatrix-lcci|
+|268. 缺失数字|1|https://leetcode-cn.com/problems/missing-number|
+|1497. 检查数组对是否可以被 k 整除|1|https://leetcode-cn.com/problems/check-if-array-pairs-are-divisible-by-k|
+|239. 滑动窗口最大值|1|https://leetcode-cn.com/problems/sliding-window-maximum|
+|354. 俄罗斯套娃信封问题|1|https://leetcode-cn.com/problems/russian-doll-envelopes|
+|752. 打开转盘锁|1|https://leetcode-cn.com/problems/open-the-lock|
+|797. 所有可能的路径|1|https://leetcode-cn.com/problems/all-paths-from-source-to-target|
+|222. 完全二叉树的节点个数|1|https://leetcode-cn.com/problems/count-complete-tree-nodes|
+|322. 零钱兑换|1|https://leetcode-cn.com/problems/coin-change|
+|743. 网络延迟时间|1|https://leetcode-cn.com/problems/network-delay-time|
+|199. 二叉树的右视图|1|https://leetcode-cn.com/problems/binary-tree-right-side-view|
+|135. 分发糖果|1|https://leetcode-cn.com/problems/candy|
+|41. 缺失的第一个正数|1|https://leetcode-cn.com/problems/first-missing-positive|
+|剑指 Offer 15. 二进制中1的个数|1|https://leetcode-cn.com/problems/er-jin-zhi-zhong-1de-ge-shu-lcof|
+|剑指 Offer 22. 链表中倒数第k个节点|1|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
diff --git a/shopee/algorithm.md b/shopee/algorithm.md
new file mode 100644
index 0000000..ed2d886
--- /dev/null
+++ b/shopee/algorithm.md
@@ -0,0 +1,8 @@
+我最近开发的[CodeTop网站](https://codetop.cc)可以按照**部门**、**难度**筛选，比markdown更方便检索
+
+|题目|出现次数|链接|
+|-|-|-|
+|5. 最长回文子串|2|https://leetcode-cn.com/problems/longest-palindromic-substring|
+|915. 分割数组|1|https://leetcode-cn.com/problems/partition-array-into-disjoint-intervals|
+|3. 无重复字符的最长子串|1|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|724. 寻找数组的中心索引|1|https://leetcode-cn.com/problems/find-pivot-index|
\ No newline at end of file
diff --git a/shopee/backend.md b/shopee/backend.md
new file mode 100644
index 0000000..ba3005b
--- /dev/null
+++ b/shopee/backend.md
@@ -0,0 +1,109 @@
+我最近开发的[CodeTop网站](https://codetop.cc)可以按照**部门**、**难度**筛选，比markdown更方便检索
+
+|题目|出现次数|链接|
+|-|-|-|
+|232. 用栈实现队列|10|https://leetcode-cn.com/problems/implement-queue-using-stacks|
+|160. 相交链表|8|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
+|1. 两数之和|7|https://leetcode-cn.com/problems/two-sum|
+|21. 合并两个有序链表|7|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|179. 最大数|5|https://leetcode-cn.com/problems/largest-number|
+|704. 二分查找|5|https://leetcode-cn.com/problems/binary-search|
+|146. LRU缓存机制|5|https://leetcode-cn.com/problems/lru-cache|
+|226. 翻转二叉树|4|https://leetcode-cn.com/problems/invert-binary-tree|
+|206. 反转链表|4|https://leetcode-cn.com/problems/reverse-linked-list|
+|2. 两数相加|4|https://leetcode-cn.com/problems/add-two-numbers|
+|82. 删除排序链表中的重复元素 II|4|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list-ii|
+|72. 编辑距离|3|https://leetcode-cn.com/problems/edit-distance|
+|15. 三数之和|3|https://leetcode-cn.com/problems/3sum|
+|94. 二叉树的中序遍历|3|https://leetcode-cn.com/problems/binary-tree-inorder-traversal|
+|34. 在排序数组中查找元素的第一个和最后一个位置|3|https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array|
+|102. 二叉树的层序遍历|3|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|3. 无重复字符的最长子串|3|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|117. 填充每个节点的下一个右侧节点指针 II|3|https://leetcode-cn.com/problems/populating-next-right-pointers-in-each-node-ii|
+|76. 最小覆盖子串|3|https://leetcode-cn.com/problems/minimum-window-substring|
+|445. 两数相加 II|3|https://leetcode-cn.com/problems/add-two-numbers-ii|
+|19. 删除链表的倒数第N个节点|2|https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list|
+|补充题5. 手撕归并排序|2|https://leetcode-cn.com/problems/sort-an-array|
+|105. 从前序与中序遍历序列构造二叉树|2|https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal|
+|199. 二叉树的右视图|2|https://leetcode-cn.com/problems/binary-tree-right-side-view|
+|141. 环形链表|2|https://leetcode-cn.com/problems/linked-list-cycle|
+|136. 只出现一次的数字|2|https://leetcode-cn.com/problems/single-number|
+|剑指 Offer 51. 数组中的逆序对|2|https://leetcode-cn.com/problems/shu-zu-zhong-de-ni-xu-dui-lcof|
+|113. 路径总和 II|2|https://leetcode-cn.com/problems/path-sum-ii|
+|405. 数字转换为十六进制数|2|https://leetcode-cn.com/problems/convert-a-number-to-hexadecimal|
+|215. 数组中的第K个最大元素|2|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|110. 平衡二叉树|2|https://leetcode-cn.com/problems/balanced-binary-tree|
+|剑指 Offer 22. 链表中倒数第k个节点|2|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
+|239. 滑动窗口最大值|2|https://leetcode-cn.com/problems/sliding-window-maximum|
+|145. 二叉树的后序遍历|2|https://leetcode-cn.com/problems/binary-tree-postorder-traversal|
+|25. K 个一组翻转链表|2|https://leetcode-cn.com/problems/reverse-nodes-in-k-group|
+|236. 二叉树的最近公共祖先|2|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree|
+|23. 合并K个排序链表|1|https://leetcode-cn.com/problems/merge-k-sorted-lists|
+|53. 最大子序和|1|https://leetcode-cn.com/problems/maximum-subarray|
+|718. 最长重复子数组|1|https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray|
+|378. 有序矩阵中第K小的元素|1|https://leetcode-cn.com/problems/kth-smallest-element-in-a-sorted-matrix|
+|154. 寻找旋转排序数组中的最小值 II|1|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array-ii|
+|295. 数据流的中位数|1|https://leetcode-cn.com/problems/find-median-from-data-stream|
+|142. 环形链表 II|1|https://leetcode-cn.com/problems/linked-list-cycle-ii|
+|144. 二叉树的前序遍历|1|https://leetcode-cn.com/problems/binary-tree-preorder-traversal|
+|42. 接雨水|1|https://leetcode-cn.com/problems/trapping-rain-water|
+|167. 两数之和 II - 输入有序数组|1|https://leetcode-cn.com/problems/two-sum-ii-input-array-is-sorted|
+|54. 螺旋矩阵|1|https://leetcode-cn.com/problems/spiral-matrix|
+|114. 二叉树展开为链表|1|https://leetcode-cn.com/problems/flatten-binary-tree-to-linked-list|
+|153. 寻找旋转排序数组中的最小值|1|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array|
+|剑指 Offer 10- I. 斐波那契数列|1|https://leetcode-cn.com/problems/fei-bo-na-qi-shu-lie-lcof|
+|88. 合并两个有序数组|1|https://leetcode-cn.com/problems/merge-sorted-array|
+|5. 最长回文子串|1|https://leetcode-cn.com/problems/longest-palindromic-substring|
+|230. 二叉搜索树中第K小的元素|1|https://leetcode-cn.com/problems/kth-smallest-element-in-a-bst|
+|300. 最长上升子序列|1|https://leetcode-cn.com/problems/longest-increasing-subsequence|
+|415. 字符串相加|1|https://leetcode-cn.com/problems/add-strings|
+|138. 复制带随机指针的链表|1|https://leetcode-cn.com/problems/copy-list-with-random-pointer|
+|剑指 Offer 62. 圆圈中最后剩下的数字|1|https://leetcode-cn.com/problems/yuan-quan-zhong-zui-hou-sheng-xia-de-shu-zi-lcof|
+|98. 验证二叉搜索树|1|https://leetcode-cn.com/problems/validate-binary-search-tree|
+|402. 移掉K位数字|1|https://leetcode-cn.com/problems/remove-k-digits|
+|208. 实现 Trie (前缀树)|1|https://leetcode-cn.com/problems/implement-trie-prefix-tree|
+|528. 按权重随机选择|1|https://leetcode-cn.com/problems/random-pick-with-weight|
+|680. 验证回文字符串 Ⅱ|1|https://leetcode-cn.com/problems/valid-palindrome-ii|
+|349. 两个数组的交集|1|https://leetcode-cn.com/problems/intersection-of-two-arrays|
+|443. 压缩字符串|1|https://leetcode-cn.com/problems/string-compression|
+|225. 用队列实现栈|1|https://leetcode-cn.com/problems/implement-stack-using-queues|
+|83. 删除排序链表中的重复元素|1|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list|
+|92. 反转链表 II|1|https://leetcode-cn.com/problems/reverse-linked-list-ii|
+|97. 交错字符串|1|https://leetcode-cn.com/problems/interleaving-string|
+|227. 基本计算器 II|1|https://leetcode-cn.com/problems/basic-calculator-ii|
+|169. 多数元素|1|https://leetcode-cn.com/problems/majority-element|
+|20. 有效的括号|1|https://leetcode-cn.com/problems/valid-parentheses|
+|139. 单词拆分|1|https://leetcode-cn.com/problems/word-break|
+|547. 省份数量（原朋友圈）|1|https://leetcode-cn.com/problems/number-of-provinces|
+|26. 删除排序数组中的重复项|1|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array|
+|369. 给单链表加一|1|https://leetcode-cn.com/problems/plus-one-linked-list|
+|补充题4. 手撕快速排序|1|https://leetcode-cn.com/problems/sort-an-array|
+|101. 对称二叉树|1|https://leetcode-cn.com/problems/symmetric-tree|
+|62. 不同路径|1|https://leetcode-cn.com/problems/unique-paths|
+|513. 找树左下角的值|1|https://leetcode-cn.com/problems/find-bottom-left-tree-value|
+|79. 单词搜索|1|https://leetcode-cn.com/problems/word-search|
+|283. 移动零|1|https://leetcode-cn.com/problems/move-zeroes|
+|48. 旋转图像|1|https://leetcode-cn.com/problems/rotate-image|
+|670. 最大交换|1|https://leetcode-cn.com/problems/maximum-swap|
+|703. 数据流中的第K大元素|1|https://leetcode-cn.com/problems/kth-largest-element-in-a-stream|
+|剑指 Offer 27. 二叉树的镜像|1|https://leetcode-cn.com/problems/er-cha-shu-de-jing-xiang-lcof|
+|241. 为运算表达式设计优先级|1|https://leetcode-cn.com/problems/different-ways-to-add-parentheses|
+|746. 使用最小花费爬楼梯|1|https://leetcode-cn.com/problems/min-cost-climbing-stairs|
+|187. 重复的DNA序列|1|https://leetcode-cn.com/problems/repeated-dna-sequences|
+|面试题 01.06. 字符串压缩|1|https://leetcode-cn.com/problems/compress-string-lcci|
