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1 | 1 | |题目|出现次数|链接|
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2 | 2 | |-|-|-|
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3 | 3 | |215. 数组中的第K个最大元素|4|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
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| 4 | +|300. 最长上升子序列|3|https://leetcode-cn.com/problems/longest-increasing-subsequence| |
4 | 5 | |103. 二叉树的锯齿形层次遍历|3|https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal|
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| 6 | +|121. 买卖股票的最佳时机|2|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock| |
| 7 | +|49. 字母异位词分组|2|https://leetcode-cn.com/problems/group-anagrams| |
5 | 8 | |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|
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6 | 9 | |4. 寻找两个正序数组的中位数|2|https://leetcode-cn.com/problems/median-of-two-sorted-arrays|
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7 |
| -|300. 最长上升子序列|2|https://leetcode-cn.com/problems/longest-increasing-subsequence| |
8 |
| -|85. 最大矩形|2|https://leetcode-cn.com/problems/maximal-rectangle| |
9 | 10 | |23. 合并K个排序链表|2|https://leetcode-cn.com/problems/merge-k-sorted-lists|
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| 11 | +|85. 最大矩形|2|https://leetcode-cn.com/problems/maximal-rectangle| |
10 | 12 | |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|
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11 | 13 | |236. 二叉树的最近公共祖先|2|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree|
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12 | 14 | |200. 岛屿数量|2|https://leetcode-cn.com/problems/number-of-islands|
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13 | 15 | |46. 全排列|2|https://leetcode-cn.com/problems/permutations|
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14 |
| -|49. 字母异位词分组|2|https://leetcode-cn.com/problems/group-anagrams| |
15 |
| -|437. 路径总和 III|1|https://leetcode-cn.com/problems/path-sum-iii| |
16 |
| -|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| |
| 16 | +|33. 搜索旋转排序数组|1|https://leetcode-cn.com/problems/search-in-rotated-sorted-array| |
| 17 | +|509. 斐波那契数|1|https://leetcode-cn.com/problems/fibonacci-number| |
| 18 | +|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| |
| 19 | +|179. 最大数|1|https://leetcode-cn.com/problems/largest-number| |
| 20 | +|5. 最长回文子串|1|https://leetcode-cn.com/problems/longest-palindromic-substring| |
| 21 | +|15. 三数之和|1|https://leetcode-cn.com/problems/3sum| |
| 22 | +|3. 无重复字符的最长子串|1|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters| |
| 23 | +|240. 搜索二维矩阵 II|1|https://leetcode-cn.com/problems/search-a-2d-matrix-ii| |
17 | 24 | |376. 摆动序列|1|https://leetcode-cn.com/problems/wiggle-subsequence|
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18 | 25 | |445. 两数相加 II|1|https://leetcode-cn.com/problems/add-two-numbers-ii|
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| 26 | +|437. 路径总和 III|1|https://leetcode-cn.com/problems/path-sum-iii| |
| 27 | +|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| |
| 28 | +|32. 最长有效括号|1|https://leetcode-cn.com/problems/longest-valid-parentheses| |
19 | 29 | |152. 乘积最大子数组|1|https://leetcode-cn.com/problems/maximum-product-subarray|
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20 | 30 | |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|
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21 |
| -|32. 最长有效括号|1|https://leetcode-cn.com/problems/longest-valid-parentheses| |
22 |
| -|70. 爬楼梯|1|https://leetcode-cn.com/problems/climbing-stairs| |
23 | 31 | |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|
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| 32 | +|582. 杀死进程|1|https://leetcode-cn.com/problems/kill-process| |
24 | 33 | |297. 二叉树的序列化与反序列化|1|https://leetcode-cn.com/problems/serialize-and-deserialize-binary-tree|
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25 | 34 | |20. 有效的括号|1|https://leetcode-cn.com/problems/valid-parentheses|
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26 |
| -|518. 零钱兑换 II|1|https://leetcode-cn.com/problems/coin-change-2| |
| 35 | +|70. 爬楼梯|1|https://leetcode-cn.com/problems/climbing-stairs| |
27 | 36 | |1363. 形成三的最大倍数|1|https://leetcode-cn.com/problems/largest-multiple-of-three|
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28 | 37 | |1. 两数之和|1|https://leetcode-cn.com/problems/two-sum|