+|958. 二叉树的完全性检验|1|https://leetcode-cn.com/problems/check-completeness-of-a-binary-tree|
+|剑指 Offer 33. 二叉搜索树的后序遍历序列|1|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-hou-xu-bian-li-xu-lie-lcof|
+|727. 最小窗口子序列|1|https://leetcode-cn.com/problems/minimum-window-subsequence|
+|118. 杨辉三角|1|https://leetcode-cn.com/problems/pascals-triangle|
+|392. 判断子序列|1|https://leetcode-cn.com/problems/is-subsequence|
+|73. 矩阵置零|1|https://leetcode-cn.com/problems/set-matrix-zeroes|
+|47. 全排列 II|1|https://leetcode-cn.com/problems/permutations-ii|
+|31. 下一个排列|1|https://leetcode-cn.com/problems/next-permutation|
+|151. 翻转字符串里的单词|1|https://leetcode-cn.com/problems/reverse-words-in-a-string|
+|200. 岛屿数量|1|https://leetcode-cn.com/problems/number-of-islands|
+|剑指 Offer 48. 最长不含重复字符的子字符串|1|https://leetcode-cn.com/problems/zui-chang-bu-han-zhong-fu-zi-fu-de-zi-zi-fu-chuan-lcof|
+|1038. 从二叉搜索树到更大和树|1|https://leetcode-cn.com/problems/binary-search-tree-to-greater-sum-tree|
+|123. 买卖股票的最佳时机 III|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iii|
+|257. 二叉树的所有路径|1|https://leetcode-cn.com/problems/binary-tree-paths|
+|75. 颜色分类|1|https://leetcode-cn.com/problems/sort-colors|
+|628. 三个数的最大乘积|1|https://leetcode-cn.com/problems/maximum-product-of-three-numbers|
\ No newline at end of file
diff --git a/shopee/client.md b/shopee/client.md
new file mode 100644
index 0000000..b4a55e8
--- /dev/null
+++ b/shopee/client.md
@@ -0,0 +1,32 @@
+我最近开发的[CodeTop网站](https://codetop.cc)可以按照**部门**、**难度**筛选，比markdown更方便检索
+|题目|出现次数|链接|
+|-|-|-|
+|53. 最大子序和|5|https://leetcode-cn.com/problems/maximum-subarray|
+|206. 反转链表|3|https://leetcode-cn.com/problems/reverse-linked-list|
+|110. 平衡二叉树|2|https://leetcode-cn.com/problems/balanced-binary-tree|
+|144. 二叉树的前序遍历|2|https://leetcode-cn.com/problems/binary-tree-preorder-traversal|
+|54. 螺旋矩阵|2|https://leetcode-cn.com/problems/spiral-matrix|
+|剑指 Offer 22. 链表中倒数第k个节点|2|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
+|215. 数组中的第K个最大元素|1|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|300. 最长上升子序列|1|https://leetcode-cn.com/problems/longest-increasing-subsequence|
+|146. LRU缓存机制|1|https://leetcode-cn.com/problems/lru-cache|
+|88. 合并两个有序数组|1|https://leetcode-cn.com/problems/merge-sorted-array|
+|94. 二叉树的中序遍历|1|https://leetcode-cn.com/problems/binary-tree-inorder-traversal|
+|补充题4. 手撕快速排序|1|https://leetcode-cn.com/problems/sort-an-array|
+|224. 基本计算器|1|https://leetcode-cn.com/problems/basic-calculator|
+|152. 乘积最大子数组|1|https://leetcode-cn.com/problems/maximum-product-subarray|
+|232. 用栈实现队列|1|https://leetcode-cn.com/problems/implement-queue-using-stacks|
+|102. 二叉树的层序遍历|1|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|69. x 的平方根|1|https://leetcode-cn.com/problems/sqrtx|
+|补充题5. 手撕归并排序|1|https://leetcode-cn.com/problems/sort-an-array|
+|41. 缺失的第一个正数|1|https://leetcode-cn.com/problems/first-missing-positive|
+|14. 最长公共前缀|1|https://leetcode-cn.com/problems/longest-common-prefix|
+|160. 相交链表|1|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
+|剑指 Offer 31. 栈的压入、弹出序列|1|https://leetcode-cn.com/problems/zhan-de-ya-ru-dan-chu-xu-lie-lcof|
+|141. 环形链表|1|https://leetcode-cn.com/problems/linked-list-cycle|
+|226. 翻转二叉树|1|https://leetcode-cn.com/problems/invert-binary-tree|
+|704. 二分查找|1|https://leetcode-cn.com/problems/binary-search|
+|2. 两数相加|1|https://leetcode-cn.com/problems/add-two-numbers|
+|剑指 Offer 54. 二叉搜索树的第k大节点|1|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-di-kda-jie-dian-lcof|
+|142. 环形链表 II|1|https://leetcode-cn.com/problems/linked-list-cycle-ii|
+|3. 无重复字符的最长子串|1|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
\ No newline at end of file
diff --git a/shopee/data.md b/shopee/data.md
new file mode 100644
index 0000000..4f8c216
--- /dev/null
+++ b/shopee/data.md
@@ -0,0 +1,9 @@
+我最近开发的[CodeTop网站](https://codetop.cc)可以按照**部门**、**难度**筛选，比markdown更方便检索
+
+|题目|出现次数|链接|
+|-|-|-|
+|283. 移动零|2|https://leetcode-cn.com/problems/move-zeroes|
+|160. 相交链表|1|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
+|补充题4. 手撕快速排序|1|https://leetcode-cn.com/problems/sort-an-array|
+|剑指 Offer 27. 二叉树的镜像|1|https://leetcode-cn.com/problems/er-cha-shu-de-jing-xiang-lcof|
+|剑指 Offer 09. 用两个栈实现队列|1|https://leetcode-cn.com/problems/yong-liang-ge-zhan-shi-xian-dui-lie-lcof|
\ No newline at end of file
diff --git a/shopee/frontend.md b/shopee/frontend.md
new file mode 100644
index 0000000..2e4e8fe
--- /dev/null
+++ b/shopee/frontend.md
@@ -0,0 +1,15 @@
+我最近开发的[CodeTop网站](https://codetop.cc)可以按照**部门**、**难度**筛选，比markdown更方便检索
+
+|题目|出现次数|链接|
+|-|-|-|
+|剑指 Offer 10- I. 斐波那契数列|2|https://leetcode-cn.com/problems/fei-bo-na-qi-shu-lie-lcof|
+|415. 字符串相加|2|https://leetcode-cn.com/problems/add-strings|
+|补充题4. 手撕快速排序|2|https://leetcode-cn.com/problems/sort-an-array|
+|94. 二叉树的中序遍历|2|https://leetcode-cn.com/problems/binary-tree-inorder-traversal|
+|102. 二叉树的层序遍历|1|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|349. 两个数组的交集|1|https://leetcode-cn.com/problems/intersection-of-two-arrays|
+|704. 二分查找|1|https://leetcode-cn.com/problems/binary-search|
+|145. 二叉树的后序遍历|1|https://leetcode-cn.com/problems/binary-tree-postorder-traversal|
+|151. 翻转字符串里的单词|1|https://leetcode-cn.com/problems/reverse-words-in-a-string|
+|1. 两数之和|1|https://leetcode-cn.com/problems/two-sum|
+|141. 环形链表|1|https://leetcode-cn.com/problems/linked-list-cycle|
\ No newline at end of file
diff --git a/shopee/test.md b/shopee/test.md
new file mode 100644
index 0000000..fb82abf
--- /dev/null
+++ b/shopee/test.md
@@ -0,0 +1,37 @@
+我最近开发的[CodeTop网站](https://codetop.cc)可以按照**部门**、**难度**筛选，比markdown更方便检索
+
+|题目|出现次数|链接|
+|-|-|-|
+|88. 合并两个有序数组|3|https://leetcode-cn.com/problems/merge-sorted-array|
+|70. 爬楼梯|3|https://leetcode-cn.com/problems/climbing-stairs|
+|14. 最长公共前缀|3|https://leetcode-cn.com/problems/longest-common-prefix|
+|136. 只出现一次的数字|3|https://leetcode-cn.com/problems/single-number|
+|141. 环形链表|2|https://leetcode-cn.com/problems/linked-list-cycle|
+|8. 字符串转换整数 (atoi)|2|https://leetcode-cn.com/problems/string-to-integer-atoi|
+|121. 买卖股票的最佳时机|2|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|278. 第一个错误的版本|2|https://leetcode-cn.com/problems/first-bad-version|
+|59. 螺旋矩阵 II|2|https://leetcode-cn.com/problems/spiral-matrix-ii|
+|剑指 Offer 10- I. 斐波那契数列|2|https://leetcode-cn.com/problems/fei-bo-na-qi-shu-lie-lcof|
+|704. 二分查找|2|https://leetcode-cn.com/problems/binary-search|
+|160. 相交链表|2|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
+|34. 在排序数组中查找元素的第一个和最后一个位置|2|https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array|
+|1. 两数之和|2|https://leetcode-cn.com/problems/two-sum|
+|15. 三数之和|2|https://leetcode-cn.com/problems/3sum|
+|5. 最长回文子串|2|https://leetcode-cn.com/problems/longest-palindromic-substring|
+|补充题13. 中文数字转阿拉伯数字|1||
+|剑指 Offer 03. 数组中重复的数字|1|https://leetcode-cn.com/problems/shu-zu-zhong-zhong-fu-de-shu-zi-lcof|
+|145. 二叉树的后序遍历|1|https://leetcode-cn.com/problems/binary-tree-postorder-traversal|
+|102. 二叉树的层序遍历|1|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|350. 两个数组的交集 II|1|https://leetcode-cn.com/problems/intersection-of-two-arrays-ii|
+|268. 缺失数字|1|https://leetcode-cn.com/problems/missing-number|
+|206. 反转链表|1|https://leetcode-cn.com/problems/reverse-linked-list|
+|877. 石子游戏|1|https://leetcode-cn.com/problems/stone-game|
+|162. 寻找峰值|1|https://leetcode-cn.com/problems/find-peak-element|
+|232. 用栈实现队列|1|https://leetcode-cn.com/problems/implement-queue-using-stacks|
+|168. Excel表列名称|1|https://leetcode-cn.com/problems/excel-sheet-column-title|
+|191. 位1的个数|1|https://leetcode-cn.com/problems/number-of-1-bits|
+|647. 回文子串|1|https://leetcode-cn.com/problems/palindromic-substrings|
+|20. 有效的括号|1|https://leetcode-cn.com/problems/valid-parentheses|
+|剑指 Offer 22. 链表中倒数第k个节点|1|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
+|125. 验证回文串|1|https://leetcode-cn.com/problems/valid-palindrome|
+|142. 环形链表 II|1|https://leetcode-cn.com/problems/linked-list-cycle-ii|
\ No newline at end of file
diff --git a/tencent/algorithm.md b/tencent/algorithm.md
new file mode 100644
index 0000000..170b765
--- /dev/null
+++ b/tencent/algorithm.md
@@ -0,0 +1,37 @@
+# 算法
+若想按部门/难度/题型筛选题目，请进入[CodeTop](https://codetop.cc)查询
+|题目|出现次数|链接|
+|-|-|-|
+|206. 反转链表|5|https://leetcode-cn.com/problems/reverse-linked-list|
+|53. 最大子序和|4|https://leetcode-cn.com/problems/maximum-subarray|
+|1143. 最长公共子序列|3|https://leetcode-cn.com/problems/longest-common-subsequence|
+|442. 数组中重复的数据|2|https://leetcode-cn.com/problems/find-all-duplicates-in-an-array|
+|300. 最长上升子序列|2|https://leetcode-cn.com/problems/longest-increasing-subsequence|
+|8. 字符串转换整数 (atoi)|2|https://leetcode-cn.com/problems/string-to-integer-atoi|
+|215. 数组中的第K个最大元素|2|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|121. 买卖股票的最佳时机|2|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|141. 环形链表|1|https://leetcode-cn.com/problems/linked-list-cycle|
+|21. 合并两个有序链表|1|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|494. 目标和|1|https://leetcode-cn.com/problems/target-sum|
+|227. 基本计算器 II|1|https://leetcode-cn.com/problems/basic-calculator-ii|
+|72. 编辑距离|1|https://leetcode-cn.com/problems/edit-distance|
+|633. 平方数之和|1|https://leetcode-cn.com/problems/sum-of-square-numbers|
+|125. 验证回文串|1|https://leetcode-cn.com/problems/valid-palindrome|
+|152. 乘积最大子数组|1|https://leetcode-cn.com/problems/maximum-product-subarray|
+|15. 三数之和|1|https://leetcode-cn.com/problems/3sum|
+|105. 从前序与中序遍历序列构造二叉树|1|https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal|
+|148. 排序链表|1|https://leetcode-cn.com/problems/sort-list|
+|239. 滑动窗口最大值|1|https://leetcode-cn.com/problems/sliding-window-maximum|
+|22. 括号生成|1|https://leetcode-cn.com/problems/generate-parentheses|
+|75. 颜色分类|1|https://leetcode-cn.com/problems/sort-colors|
+|20. 有效的括号|1|https://leetcode-cn.com/problems/valid-parentheses|
+|169. 多数元素|1|https://leetcode-cn.com/problems/majority-element|
+|171. Excel表列序号|1|https://leetcode-cn.com/problems/excel-sheet-column-number|
+|5. 最长回文子串|1|https://leetcode-cn.com/problems/longest-palindromic-substring|
+|43. 字符串相乘|1|https://leetcode-cn.com/problems/multiply-strings|
+|63. 不同路径 II|1|https://leetcode-cn.com/problems/unique-paths-ii|
+|146. LRU缓存机制|1|https://leetcode-cn.com/problems/lru-cache|
+|补充题6. 手撕堆排序|1|https://leetcode-cn.com/problems/sort-an-array|
+|160. 相交链表|1|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
+|补充题4. 手撕快速排序|1|https://leetcode-cn.com/problems/sort-an-array|
+|113. 路径总和 II|1|https://leetcode-cn.com/problems/path-sum-ii|
\ No newline at end of file
diff --git a/tencent/backend.md b/tencent/backend.md
new file mode 100644
index 0000000..0b52c21
--- /dev/null
+++ b/tencent/backend.md
@@ -0,0 +1,182 @@
+# 后端
+若想按部门/难度/题型筛选题目，请进入[CodeTop](https://codetop.cc)查询
+|题目|出现次数|链接|
+|-|-|-|
+|146. LRU缓存机制|32|https://leetcode-cn.com/problems/lru-cache|
+|206. 反转链表|30|https://leetcode-cn.com/problems/reverse-linked-list|
+|补充题4. 手撕快速排序|24|https://leetcode-cn.com/problems/sort-an-array|
+|21. 合并两个有序链表|18|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|470. 用 Rand7() 实现 Rand10()|15|https://leetcode-cn.com/problems/implement-rand10-using-rand7|
+|234. 回文链表|14|https://leetcode-cn.com/problems/palindrome-linked-list|
+|8. 字符串转换整数 (atoi)|13|https://leetcode-cn.com/problems/string-to-integer-atoi|
+|53. 最大子序和|12|https://leetcode-cn.com/problems/maximum-subarray|
+|460. LFU缓存|12|https://leetcode-cn.com/problems/lfu-cache|
+|215. 数组中的第K个最大元素|10|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|153. 寻找旋转排序数组中的最小值|10|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array|
+|3. 无重复字符的最长子串|10|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|704. 二分查找|10|https://leetcode-cn.com/problems/binary-search|
+|415. 字符串相加|10|https://leetcode-cn.com/problems/add-strings|
+|补充题6. 手撕堆排序|9|https://leetcode-cn.com/problems/sort-an-array|
+|剑指 Offer 54. 二叉搜索树的第k大节点|9|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-di-kda-jie-dian-lcof|
+|160. 相交链表|8|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
+|141. 环形链表|8|https://leetcode-cn.com/problems/linked-list-cycle|
+|151. 翻转字符串里的单词|8|https://leetcode-cn.com/problems/reverse-words-in-a-string|
+|4. 寻找两个正序数组的中位数|7|https://leetcode-cn.com/problems/median-of-two-sorted-arrays|
+|42. 接雨水|7|https://leetcode-cn.com/problems/trapping-rain-water|
+|102. 二叉树的层序遍历|7|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|144. 二叉树的前序遍历|7|https://leetcode-cn.com/problems/binary-tree-preorder-traversal|
+|300. 最长上升子序列|6|https://leetcode-cn.com/problems/longest-increasing-subsequence|
+|110. 平衡二叉树|6|https://leetcode-cn.com/problems/balanced-binary-tree|
+|2. 两数相加|6|https://leetcode-cn.com/problems/add-two-numbers|
+|70. 爬楼梯|6|https://leetcode-cn.com/problems/climbing-stairs|
+|213. 打家劫舍 II|6|https://leetcode-cn.com/problems/house-robber-ii|
+|5. 最长回文子串|6|https://leetcode-cn.com/problems/longest-palindromic-substring|
+|494. 目标和|6|https://leetcode-cn.com/problems/target-sum|
+|15. 三数之和|6|https://leetcode-cn.com/problems/3sum|
+|1. 两数之和|5|https://leetcode-cn.com/problems/two-sum|
+|239. 滑动窗口最大值|5|https://leetcode-cn.com/problems/sliding-window-maximum|
+|136. 只出现一次的数字|5|https://leetcode-cn.com/problems/single-number|
+|25. K 个一组翻转链表|5|https://leetcode-cn.com/problems/reverse-nodes-in-k-group|
+|232. 用栈实现队列|5|https://leetcode-cn.com/problems/implement-queue-using-stacks|
+|155. 最小栈|5|https://leetcode-cn.com/problems/min-stack|
+|104. 二叉树的最大深度|5|https://leetcode-cn.com/problems/maximum-depth-of-binary-tree|
+|剑指 Offer 22. 链表中倒数第k个节点|5|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
+|322. 零钱兑换|5|https://leetcode-cn.com/problems/coin-change|
+|525. 连续数组|5|https://leetcode-cn.com/problems/contiguous-array|
+|169. 多数元素|4|https://leetcode-cn.com/problems/majority-element|
+|236. 二叉树的最近公共祖先|4|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree|
+|328. 奇偶链表|4|https://leetcode-cn.com/problems/odd-even-linked-list|
+|9. 回文数|4|https://leetcode-cn.com/problems/palindrome-number|
+|112. 路径总和|4|https://leetcode-cn.com/problems/path-sum|
+|142. 环形链表 II|4|https://leetcode-cn.com/problems/linked-list-cycle-ii|
+|54. 螺旋矩阵|4|https://leetcode-cn.com/problems/spiral-matrix|
+|240. 搜索二维矩阵 II|4|https://leetcode-cn.com/problems/search-a-2d-matrix-ii|
+|20. 有效的括号|4|https://leetcode-cn.com/problems/valid-parentheses|
+|706. 设计哈希映射|4|https://leetcode-cn.com/problems/design-hashmap|
+|678. 有效的括号字符串|4|https://leetcode-cn.com/problems/valid-parenthesis-string|
+|补充题5. 手撕归并排序|4|https://leetcode-cn.com/problems/sort-an-array|
+|31. 下一个排列|4|https://leetcode-cn.com/problems/next-permutation|
+|33. 搜索旋转排序数组|4|https://leetcode-cn.com/problems/search-in-rotated-sorted-array|
+|199. 二叉树的右视图|4|https://leetcode-cn.com/problems/binary-tree-right-side-view|
+|887. 鸡蛋掉落|4|https://leetcode-cn.com/problems/super-egg-drop|
+|46. 全排列|4|https://leetcode-cn.com/problems/permutations|
+|88. 合并两个有序数组|4|https://leetcode-cn.com/problems/merge-sorted-array|
+|23. 合并K个排序链表|3|https://leetcode-cn.com/problems/merge-k-sorted-lists|
+|189. 旋转数组|3|https://leetcode-cn.com/problems/rotate-array|
+|59. 螺旋矩阵 II|3|https://leetcode-cn.com/problems/spiral-matrix-ii|
+|43. 字符串相乘|3|https://leetcode-cn.com/problems/multiply-strings|
+|384. 打乱数组|3|https://leetcode-cn.com/problems/shuffle-an-array|
+|172. 阶乘后的零|3|https://leetcode-cn.com/problems/factorial-trailing-zeroes|
+|227. 基本计算器 II|3|https://leetcode-cn.com/problems/basic-calculator-ii|
+|718. 最长重复子数组|3|https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray|
+|394. 字符串解码|3|https://leetcode-cn.com/problems/decode-string|
+|69. x 的平方根|3|https://leetcode-cn.com/problems/sqrtx|
+|148. 排序链表|3|https://leetcode-cn.com/problems/sort-list|
+|143. 重排链表|3|https://leetcode-cn.com/problems/reorder-list|
+|121. 买卖股票的最佳时机|2|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|37. 解数独|2|https://leetcode-cn.com/problems/sudoku-solver|
+|剑指 Offer 42. 连续子数组的最大和|2|https://leetcode-cn.com/problems/lian-xu-zi-shu-zu-de-zui-da-he-lcof|
+|287. 寻找重复数|2|https://leetcode-cn.com/problems/find-the-duplicate-number|
+|129. 求根到叶子节点数字之和|2|https://leetcode-cn.com/problems/sum-root-to-leaf-numbers|
+|78. 子集|2|https://leetcode-cn.com/problems/subsets|
+|剑指 Offer 03. 数组中重复的数字|2|https://leetcode-cn.com/problems/shu-zu-zhong-zhong-fu-de-shu-zi-lcof|
+|93. 复原IP地址|2|https://leetcode-cn.com/problems/restore-ip-addresses|
+|82. 删除排序链表中的重复元素 II|2|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list-ii|
+|138. 复制带随机指针的链表|2|https://leetcode-cn.com/problems/copy-list-with-random-pointer|
+|113. 路径总和 II|2|https://leetcode-cn.com/problems/path-sum-ii|
+|剑指 Offer 65. 不用加减乘除做加法|2|https://leetcode-cn.com/problems/bu-yong-jia-jian-cheng-chu-zuo-jia-fa-lcof|
+|459. 重复的子字符串|2|https://leetcode-cn.com/problems/repeated-substring-pattern|
+|19. 删除链表的倒数第N个节点|2|https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list|
+|11. 盛最多水的容器|2|https://leetcode-cn.com/problems/container-with-most-water|
+|26. 删除排序数组中的重复项|2|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array|
+|103. 二叉树的锯齿形层次遍历|2|https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal|
+|补充题21. 字符串相减|2|https://mp.weixin.qq.com/s/kCue4c0gnLSw0HosFl_t7w|
+|907. 子数组的最小值之和|2|https://leetcode-cn.com/problems/sum-of-subarray-minimums|
+|补充题22. IP地址与整数的转换|2|https://mp.weixin.qq.com/s/u-RahFTB3JIqND41HqtotQ|
+|692. 前K个高频单词|2|https://leetcode-cn.com/problems/top-k-frequent-words|
+|200. 岛屿数量|2|https://leetcode-cn.com/problems/number-of-islands|
+|14. 最长公共前缀|2|https://leetcode-cn.com/problems/longest-common-prefix|
+|118. 杨辉三角|2|https://leetcode-cn.com/problems/pascals-triangle|
+|剑指 Offer 57 - II. 和为s的连续正数序列|2|https://leetcode-cn.com/problems/he-wei-sde-lian-xu-zheng-shu-xu-lie-lcof|
+|剑指 Offer 40. 最小的k个数|2|https://leetcode-cn.com/problems/zui-xiao-de-kge-shu-lcof|
+|378. 有序矩阵中第K小的元素|2|https://leetcode-cn.com/problems/kth-smallest-element-in-a-sorted-matrix|
+|48. 旋转图像|2|https://leetcode-cn.com/problems/rotate-image|
+|480. 滑动窗口中位数|2|https://leetcode-cn.com/problems/sliding-window-median|
+|1095. 山脉数组中查找目标值|2|https://leetcode-cn.com/problems/find-in-mountain-array|
+|405. 数字转换为十六进制数|2|https://leetcode-cn.com/problems/convert-a-number-to-hexadecimal|
+|92. 反转链表 II|2|https://leetcode-cn.com/problems/reverse-linked-list-ii|
+|876. 链表的中间结点|2|https://leetcode-cn.com/problems/middle-of-the-linked-list|
+|剑指 Offer 24. 反转链表|1|https://leetcode-cn.com/problems/fan-zhuan-lian-biao-lcof|
+|409. 最长回文串|1|https://leetcode-cn.com/problems/longest-palindrome|
+|224. 基本计算器|1|https://leetcode-cn.com/problems/basic-calculator|
+|94. 二叉树的中序遍历|1|https://leetcode-cn.com/problems/binary-tree-inorder-traversal|
+|530. 二叉搜索树的最小绝对差|1|https://leetcode-cn.com/problems/minimum-absolute-difference-in-bst|
+|315. 计算右侧小于当前元素的个数|1|https://leetcode-cn.com/problems/count-of-smaller-numbers-after-self|
+|260. 只出现一次的数字 III|1|https://leetcode-cn.com/problems/single-number-iii|
+|679. 24 点游戏|1|https://leetcode-cn.com/problems/24-game|
+|994. 腐烂的橘子|1|https://leetcode-cn.com/problems/rotting-oranges|
+|588. 设计内存文件系统|1|https://leetcode-cn.com/problems/design-in-memory-file-system|
+|125. 验证回文串|1|https://leetcode-cn.com/problems/valid-palindrome|
+|41. 缺失的第一个正数|1|https://leetcode-cn.com/problems/first-missing-positive|
+|337. 打家劫舍 III|1|https://leetcode-cn.com/problems/house-robber-iii|
+|226. 翻转二叉树|1|https://leetcode-cn.com/problems/invert-binary-tree|
+|剑指 Offer 51. 数组中的逆序对|1|https://leetcode-cn.com/problems/shu-zu-zhong-de-ni-xu-dui-lcof|
+|补充题17. 两个有序数组第k小的数|1||
+|217. 存在重复元素|1|https://leetcode-cn.com/problems/contains-duplicate|
+|242. 有效的字母异位词|1|https://leetcode-cn.com/problems/valid-anagram|
+|63. 不同路径 II|1|https://leetcode-cn.com/problems/unique-paths-ii|
+|74. 搜索二维矩阵|1|https://leetcode-cn.com/problems/search-a-2d-matrix|
+|701. 二叉搜索树中的插入操作|1|https://leetcode-cn.com/problems/insert-into-a-binary-search-tree|
+|1047. 删除字符串中的所有相邻重复项|1|https://leetcode-cn.com/problems/remove-all-adjacent-duplicates-in-string|
+|75. 颜色分类|1|https://leetcode-cn.com/problems/sort-colors|
+|补充题14. 阿拉伯数字转中文数字|1||
+|134. 加油站|1|https://leetcode-cn.com/problems/gas-station|
+|231. 2的幂|1|https://leetcode-cn.com/problems/power-of-two|
+|451. 根据字符出现频率排序|1|https://leetcode-cn.com/problems/sort-characters-by-frequency|
+|24. 两两交换链表中的节点|1|https://leetcode-cn.com/problems/swap-nodes-in-pairs|
+|剑指 Offer 10- I. 斐波那契数列|1|https://leetcode-cn.com/problems/fei-bo-na-qi-shu-lie-lcof|
+|7. 整数反转|1|https://leetcode-cn.com/problems/reverse-integer|
+|316. 去除重复字母|1|https://leetcode-cn.com/problems/remove-duplicate-letters|
+|117. 填充每个节点的下一个右侧节点指针 II|1|https://leetcode-cn.com/problems/populating-next-right-pointers-in-each-node-ii|
+|61. 旋转链表|1|https://leetcode-cn.com/problems/rotate-list|
+|283. 移动零|1|https://leetcode-cn.com/problems/move-zeroes|
+|剑指 Offer 36. 二叉搜索树与双向链表|1|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-yu-shuang-xiang-lian-biao-lcof|
+|128. 最长连续序列|1|https://leetcode-cn.com/problems/longest-consecutive-sequence|
+|1044. 最长重复子串|1|https://leetcode-cn.com/problems/longest-duplicate-substring|
+|76. 最小覆盖子串|1|https://leetcode-cn.com/problems/minimum-window-substring|
+|50. Pow(x, n)|1|https://leetcode-cn.com/problems/powx-n|
+|162. 寻找峰值|1|https://leetcode-cn.com/problems/find-peak-element|
+|208. 实现 Trie (前缀树)|1|https://leetcode-cn.com/problems/implement-trie-prefix-tree|
+|179. 最大数|1|https://leetcode-cn.com/problems/largest-number|
+|728. 自除数|1|https://leetcode-cn.com/problems/self-dividing-numbers|
+|391. 完美矩形|1|https://leetcode-cn.com/problems/perfect-rectangle|
+|523. 连续的子数组和|1|https://leetcode-cn.com/problems/continuous-subarray-sum|
+|137. 只出现一次的数字 II|1|https://leetcode-cn.com/problems/single-number-ii|
+|598. 范围求和 II|1|https://leetcode-cn.com/problems/range-addition-ii|
+|258. 各位相加|1|https://leetcode-cn.com/problems/add-digits|
+|443. 压缩字符串|1|https://leetcode-cn.com/problems/string-compression|
+|72. 编辑距离|1|https://leetcode-cn.com/problems/edit-distance|
+|292. Nim 游戏|1|https://leetcode-cn.com/problems/nim-game|
+|297. 二叉树的序列化与反序列化|1|https://leetcode-cn.com/problems/serialize-and-deserialize-binary-tree|
+|518. 零钱兑换 II|1|https://leetcode-cn.com/problems/coin-change-2|
+|剑指 Offer 11. 旋转数组的最小数字|1|https://leetcode-cn.com/problems/xuan-zhuan-shu-zu-de-zui-xiao-shu-zi-lcof|
+|剑指 Offer 32 - III. 从上到下打印二叉树 III|1|https://leetcode-cn.com/problems/cong-shang-dao-xia-da-yin-er-cha-shu-iii-lcof|
+|622. 设计循环队列|1|https://leetcode-cn.com/problems/design-circular-queue|
+|1299. 将每个元素替换为右侧最大元素|1|https://leetcode-cn.com/problems/replace-elements-with-greatest-element-on-right-side|
+|67. 二进制求和|1|https://leetcode-cn.com/problems/add-binary|
+|64. 最小路径和|1|https://leetcode-cn.com/problems/minimum-path-sum|
+|剑指 Offer 52. 两个链表的第一个公共节点|1|https://leetcode-cn.com/problems/liang-ge-lian-biao-de-di-yi-ge-gong-gong-jie-dian-lcof|
+|560. 和为K的子数组|1|https://leetcode-cn.com/problems/subarray-sum-equals-k|
+|28. 实现 strStr()|1|https://leetcode-cn.com/problems/implement-strstr|
+|84. 柱状图中最大的矩形|1|https://leetcode-cn.com/problems/largest-rectangle-in-histogram|
+|295. 数据流的中位数|1|https://leetcode-cn.com/problems/find-median-from-data-stream|
+|225. 用队列实现栈|1|https://leetcode-cn.com/problems/implement-stack-using-queues|
+|剑指 Offer 09. 用两个栈实现队列|1|https://leetcode-cn.com/problems/yong-liang-ge-zhan-shi-xian-dui-lie-lcof|
+|442. 数组中重复的数据|1|https://leetcode-cn.com/problems/find-all-duplicates-in-an-array|
+|381. O(1) 时间插入、删除和获取随机元素 - 允许重复|1|https://leetcode-cn.com/problems/insert-delete-getrandom-o1-duplicates-allowed|
+|695. 岛屿的最大面积|1|https://leetcode-cn.com/problems/max-area-of-island|
+|111. 二叉树的最小深度|1|https://leetcode-cn.com/problems/minimum-depth-of-binary-tree|
+|567. 字符串的排列|1|https://leetcode-cn.com/problems/permutation-in-string|
+|107. 二叉树的层次遍历 II|1|https://leetcode-cn.com/problems/binary-tree-level-order-traversal-ii|
+|1219. 黄金矿工|1|https://leetcode-cn.com/problems/path-with-maximum-gold|
+|剑指 Offer 16. 数值的整数次方|1|https://leetcode-cn.com/problems/shu-zhi-de-zheng-shu-ci-fang-lcof|
\ No newline at end of file
diff --git a/tencent/client.md b/tencent/client.md
new file mode 100644
index 0000000..82b62e1
--- /dev/null
+++ b/tencent/client.md
@@ -0,0 +1,68 @@
+# 客户端
+若想按部门/难度/题型筛选题目，请进入[CodeTop](https://codetop.cc)查询
+|题目|出现次数|链接|
+|-|-|-|
+|1. 两数之和|4|https://leetcode-cn.com/problems/two-sum|
+|剑指 Offer 54. 二叉搜索树的第k大节点|3|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-di-kda-jie-dian-lcof|
+|300. 最长上升子序列|3|https://leetcode-cn.com/problems/longest-increasing-subsequence|
+|21. 合并两个有序链表|3|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|206. 反转链表|3|https://leetcode-cn.com/problems/reverse-linked-list|
+|415. 字符串相加|3|https://leetcode-cn.com/problems/add-strings|
+|141. 环形链表|2|https://leetcode-cn.com/problems/linked-list-cycle|
+|227. 基本计算器 II|2|https://leetcode-cn.com/problems/basic-calculator-ii|
+|215. 数组中的第K个最大元素|2|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|704. 二分查找|2|https://leetcode-cn.com/problems/binary-search|
+|151. 翻转字符串里的单词|2|https://leetcode-cn.com/problems/reverse-words-in-a-string|
+|1143. 最长公共子序列|2|https://leetcode-cn.com/problems/longest-common-subsequence|
+|234. 回文链表|2|https://leetcode-cn.com/problems/palindrome-linked-list|
+|补充题4. 手撕快速排序|2|https://leetcode-cn.com/problems/sort-an-array|
+|678. 有效的括号字符串|2|https://leetcode-cn.com/problems/valid-parenthesis-string|
+|4. 寻找两个正序数组的中位数|2|https://leetcode-cn.com/problems/median-of-two-sorted-arrays|
+|62. 不同路径|2|https://leetcode-cn.com/problems/unique-paths|
+|125. 验证回文串|2|https://leetcode-cn.com/problems/valid-palindrome|
+|补充题19. 判断一个点是否在三角形内|1|https://mp.weixin.qq.com/s/qnVUJq4lmnLsXJgyHCXngA|
+|31. 下一个排列|1|https://leetcode-cn.com/problems/next-permutation|
+|160. 相交链表|1|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
+|剑指 Offer 22. 链表中倒数第k个节点|1|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
+|16. 最接近的三数之和|1|https://leetcode-cn.com/problems/3sum-closest|
+|287. 寻找重复数|1|https://leetcode-cn.com/problems/find-the-duplicate-number|
+|405. 数字转换为十六进制数|1|https://leetcode-cn.com/problems/convert-a-number-to-hexadecimal|
+|207. 课程表|1|https://leetcode-cn.com/problems/course-schedule|
+|补充题6. 手撕堆排序|1|https://leetcode-cn.com/problems/sort-an-array|
+|104. 二叉树的最大深度|1|https://leetcode-cn.com/problems/maximum-depth-of-binary-tree|
+|200. 岛屿数量|1|https://leetcode-cn.com/problems/number-of-islands|
+|45. 跳跃游戏 II|1|https://leetcode-cn.com/problems/jump-game-ii|
+|剑指 Offer 41. 数据流中的中位数|1|https://leetcode-cn.com/problems/shu-ju-liu-zhong-de-zhong-wei-shu-lcof|
+|718. 最长重复子数组|1|https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray|
+|10. 正则表达式匹配|1|https://leetcode-cn.com/problems/regular-expression-matching|
+|53. 最大子序和|1|https://leetcode-cn.com/problems/maximum-subarray|
+|剑指 Offer 11. 旋转数组的最小数字|1|https://leetcode-cn.com/problems/xuan-zhuan-shu-zu-de-zui-xiao-shu-zi-lcof|
+|470. 用 Rand7() 实现 Rand10()|1|https://leetcode-cn.com/problems/implement-rand10-using-rand7|
+|20. 有效的括号|1|https://leetcode-cn.com/problems/valid-parentheses|
+|498. 对角线遍历|1|https://leetcode-cn.com/problems/diagonal-traverse|
+|179. 最大数|1|https://leetcode-cn.com/problems/largest-number|
+|236. 二叉树的最近公共祖先|1|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree|
+|153. 寻找旋转排序数组中的最小值|1|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array|
+|128. 最长连续序列|1|https://leetcode-cn.com/problems/longest-consecutive-sequence|
+|43. 字符串相乘|1|https://leetcode-cn.com/problems/multiply-strings|
+|171. Excel表列序号|1|https://leetcode-cn.com/problems/excel-sheet-column-number|
+|876. 链表的中间结点|1|https://leetcode-cn.com/problems/middle-of-the-linked-list|
+|2. 两数相加|1|https://leetcode-cn.com/problems/add-two-numbers|
+|59. 螺旋矩阵 II|1|https://leetcode-cn.com/problems/spiral-matrix-ii|
+|1312. 让字符串成为回文串的最少插入次数|1|https://leetcode-cn.com/problems/minimum-insertion-steps-to-make-a-string-palindrome|
+|169. 多数元素|1|https://leetcode-cn.com/problems/majority-element|
+|384. 打乱数组|1|https://leetcode-cn.com/problems/shuffle-an-array|
+|442. 数组中重复的数据|1|https://leetcode-cn.com/problems/find-all-duplicates-in-an-array|
+|144. 二叉树的前序遍历|1|https://leetcode-cn.com/problems/binary-tree-preorder-traversal|
+|692. 前K个高频单词|1|https://leetcode-cn.com/problems/top-k-frequent-words|
+|167. 两数之和 II - 输入有序数组|1|https://leetcode-cn.com/problems/two-sum-ii-input-array-is-sorted|
+|459. 重复的子字符串|1|https://leetcode-cn.com/problems/repeated-substring-pattern|
+|26. 删除排序数组中的重复项|1|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array|
+|120. 三角形最小路径和|1|https://leetcode-cn.com/problems/triangle|
+|7. 整数反转|1|https://leetcode-cn.com/problems/reverse-integer|
+|54. 螺旋矩阵|1|https://leetcode-cn.com/problems/spiral-matrix|
+|232. 用栈实现队列|1|https://leetcode-cn.com/problems/implement-queue-using-stacks|
+|155. 最小栈|1|https://leetcode-cn.com/problems/min-stack|
+|23. 合并K个排序链表|1|https://leetcode-cn.com/problems/merge-k-sorted-lists|
+|剑指 Offer 10- I. 斐波那契数列|1|https://leetcode-cn.com/problems/fei-bo-na-qi-shu-lie-lcof|
+|887. 鸡蛋掉落|1|https://leetcode-cn.com/problems/super-egg-drop|
\ No newline at end of file
diff --git a/tencent/frontend.md b/tencent/frontend.md
new file mode 100644
index 0000000..c06338e
--- /dev/null
+++ b/tencent/frontend.md
@@ -0,0 +1,66 @@
+# 前端
+若想按部门/难度/题型筛选题目，请进入[CodeTop](https://codetop.cc)查询
+|题目|出现次数|链接|
+|-|-|-|
+|415. 字符串相加|14|https://leetcode-cn.com/problems/add-strings|
+|1. 两数之和|4|https://leetcode-cn.com/problems/two-sum|
+|704. 二分查找|4|https://leetcode-cn.com/problems/binary-search|
+|198. 打家劫舍|4|https://leetcode-cn.com/problems/house-robber|
+|165. 比较版本号|3|https://leetcode-cn.com/problems/compare-version-numbers|
+|215. 数组中的第K个最大元素|3|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|补充题22. IP地址与整数的转换|3|https://mp.weixin.qq.com/s/u-RahFTB3JIqND41HqtotQ|
+|384. 打乱数组|3|https://leetcode-cn.com/problems/shuffle-an-array|
+|22. 括号生成|3|https://leetcode-cn.com/problems/generate-parentheses|
+|70. 爬楼梯|2|https://leetcode-cn.com/problems/climbing-stairs|
+|121. 买卖股票的最佳时机|2|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|146. LRU缓存机制|2|https://leetcode-cn.com/problems/lru-cache|
+|206. 反转链表|2|https://leetcode-cn.com/problems/reverse-linked-list|
+|21. 合并两个有序链表|2|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|8. 字符串转换整数 (atoi)|2|https://leetcode-cn.com/problems/string-to-integer-atoi|
+|543. 二叉树的直径|2|https://leetcode-cn.com/problems/diameter-of-binary-tree|
+|剑指 Offer 29. 顺时针打印矩阵|2|https://leetcode-cn.com/problems/shun-shi-zhen-da-yin-ju-zhen-lcof|
+|20. 有效的括号|2|https://leetcode-cn.com/problems/valid-parentheses|
+|88. 合并两个有序数组|2|https://leetcode-cn.com/problems/merge-sorted-array|
+|153. 寻找旋转排序数组中的最小值|2|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array|
+|25. K 个一组翻转链表|2|https://leetcode-cn.com/problems/reverse-nodes-in-k-group|
+|3. 无重复字符的最长子串|2|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|287. 寻找重复数|1|https://leetcode-cn.com/problems/find-the-duplicate-number|
+|59. 螺旋矩阵 II|1|https://leetcode-cn.com/problems/spiral-matrix-ii|
+|191. 位1的个数|1|https://leetcode-cn.com/problems/number-of-1-bits|
+|160. 相交链表|1|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
+|144. 二叉树的前序遍历|1|https://leetcode-cn.com/problems/binary-tree-preorder-traversal|
+|补充题4. 手撕快速排序|1|https://leetcode-cn.com/problems/sort-an-array|
+|214. 最短回文串|1|https://leetcode-cn.com/problems/shortest-palindrome|
+|61. 旋转链表|1|https://leetcode-cn.com/problems/rotate-list|
+|179. 最大数|1|https://leetcode-cn.com/problems/largest-number|
+|112. 路径总和|1|https://leetcode-cn.com/problems/path-sum|
+|141. 环形链表|1|https://leetcode-cn.com/problems/linked-list-cycle|
+|剑指 Offer 22. 链表中倒数第k个节点|1|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
+|300. 最长上升子序列|1|https://leetcode-cn.com/problems/longest-increasing-subsequence|
+|349. 两个数组的交集|1|https://leetcode-cn.com/problems/intersection-of-two-arrays|
+|补充题21. 字符串相减|1|https://mp.weixin.qq.com/s/kCue4c0gnLSw0HosFl_t7w|
+|剑指 Offer 34. 二叉树中和为某一值的路径|1|https://leetcode-cn.com/problems/er-cha-shu-zhong-he-wei-mou-yi-zhi-de-lu-jing-lcof|
+|19. 删除链表的倒数第N个节点|1|https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list|
+|2. 两数相加|1|https://leetcode-cn.com/problems/add-two-numbers|
+|53. 最大子序和|1|https://leetcode-cn.com/problems/maximum-subarray|
+|189. 旋转数组|1|https://leetcode-cn.com/problems/rotate-array|
+|4. 寻找两个正序数组的中位数|1|https://leetcode-cn.com/problems/median-of-two-sorted-arrays|
+|257. 二叉树的所有路径|1|https://leetcode-cn.com/problems/binary-tree-paths|
+|670. 最大交换|1|https://leetcode-cn.com/problems/maximum-swap|
+|283. 移动零|1|https://leetcode-cn.com/problems/move-zeroes|
+|148. 排序链表|1|https://leetcode-cn.com/problems/sort-list|
+|剑指 Offer 54. 二叉搜索树的第k大节点|1|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-di-kda-jie-dian-lcof|
+|110. 平衡二叉树|1|https://leetcode-cn.com/problems/balanced-binary-tree|
+|64. 最小路径和|1|https://leetcode-cn.com/problems/minimum-path-sum|
+|122. 买卖股票的最佳时机 II|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-ii|
+|115. 不同的子序列|1|https://leetcode-cn.com/problems/distinct-subsequences|
+|106. 从中序与后序遍历序列构造二叉树|1|https://leetcode-cn.com/problems/construct-binary-tree-from-inorder-and-postorder-traversal|
+|226. 翻转二叉树|1|https://leetcode-cn.com/problems/invert-binary-tree|
+|100. 相同的树|1|https://leetcode-cn.com/problems/same-tree|
+|129. 求根到叶子节点数字之和|1|https://leetcode-cn.com/problems/sum-root-to-leaf-numbers|
+|459. 重复的子字符串|1|https://leetcode-cn.com/problems/repeated-substring-pattern|
+|78. 子集|1|https://leetcode-cn.com/problems/subsets|
+|46. 全排列|1|https://leetcode-cn.com/problems/permutations|
+|55. 跳跃游戏|1|https://leetcode-cn.com/problems/jump-game|
+|1013. 将数组分成和相等的三个部分|1|https://leetcode-cn.com/problems/partition-array-into-three-parts-with-equal-sum|
+|33. 搜索旋转排序数组|1|https://leetcode-cn.com/problems/search-in-rotated-sorted-array|
\ No newline at end of file
diff --git a/tencent/test.md b/tencent/test.md
new file mode 100644
index 0000000..f538b38
--- /dev/null
+++ b/tencent/test.md
@@ -0,0 +1,31 @@
+# 测试
+若想按部门/难度/题型筛选题目，请进入[CodeTop](https://codetop.cc)查询
+|题目|出现次数|链接|
+|-|-|-|
+|3. 无重复字符的最长子串|7|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|227. 基本计算器 II|3|https://leetcode-cn.com/problems/basic-calculator-ii|
+|74. 搜索二维矩阵|3|https://leetcode-cn.com/problems/search-a-2d-matrix|
+|100. 相同的树|3|https://leetcode-cn.com/problems/same-tree|
+|153. 寻找旋转排序数组中的最小值|2|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array|
+|补充题4. 手撕快速排序|2|https://leetcode-cn.com/problems/sort-an-array|
+|20. 有效的括号|2|https://leetcode-cn.com/problems/valid-parentheses|
+|1143. 最长公共子序列|2|https://leetcode-cn.com/problems/longest-common-subsequence|
+|171. Excel表列序号|2|https://leetcode-cn.com/problems/excel-sheet-column-number|
+|46. 全排列|1|https://leetcode-cn.com/problems/permutations|
+|202. 快乐数|1|https://leetcode-cn.com/problems/happy-number|
+|134. 加油站|1|https://leetcode-cn.com/problems/gas-station|
+|470. 用 Rand7() 实现 Rand10()|1|https://leetcode-cn.com/problems/implement-rand10-using-rand7|
+|121. 买卖股票的最佳时机|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|442. 数组中重复的数据|1|https://leetcode-cn.com/problems/find-all-duplicates-in-an-array|
+|53. 最大子序和|1|https://leetcode-cn.com/problems/maximum-subarray|
+|剑指 Offer 62. 圆圈中最后剩下的数字|1|https://leetcode-cn.com/problems/yuan-quan-zhong-zui-hou-sheng-xia-de-shu-zi-lcof|
+|206. 反转链表|1|https://leetcode-cn.com/problems/reverse-linked-list|
+|106. 从中序与后序遍历序列构造二叉树|1|https://leetcode-cn.com/problems/construct-binary-tree-from-inorder-and-postorder-traversal|
+|14. 最长公共前缀|1|https://leetcode-cn.com/problems/longest-common-prefix|
+|55. 跳跃游戏|1|https://leetcode-cn.com/problems/jump-game|
+|136. 只出现一次的数字|1|https://leetcode-cn.com/problems/single-number|
+|821. 字符的最短距离|1|https://leetcode-cn.com/problems/shortest-distance-to-a-character|
+|43. 字符串相乘|1|https://leetcode-cn.com/problems/multiply-strings|
+|237. 删除链表中的节点|1|https://leetcode-cn.com/problems/delete-node-in-a-linked-list|
+|217. 存在重复元素|1|https://leetcode-cn.com/problems/contains-duplicate|
+|240. 搜索二维矩阵 II|1|https://leetcode-cn.com/problems/search-a-2d-matrix-ii|
\ No newline at end of file
diff --git a/yuanfudao/algorithm.md b/yuanfudao/algorithm.md
index 2e4e845..e05f277 100644
--- a/yuanfudao/algorithm.md
+++ b/yuanfudao/algorithm.md
@@ -1,10 +1,22 @@
-| 题目 | 频次 |
-|--------------------------|----|
-| 445\. 两数相加 II | 1 |
-| 543\. 二叉树的直径 | 1 |
-| 83\. 删除排序链表中的重复元素 | 1 |
-| 面试题 03\.05\. 栈排序 | 1 |
-| 1254\. 统计封闭岛屿的数目 | 1 |
-| 847\. 访问所有节点的最短路径 | 1 |
-| 25\. K 个一组翻转链表 | 1 |
-| 剑指 Offer 22\. 链表中倒数第k个节点 | 1 |
\ No newline at end of file
+# 算法
+
+|题目|出现次数|链接|
+|-|-|-|
+|445. 两数相加 II|2|https://leetcode-cn.com/problems/add-two-numbers-ii|
+|688. “马”在棋盘上的概率|1|https://leetcode-cn.com/problems/knight-probability-in-chessboard|
+|847. 访问所有节点的最短路径|1|https://leetcode-cn.com/problems/shortest-path-visiting-all-nodes|
+|340. 至多包含 K 个不同字符的最长子串|1|https://leetcode-cn.com/problems/longest-substring-with-at-most-k-distinct-characters|
+|827. 最大人工岛|1|https://leetcode-cn.com/problems/making-a-large-island|
+|1254. 统计封闭岛屿的数目|1|https://leetcode-cn.com/problems/number-of-closed-islands|
+|582. 杀死进程|1|https://leetcode-cn.com/problems/kill-process|
+|773. 滑动谜题|1|https://leetcode-cn.com/problems/sliding-puzzle|
+|83. 删除排序链表中的重复元素|1|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list|
+|207. 课程表|1|https://leetcode-cn.com/problems/course-schedule|
+|33. 搜索旋转排序数组|1|https://leetcode-cn.com/problems/search-in-rotated-sorted-array|
+|543. 二叉树的直径|1|https://leetcode-cn.com/problems/diameter-of-binary-tree|
+|692. 前K个高频单词|1|https://leetcode-cn.com/problems/top-k-frequent-words|
+|剑指 Offer 22. 链表中倒数第k个节点|1|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
+|424. 替换后的最长重复字符|1|https://leetcode-cn.com/problems/longest-repeating-character-replacement|
+|200. 岛屿数量|1|https://leetcode-cn.com/problems/number-of-islands|
+|25. K 个一组翻转链表|1|https://leetcode-cn.com/problems/reverse-nodes-in-k-group|
+|225. 用队列实现栈|1|https://leetcode-cn.com/problems/implement-stack-using-queues|
\ No newline at end of file
diff --git a/yuanfudao/backend.md b/yuanfudao/backend.md
index 2826d82..d81a65a 100644
--- a/yuanfudao/backend.md
+++ b/yuanfudao/backend.md
@@ -1,41 +1,145 @@
-| 题目 | 频次 |
-|--------------------------|----|
-| 189\. 旋转数组 | 3 |
-| 剑指 Offer 27\. 二叉树的镜像 | 3 |
-| 113\. 路径总和 II | 3 |
-| 1\. 两数之和 | 2 |
-| 面试题 03\.05\. 栈排序 | 2 |
-| 74\. 搜索二维矩阵 | 2 |
-| 110\. 平衡二叉树 | 2 |
-| 222\. 完全二叉树的节点个数 | 2 |
-| 25\. K 个一组翻转链表 | 2 |
-| 剑指 Offer 36\. 二叉搜索树与双向链表 | 2 |
-| 98\. 验证二叉搜索树 | 2 |
-| 215\. 数组中的第K个最大元素 | 2 |
-| 7\. 整数反转 | 1 |
-| 102\. 二叉树的层序遍历 | 1 |
-| 562\.矩阵中最长的连续1线段 | 1 |
-| 41\. 缺失的第一个正数 | 1 |
-| 448\. 找到所有数组中消失的数字 | 1 |
-| 82\. 删除排序链表中的重复元素 II | 1 |
-| 94\. 二叉树的中序遍历 | 1 |
-| 257\. 二叉树的所有路径 | 1 |
-| 124\. 二叉树中的最大路径和 | 1 |
-| 450\. 删除二叉搜索树中的节点 | 1 |
-| 40\. 组合总和 II | 1 |
-| 658\. 找到 K 个最接近的元素 | 1 |
-| 316\. 去除重复字母 | 1 |
-| 86\. 分隔链表 | 1 |
-| 226\. 翻转二叉树 | 1 |
-| 剑指 Offer 22\. 链表中倒数第k个节点 | 1 |
-| 560\. 和为K的子数组 | 1 |
-| 442\. 数组中重复的数据 | 1 |
-| 1325\. 删除给定值的叶子节点 | 1 |
-| 剑指 Offer 25\. 合并两个排序的链表 | 1 |
-| 240\. 搜索二维矩阵 II | 1 |
-| 958\. 二叉树的完全性检验 | 1 |
-| 239\. 滑动窗口最大值 | 1 |
-| 208\. 实现 Trie \(前缀树\) | 1 |
-| 99\. 恢复二叉搜索树 | 1 |
-| 83\. 删除排序链表中的重复元素 | 1 |
-| 301\. 删除无效的括号 | 1 |
+# 后端
+
+|题目|出现次数|链接|
+|-|-|-|
+|215. 数组中的第K个最大元素|10|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|92. 反转链表 II|7|https://leetcode-cn.com/problems/reverse-linked-list-ii|
+|剑指 Offer 36. 二叉搜索树与双向链表|7|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-yu-shuang-xiang-lian-biao-lcof|
+|98. 验证二叉搜索树|7|https://leetcode-cn.com/problems/validate-binary-search-tree|
+|148. 排序链表|7|https://leetcode-cn.com/problems/sort-list|
+|200. 岛屿数量|6|https://leetcode-cn.com/problems/number-of-islands|
+|328. 奇偶链表|6|https://leetcode-cn.com/problems/odd-even-linked-list|
+|23. 合并K个排序链表|5|https://leetcode-cn.com/problems/merge-k-sorted-lists|
+|306. 累加数|5|https://leetcode-cn.com/problems/additive-number|
+|110. 平衡二叉树|5|https://leetcode-cn.com/problems/balanced-binary-tree|
+|剑指 Offer 54. 二叉搜索树的第k大节点|5|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-di-kda-jie-dian-lcof|
+|56. 合并区间|5|https://leetcode-cn.com/problems/merge-intervals|
+|33. 搜索旋转排序数组|5|https://leetcode-cn.com/problems/search-in-rotated-sorted-array|
+|2. 两数相加|5|https://leetcode-cn.com/problems/add-two-numbers|
+|146. LRU缓存机制|4|https://leetcode-cn.com/problems/lru-cache|
+|94. 二叉树的中序遍历|4|https://leetcode-cn.com/problems/binary-tree-inorder-traversal|
+|93. 复原IP地址|4|https://leetcode-cn.com/problems/restore-ip-addresses|
+|113. 路径总和 II|4|https://leetcode-cn.com/problems/path-sum-ii|
+|239. 滑动窗口最大值|4|https://leetcode-cn.com/problems/sliding-window-maximum|
+|958. 二叉树的完全性检验|4|https://leetcode-cn.com/problems/check-completeness-of-a-binary-tree|
+|543. 二叉树的直径|4|https://leetcode-cn.com/problems/diameter-of-binary-tree|
+|25. K 个一组翻转链表|4|https://leetcode-cn.com/problems/reverse-nodes-in-k-group|
+|104. 二叉树的最大深度|4|https://leetcode-cn.com/problems/maximum-depth-of-binary-tree|
+|222. 完全二叉树的节点个数|3|https://leetcode-cn.com/problems/count-complete-tree-nodes|
+|83. 删除排序链表中的重复元素|3|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list|
+|64. 最小路径和|3|https://leetcode-cn.com/problems/minimum-path-sum|
+|695. 岛屿的最大面积|3|https://leetcode-cn.com/problems/max-area-of-island|
+|剑指 Offer 27. 二叉树的镜像|3|https://leetcode-cn.com/problems/er-cha-shu-de-jing-xiang-lcof|
+|74. 搜索二维矩阵|3|https://leetcode-cn.com/problems/search-a-2d-matrix|
+|142. 环形链表 II|3|https://leetcode-cn.com/problems/linked-list-cycle-ii|
+|369. 给单链表加一|3|https://leetcode-cn.com/problems/plus-one-linked-list|
+|189. 旋转数组|3|https://leetcode-cn.com/problems/rotate-array|
+|32. 最长有效括号|3|https://leetcode-cn.com/problems/longest-valid-parentheses|
+|498. 对角线遍历|3|https://leetcode-cn.com/problems/diagonal-traverse|
+|530. 二叉搜索树的最小绝对差|3|https://leetcode-cn.com/problems/minimum-absolute-difference-in-bst|
+|814. 二叉树剪枝|2|https://leetcode-cn.com/problems/binary-tree-pruning|
+|22. 括号生成|2|https://leetcode-cn.com/problems/generate-parentheses|
+|1026. 节点与其祖先之间的最大差值|2|https://leetcode-cn.com/problems/maximum-difference-between-node-and-ancestor|
+|199. 二叉树的右视图|2|https://leetcode-cn.com/problems/binary-tree-right-side-view|
+|69. x 的平方根|2|https://leetcode-cn.com/problems/sqrtx|
+|21. 合并两个有序链表|2|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|86. 分隔链表|2|https://leetcode-cn.com/problems/partition-list|
+|547. 省份数量（原朋友圈）|2|https://leetcode-cn.com/problems/number-of-provinces|
+|662. 二叉树最大宽度|2|https://leetcode-cn.com/problems/maximum-width-of-binary-tree|
+|34. 在排序数组中查找元素的第一个和最后一个位置|2|https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array|
+|674. 最长连续递增序列|2|https://leetcode-cn.com/problems/longest-continuous-increasing-subsequence|
+|101. 对称二叉树|2|https://leetcode-cn.com/problems/symmetric-tree|
+|986. 区间列表的交集|2|https://leetcode-cn.com/problems/interval-list-intersections|
+|剑指 Offer 22. 链表中倒数第k个节点|2|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
+|54. 螺旋矩阵|2|https://leetcode-cn.com/problems/spiral-matrix|
+|143. 重排链表|2|https://leetcode-cn.com/problems/reorder-list|
+|7. 整数反转|2|https://leetcode-cn.com/problems/reverse-integer|
+|386. 字典序排数|2|https://leetcode-cn.com/problems/lexicographical-numbers|
+|82. 删除排序链表中的重复元素 II|2|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list-ii|
+|232. 用栈实现队列|2|https://leetcode-cn.com/problems/implement-queue-using-stacks|
+|1038. 从二叉搜索树到更大和树|2|https://leetcode-cn.com/problems/binary-search-tree-to-greater-sum-tree|
+|206. 反转链表|2|https://leetcode-cn.com/problems/reverse-linked-list|
+|400. 第N个数字|2|https://leetcode-cn.com/problems/nth-digit|
+|221. 最大正方形|2|https://leetcode-cn.com/problems/maximal-square|
+|1. 两数之和|2|https://leetcode-cn.com/problems/two-sum|
+|5. 最长回文子串|2|https://leetcode-cn.com/problems/longest-palindromic-substring|
+|402. 移掉K位数字|2|https://leetcode-cn.com/problems/remove-k-digits|
+|52. N皇后 II|1|https://leetcode-cn.com/problems/n-queens-ii|
+|103. 二叉树的锯齿形层次遍历|1|https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal|
+|8. 字符串转换整数 (atoi)|1|https://leetcode-cn.com/problems/string-to-integer-atoi|
+|145. 二叉树的后序遍历|1|https://leetcode-cn.com/problems/binary-tree-postorder-traversal|
+|41. 缺失的第一个正数|1|https://leetcode-cn.com/problems/first-missing-positive|
+|剑指 Offer 45. 把数组排成最小的数|1|https://leetcode-cn.com/problems/ba-shu-zu-pai-cheng-zui-xiao-de-shu-lcof|
+|226. 翻转二叉树|1|https://leetcode-cn.com/problems/invert-binary-tree|
+|补充题12. 二叉树的下一个节点|1||
+|394. 字符串解码|1|https://leetcode-cn.com/problems/decode-string|
+|24. 两两交换链表中的节点|1|https://leetcode-cn.com/problems/swap-nodes-in-pairs|
+|141. 环形链表|1|https://leetcode-cn.com/problems/linked-list-cycle|
+|442. 数组中重复的数据|1|https://leetcode-cn.com/problems/find-all-duplicates-in-an-array|
+|补充题4. 手撕快速排序|1||
+|14. 最长公共前缀|1|https://leetcode-cn.com/problems/longest-common-prefix|
+|297. 二叉树的序列化与反序列化|1|https://leetcode-cn.com/problems/serialize-and-deserialize-binary-tree|
+|242. 有效的字母异位词|1|https://leetcode-cn.com/problems/valid-anagram|
+|235. 二叉搜索树的最近公共祖先|1|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-search-tree|
+|240. 搜索二维矩阵 II|1|https://leetcode-cn.com/problems/search-a-2d-matrix-ii|
+|349. 两个数组的交集|1|https://leetcode-cn.com/problems/intersection-of-two-arrays|
+|562. 矩阵中最长的连续1线段|1|https://leetcode-cn.com/problems/longest-line-of-consecutive-one-in-matrix|
+|305. 岛屿数量 II|1|https://leetcode-cn.com/problems/number-of-islands-ii|
+|99. 恢复二叉搜索树|1|https://leetcode-cn.com/problems/recover-binary-search-tree|
+|108. 将有序数组转换为二叉搜索树|1|https://leetcode-cn.com/problems/convert-sorted-array-to-binary-search-tree|
+|560. 和为K的子数组|1|https://leetcode-cn.com/problems/subarray-sum-equals-k|
+|62. 不同路径|1|https://leetcode-cn.com/problems/unique-paths|
+|26. 删除排序数组中的重复项|1|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array|
+|435. 无重叠区间|1|https://leetcode-cn.com/problems/non-overlapping-intervals|
+|136. 只出现一次的数字|1|https://leetcode-cn.com/problems/single-number|
+|889. 根据前序和后序遍历构造二叉树|1|https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-postorder-traversal|
+|剑指 Offer 09. 用两个栈实现队列|1|https://leetcode-cn.com/problems/yong-liang-ge-zhan-shi-xian-dui-lie-lcof|
+|236. 二叉树的最近公共祖先|1|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree|
+|329. 矩阵中的最长递增路径|1|https://leetcode-cn.com/problems/longest-increasing-path-in-a-matrix|
+|102. 二叉树的层序遍历|1|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|316. 去除重复字母|1|https://leetcode-cn.com/problems/remove-duplicate-letters|
+|312. 戳气球|1|https://leetcode-cn.com/problems/burst-balloons|
+|208. 实现 Trie (前缀树)|1|https://leetcode-cn.com/problems/implement-trie-prefix-tree|
+|405. 数字转换为十六进制数|1|https://leetcode-cn.com/problems/convert-a-number-to-hexadecimal|
+|704. 二分查找|1|https://leetcode-cn.com/problems/binary-search|
+|20. 有效的括号|1|https://leetcode-cn.com/problems/valid-parentheses|
+|516. 最长回文子序列|1|https://leetcode-cn.com/problems/longest-palindromic-subsequence|
+|151. 翻转字符串里的单词|1|https://leetcode-cn.com/problems/reverse-words-in-a-string|
+|416. 分割等和子集|1|https://leetcode-cn.com/problems/partition-equal-subset-sum|
+|572. 另一个树的子树|1|https://leetcode-cn.com/problems/subtree-of-another-tree|
+|450. 删除二叉搜索树中的节点|1|https://leetcode-cn.com/problems/delete-node-in-a-bst|
+|48. 旋转图像|1|https://leetcode-cn.com/problems/rotate-image|
+|剑指 Offer 25. 合并两个排序的链表|1|https://leetcode-cn.com/problems/he-bing-liang-ge-pai-xu-de-lian-biao-lcof|
+|4. 寻找两个正序数组的中位数|1|https://leetcode-cn.com/problems/median-of-two-sorted-arrays|
+|剑指 Offer 24. 反转链表|1|https://leetcode-cn.com/problems/fan-zhuan-lian-biao-lcof|
+|556. 下一个更大元素 III|1|https://leetcode-cn.com/problems/next-greater-element-iii|
+|658. 找到 K 个最接近的元素|1|https://leetcode-cn.com/problems/find-k-closest-elements|
+|剑指 Offer 11. 旋转数组的最小数字|1|https://leetcode-cn.com/problems/xuan-zhuan-shu-zu-de-zui-xiao-shu-zi-lcof|
+|17. 电话号码的字母组合|1|https://leetcode-cn.com/problems/letter-combinations-of-a-phone-number|
+|168. Excel表列名称|1|https://leetcode-cn.com/problems/excel-sheet-column-title|
+|43. 字符串相乘|1|https://leetcode-cn.com/problems/multiply-strings|
+|31. 下一个排列|1|https://leetcode-cn.com/problems/next-permutation|
+|105. 从前序与中序遍历序列构造二叉树|1|https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal|
+|468. 验证IP地址|1|https://leetcode-cn.com/problems/validate-ip-address|
+|109. 有序链表转换二叉搜索树|1|https://leetcode-cn.com/problems/convert-sorted-list-to-binary-search-tree|
+|71. 简化路径|1|https://leetcode-cn.com/problems/simplify-path|
+|124. 二叉树中的最大路径和|1|https://leetcode-cn.com/problems/binary-tree-maximum-path-sum|
+|79. 单词搜索|1|https://leetcode-cn.com/problems/word-search|
+|剑指 Offer 32 - I. 从上到下打印二叉树|1|https://leetcode-cn.com/problems/cong-shang-dao-xia-da-yin-er-cha-shu-lcof|
+|60. 第k个排列|1|https://leetcode-cn.com/problems/permutation-sequence|
+|130. 被围绕的区域|1|https://leetcode-cn.com/problems/surrounded-regions|
+|40. 组合总和 II|1|https://leetcode-cn.com/problems/combination-sum-ii|
+|59. 螺旋矩阵 II|1|https://leetcode-cn.com/problems/spiral-matrix-ii|
+|225. 用队列实现栈|1|https://leetcode-cn.com/problems/implement-stack-using-queues|
+|47. 全排列 II|1|https://leetcode-cn.com/problems/permutations-ii|
+|343. 整数拆分|1|https://leetcode-cn.com/problems/integer-break|
+|448. 找到所有数组中消失的数字|1|https://leetcode-cn.com/problems/find-all-numbers-disappeared-in-an-array|
+|152. 乘积最大子数组|1|https://leetcode-cn.com/problems/maximum-product-subarray|
+|259. 较小的三数之和|1|https://leetcode-cn.com/problems/3sum-smaller|
+|415. 字符串相加|1|https://leetcode-cn.com/problems/add-strings|
+|257. 二叉树的所有路径|1|https://leetcode-cn.com/problems/binary-tree-paths|
+|540. 有序数组中的单一元素|1|https://leetcode-cn.com/problems/single-element-in-a-sorted-array|
+|1325. 删除给定值的叶子节点|1|https://leetcode-cn.com/problems/delete-leaves-with-a-given-value|
+|160. 相交链表|1|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
+|42. 接雨水|1|https://leetcode-cn.com/problems/trapping-rain-water|
+|剑指 Offer 12. 矩阵中的路径|1|https://leetcode-cn.com/problems/ju-zhen-zhong-de-lu-jing-lcof|
\ No newline at end of file
diff --git a/yuanfudao/client.md b/yuanfudao/client.md
index d6369a1..974f715 100644
--- a/yuanfudao/client.md
+++ b/yuanfudao/client.md
@@ -1,9 +1,38 @@
-| 题目 | 频次 |
-|---------------------------|----|
-| 86\. 分隔链表 | 2 |
-| 剑指 Offer 54\. 二叉搜索树的第k大节点 | 1 |
-| 83\. 删除排序链表中的重复元素 | 1 |
-| 80\. 删除排序数组中的重复项 II | 1 |
-| 56\. 合并区间 | 1 |
-| 25\. K 个一组翻转链表 | 1 |
-| 236\. 二叉树的最近公共祖先 | 1 |
\ No newline at end of file
+# 客户端
+
+|题目|出现次数|链接|
+|-|-|-|
+|236. 二叉树的最近公共祖先|4|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree|
+|92. 反转链表 II|3|https://leetcode-cn.com/problems/reverse-linked-list-ii|
+|215. 数组中的第K个最大元素|2|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|141. 环形链表|2|https://leetcode-cn.com/problems/linked-list-cycle|
+|25. K 个一组翻转链表|2|https://leetcode-cn.com/problems/reverse-nodes-in-k-group|
+|148. 排序链表|2|https://leetcode-cn.com/problems/sort-list|
+|86. 分隔链表|2|https://leetcode-cn.com/problems/partition-list|
+|128. 最长连续序列|2|https://leetcode-cn.com/problems/longest-consecutive-sequence|
+|78. 子集|1|https://leetcode-cn.com/problems/subsets|
+|剑指 Offer 54. 二叉搜索树的第k大节点|1|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-di-kda-jie-dian-lcof|
+|206. 反转链表|1|https://leetcode-cn.com/problems/reverse-linked-list|
+|剑指 Offer 18. 删除链表的节点|1|https://leetcode-cn.com/problems/shan-chu-lian-biao-de-jie-dian-lcof|
+|24. 两两交换链表中的节点|1|https://leetcode-cn.com/problems/swap-nodes-in-pairs|
+|57. 插入区间|1|https://leetcode-cn.com/problems/insert-interval|
+|200. 岛屿数量|1|https://leetcode-cn.com/problems/number-of-islands|
+|42. 接雨水|1|https://leetcode-cn.com/problems/trapping-rain-water|
+|695. 岛屿的最大面积|1|https://leetcode-cn.com/problems/max-area-of-island|
+|915. 分割数组|1|https://leetcode-cn.com/problems/partition-array-into-disjoint-intervals|
+|143. 重排链表|1|https://leetcode-cn.com/problems/reorder-list|
+|540. 有序数组中的单一元素|1|https://leetcode-cn.com/problems/single-element-in-a-sorted-array|
+|865. 具有所有最深结点的最小子树|1|https://leetcode-cn.com/problems/smallest-subtree-with-all-the-deepest-nodes|
+|220. 存在重复元素 III|1|https://leetcode-cn.com/problems/contains-duplicate-iii|
+|80. 删除排序数组中的重复项 II|1|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array-ii|
+|701. 二叉搜索树中的插入操作|1|https://leetcode-cn.com/problems/insert-into-a-binary-search-tree|
+|83. 删除排序链表中的重复元素|1|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list|
+|319. 灯泡开关|1|https://leetcode-cn.com/problems/bulb-switcher|
+|240. 搜索二维矩阵 II|1|https://leetcode-cn.com/problems/search-a-2d-matrix-ii|
+|50. Pow(x, n)|1|https://leetcode-cn.com/problems/powx-n|
+|56. 合并区间|1|https://leetcode-cn.com/problems/merge-intervals|
+|73. 矩阵置零|1|https://leetcode-cn.com/problems/set-matrix-zeroes|
+|530. 二叉搜索树的最小绝对差|1|https://leetcode-cn.com/problems/minimum-absolute-difference-in-bst|
+|54. 螺旋矩阵|1|https://leetcode-cn.com/problems/spiral-matrix|
+|72. 编辑距离|1|https://leetcode-cn.com/problems/edit-distance|
+|1325. 删除给定值的叶子节点|1|https://leetcode-cn.com/problems/delete-leaves-with-a-given-value|
\ No newline at end of file
diff --git a/yuanfudao/data.md b/yuanfudao/data.md
index 2c65083..d4fae38 100644
--- a/yuanfudao/data.md
+++ b/yuanfudao/data.md
@@ -1,4 +1,15 @@
-| 题目 | 频次 |
-|----------------|----|
-| 518\. 零钱兑换 II | 1 |
-| 1143\. 最长公共子序列 | 1 |
\ No newline at end of file
+# 数据研发
+
+|题目|出现次数|链接|
+|-|-|-|
+|54. 螺旋矩阵|2|https://leetcode-cn.com/problems/spiral-matrix|
+|92. 反转链表 II|2|https://leetcode-cn.com/problems/reverse-linked-list-ii|
+|437. 路径总和 III|1|https://leetcode-cn.com/problems/path-sum-iii|
+|179. 最大数|1|https://leetcode-cn.com/problems/largest-number|
+|162. 寻找峰值|1|https://leetcode-cn.com/problems/find-peak-element|
+|56. 合并区间|1|https://leetcode-cn.com/problems/merge-intervals|
+|21. 合并两个有序链表|1|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|1143. 最长公共子序列|1|https://leetcode-cn.com/problems/longest-common-subsequence|
+|673. 最长递增子序列的个数|1|https://leetcode-cn.com/problems/number-of-longest-increasing-subsequence|
+|518. 零钱兑换 II|1|https://leetcode-cn.com/problems/coin-change-2|
+|39. 组合总和|1|https://leetcode-cn.com/problems/combination-sum|
\ No newline at end of file
diff --git a/yuanfudao/frontend.md b/yuanfudao/frontend.md
index be60127..a47ea13 100644
--- a/yuanfudao/frontend.md
+++ b/yuanfudao/frontend.md
@@ -1,17 +1,24 @@
-| 题目 | 频次 |
-|------------------------------------|----|
-| 102\. 二叉树的层序遍历 | 2 |
-| 56\. 合并区间 | 2 |
-| 199\. 二叉树的右视图 | 1 |
-| 面试题 02\.05\. 链表求和 | 1 |
-| 206\. 反转链表 | 1 |
-| 105\. 从前序与中序遍历序列构造二叉树 | 1 |
-| 674\. 最长连续递增序列 | 1 |
-| 剑指 Offer 46\. 把数字翻译成字符串 | 1 |
-| 557\. 反转字符串中的单词 III | 1 |
-| 153\. 寻找旋转排序数组中的最小值 | 1 |
-| 剑指 Offer 32 \- III\. 从上到下打印二叉树 III | 1 |
-| 剑指 Offer 29\. 顺时针打印矩阵 | 1 |
-| 179\. 最大数 | 1 |
-| 628\. 三个数的最大乘积 | 1 |
-| 328\. 奇偶链表 | 1 |
\ No newline at end of file
+# 前端
+
+|题目|出现次数|链接|
+|-|-|-|
+|56. 合并区间|2|https://leetcode-cn.com/problems/merge-intervals|
+|328. 奇偶链表|2|https://leetcode-cn.com/problems/odd-even-linked-list|
+|102. 二叉树的层序遍历|2|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
+|179. 最大数|2|https://leetcode-cn.com/problems/largest-number|
+|674. 最长连续递增序列|2|https://leetcode-cn.com/problems/longest-continuous-increasing-subsequence|
+|695. 岛屿的最大面积|1|https://leetcode-cn.com/problems/max-area-of-island|
+|剑指 Offer 32 - III. 从上到下打印二叉树 III|1|https://leetcode-cn.com/problems/cong-shang-dao-xia-da-yin-er-cha-shu-iii-lcof|
+|662. 二叉树最大宽度|1|https://leetcode-cn.com/problems/maximum-width-of-binary-tree|
+|105. 从前序与中序遍历序列构造二叉树|1|https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal|
+|21. 合并两个有序链表|1|https://leetcode-cn.com/problems/merge-two-sorted-lists|
+|153. 寻找旋转排序数组中的最小值|1|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array|
+|206. 反转链表|1|https://leetcode-cn.com/problems/reverse-linked-list|
+|151. 翻转字符串里的单词|1|https://leetcode-cn.com/problems/reverse-words-in-a-string|
+|557. 反转字符串中的单词 III|1|https://leetcode-cn.com/problems/reverse-words-in-a-string-iii|
+|628. 三个数的最大乘积|1|https://leetcode-cn.com/problems/maximum-product-of-three-numbers|
+|54. 螺旋矩阵|1|https://leetcode-cn.com/problems/spiral-matrix|
+|剑指 Offer 46. 把数字翻译成字符串|1|https://leetcode-cn.com/problems/ba-shu-zi-fan-yi-cheng-zi-fu-chuan-lcof|
+|199. 二叉树的右视图|1|https://leetcode-cn.com/problems/binary-tree-right-side-view|
+|32. 最长有效括号|1|https://leetcode-cn.com/problems/longest-valid-parentheses|
+|剑指 Offer 29. 顺时针打印矩阵|1|https://leetcode-cn.com/problems/shun-shi-zhen-da-yin-ju-zhen-lcof|
\ No newline at end of file
diff --git a/yuanfudao/new.md b/yuanfudao/new.md
deleted file mode 100644
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--- a/yuanfudao/new.md
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-猿辅导8月份面试考察到的题目
-# 后端
-| 题目 | 考察次数 |
-|----------------------------|---|
-| 215\. 数组中的第K个最大元素 | 6 |
-| 92\. 反转链表 II | 5 |
-| 200\. 岛屿数量 | 5 |
-| 328\. 奇偶链表 | 5 |
-| 33\. 搜索旋转排序数组 | 4 |
-| 306\. 累加数 | 4 |
-| 543\. 二叉树的直径 | 4 |
-| 56\. 合并区间 | 3 |
-| 530\. 二叉搜索树的最小绝对差 | 3 |
-| 94\. 二叉树的中序遍历 | 3 |
-| 110\. 平衡二叉树 | 3 |
-| 148\. 排序链表 | 3 |
-| 104\. 二叉树的最大深度 | 3 |
-| 剑指 Offer 54\. 二叉搜索树的第k大节点 | 3 |
-| 98\. 验证二叉搜索树 | 3 |
-| 2\. 两数相加 | 3 |
-| 814\. 二叉树剪枝 | 2 |
-| 221\. 最大正方形 | 2 |
-| 23\. 合并K个升序链表 | 2 |
-| 69\. x 的平方根 | 2 |
-| 1026\. 节点与其祖先之间的最大差值 | 2 |
-| 386\. 字典序排数 | 2 |
-| 146\. LRU缓存机制 | 2 |
-| 面试题 03\.05\. 栈排序 | 2 |
-| 239\. 滑动窗口最大值 | 2 |
-| 143\. 重排链表 | 2 |
-| 22\. 括号生成 | 2 |
-| 498\. 对角线遍历 | 2 |
-| 93\. 复原IP地址 | 2 |
-| 142\. 环形链表 II | 2 |
-| 面试题 08\.12\. 八皇后 | 2 |
-| 5\. 最长回文子串 | 2 |
-| 986\. 区间列表的交集 | 2 |
-| 206\. 反转链表 | 2 |
-| 236\. 二叉树的最近公共祖先 | 1 |
-| 297\. 二叉树的序列化与反序列化 | 1 |
-| 343\. 整数拆分 | 1 |
-| 20\. 有效的括号 | 1 |
-| 662\. 二叉树最大宽度 | 1 |
-| 109\. 有序链表转换二叉搜索树 | 1 |
-| 435\. 无重叠区间 | 1 |
-| 面试题 04\.06\. 后继者 | 1 |
-| 101\. 对称二叉树 | 1 |
-| 32\. 最长有效括号 | 1 |
-| 329\. 矩阵中的最长递增路径 | 1 |
-| 402\. 移掉K位数字 | 1 |
-| 21\. 合并两个有序链表 | 1 |
-| 145\. 二叉树的后序遍历 | 1 |
-| 43\. 字符串相乘 | 1 |
-| 369\. 给单链表加一 | 1 |
-| 7\. 整数反转 | 1 |
-| 141\. 环形链表 | 1 |
-| 71\. 简化路径 | 1 |
-| 剑指 Offer 36\. 二叉搜索树与双向链表 | 1 |
-| 572\. 另一个树的子树 | 1 |
-| 242\. 有效的字母异位词 | 1 |
-| 52\. N皇后 II | 1 |
-| 130\. 被围绕的区域 | 1 |
-| 958\. 二叉树的完全性检验 | 1 |
-| 305\. 岛屿数量 II | 1 |
-| 剑指 Offer 45\. 把数组排成最小的数 | 1 |
-| 54\. 螺旋矩阵 | 1 |
-| 31\. 下一个排列 | 1 |
-| 34\. 在排序数组中查找元素的第一个和最后一个位置 | 1 |
-| 64\. 最小路径和 | 1 |
-| 540\. 有序数组中的单一元素 | 1 |
-| 48\. 旋转图像 | 1 |
-| 136\. 只出现一次的数字 | 1 |
-| 82\. 删除排序链表中的重复元素 II | 1 |
-| 剑指 Offer 22\. 链表中倒数第k个节点 | 1 |
-| 86\. 分隔链表 | 1 |
-| 235\. 二叉搜索树的最近公共祖先 | 1 |
-| 83\. 删除排序链表中的重复元素 | 1 |
-| 103\. 二叉树的锯齿形层次遍历 | 1 |
-| 59\. 螺旋矩阵 II | 1 |
-
-# 客户端
-| 题号 | 考察次数 |
-|-----------------------|---|
-| 148\. 排序链表 | 2 |
-| 92\. 反转链表 II | 2 |
-| 215\. 数组中的第K个最大元素 | 2 |
-| 236\. 二叉树的最近公共祖先 | 2 |
-| 128\. 最长连续序列 | 2 |
-| 143\. 重排链表 | 1 |
-| 剑指 Offer 18\. 删除链表的节点 | 1 |
-| 72\. 编辑距离 | 1 |
-| 240\. 搜索二维矩阵 II | 1 |
-| 865\. 具有所有最深结点的最小子树 | 1 |
-| 141\. 环形链表 | 1 |
-| 25\. K 个一组翻转链表 | 1 |
-| 73\. 矩阵置零 | 1 |
-| 915\. 分割数组 | 1 |
-| 200\. 岛屿数量 | 1 |
-| 206\. 反转链表 | 1 |
-
-# 算法
-| 题号 | 考察次数 |
-|-------------------------|---|
-| 582\. 杀死进程 | 1 |
-| 340\. 至多包含 K 个不同字符的最长子串 | 1 |
-| 225\. 用队列实现栈 | 1 |
-| 424\. 替换后的最长重复字符 | 1 |
-| 33\. 搜索旋转排序数组 | 1 |
-| 773\. 滑动谜题 | 1 |
-| 827\. 最大人工岛 | 1 |
-| 688\. “马”在棋盘上的概率 | 1 |
-| 200\. 岛屿数量 | 1 |
-| 692\. 前K个高频单词 | 1 |
-
-# 前端
-| 题号 | 考察次数 |
-|-----------------|---|
-| 662\. 二叉树最大宽度 | 1 |
-| 695\. 岛屿的最大面积 | 1 |
-| 32\. 最长有效括号 | 1 |
-| 54\. 螺旋矩阵 | 1 |
-| 151\. 翻转字符串里的单词 | 1 |
-| 21\. 合并两个有序链表 | 1 |
-
-# 数据相关岗位
-| 题号 | 考察次数 |
-|------------------|---|
-| 54\. 螺旋矩阵 | 2 |
-| 92\. 反转链表 II | 2 |
-| 162\. 寻找峰值 | 1 |
-| 437\. 路径总和 III | 1 |
-| 673\. 最长递增子序列的个数 | 1 |
-| 21\. 合并两个有序链表 | 1 |
-| 56\. 合并区间 | 1 |
-
-
-
-
diff --git a/yuanfudao/test.md b/yuanfudao/test.md
index 5d3f3ca..254464c 100644
--- a/yuanfudao/test.md
+++ b/yuanfudao/test.md
@@ -1,5 +1,7 @@
-| 题目 | 频次 |
-|---------------|----|
-| 234\. 回文链表 | 1 |
-| 98\. 验证二叉搜索树 | 1 |
-| 662\. 二叉树最大宽度 | 1 |
\ No newline at end of file
+# 测试
+
+|题目|出现次数|链接|
+|-|-|-|
+|662. 二叉树最大宽度|2|https://leetcode-cn.com/problems/maximum-width-of-binary-tree|
+|234. 回文链表|2|https://leetcode-cn.com/problems/palindrome-linked-list|
+|98. 验证二叉搜索树|1|https://leetcode-cn.com/problems/validate-binary-search-tree|
\ No newline at end of file