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29 | 38 | |264. 丑数 II|1|https://leetcode-cn.com/problems/ugly-number-ii|
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30 |
| -|88. 合并两个有序数组|1|https://leetcode-cn.com/problems/merge-sorted-array| |
31 |
| -|64. 最小路径和|1|https://leetcode-cn.com/problems/minimum-path-sum| |
| 39 | +|518. 零钱兑换 II|1|https://leetcode-cn.com/problems/coin-change-2| |
32 | 40 | |1143. 最长公共子序列|1|https://leetcode-cn.com/problems/longest-common-subsequence|
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33 | 41 | |160. 相交链表|1|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
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34 |
| -|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| |
| 42 | +|88. 合并两个有序数组|1|https://leetcode-cn.com/problems/merge-sorted-array| |
| 43 | +|64. 最小路径和|1|https://leetcode-cn.com/problems/minimum-path-sum| |
| 44 | +|334. 递增的三元子序列|1|https://leetcode-cn.com/problems/increasing-triplet-subsequence| |
35 | 45 | |72. 编辑距离|1|https://leetcode-cn.com/problems/edit-distance|
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| 46 | +|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| |
36 | 47 | |143. 重排链表|1|https://leetcode-cn.com/problems/reorder-list|
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37 | 48 | |206. 反转链表|1|https://leetcode-cn.com/problems/reverse-linked-list|
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38 |
| -|142. 环形链表 II|1|https://leetcode-cn.com/problems/linked-list-cycle-ii| |
39 |
| -|50. Pow(x, n)|1|https://leetcode-cn.com/problems/powx-n| |
40 | 49 | |25. K 个一组翻转链表|1|https://leetcode-cn.com/problems/reverse-nodes-in-k-group|
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41 | 50 | |剑指 Offer 55 - II. 平衡二叉树|1|https://leetcode-cn.com/problems/ping-heng-er-cha-shu-lcof|
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42 | 51 | |63. 不同路径 II|1|https://leetcode-cn.com/problems/unique-paths-ii|
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43 |
| -|124. 二叉树中的最大路径和|1|https://leetcode-cn.com/problems/binary-tree-maximum-path-sum| |
44 |
| -|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| |
| 52 | +|142. 环形链表 II|1|https://leetcode-cn.com/problems/linked-list-cycle-ii| |
| 53 | +|50. Pow(x, n)|1|https://leetcode-cn.com/problems/powx-n| |
| 54 | +|440. 字典序的第K小数字|1|https://leetcode-cn.com/problems/k-th-smallest-in-lexicographical-order| |
45 | 55 | |636. 函数的独占时间|1|https://leetcode-cn.com/problems/exclusive-time-of-functions|
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46 | 56 | |695. 岛屿的最大面积|1|https://leetcode-cn.com/problems/max-area-of-island|
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47 |
| -|48. 旋转图像|1|https://leetcode-cn.com/problems/rotate-image| |
| 57 | +|124. 二叉树中的最大路径和|1|https://leetcode-cn.com/problems/binary-tree-maximum-path-sum| |
| 58 | +|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| |
48 | 59 | |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|
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49 | 60 | |814. 二叉树剪枝|1|https://leetcode-cn.com/problems/binary-tree-pruning|
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50 |
| -|169. 多数元素|1|https://leetcode-cn.com/problems/majority-element| |
| 61 | +|48. 旋转图像|1|https://leetcode-cn.com/problems/rotate-image| |
51 | 62 | |238. 除自身以外数组的乘积|1|https://leetcode-cn.com/problems/product-of-array-except-self|
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52 | 63 | |110. 平衡二叉树|1|https://leetcode-cn.com/problems/balanced-binary-tree|
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53 | 64 | |62. 不同路径|1|https://leetcode-cn.com/problems/unique-paths|
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| 65 | +|169. 多数元素|1|https://leetcode-cn.com/problems/majority-element| |
| 66 | +|718. 最长重复子数组|1|https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray| |
| 67 | +|128. 最长连续序列|1|https://leetcode-cn.com/problems/longest-consecutive-sequence| |
54 | 68 | |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|
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55 | 69 | |807. 保持城市天际线|1|https://leetcode-cn.com/problems/max-increase-to-keep-city-skyline|
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56 |
| -|128. 最长连续序列|1|https://leetcode-cn.com/problems/longest-consecutive-sequence| |
57 |
| -|209. 长度最小的子数组|1|https://leetcode-cn.com/problems/minimum-size-subarray-sum| |
58 | 70 | |572. 另一个树的子树|1|https://leetcode-cn.com/problems/subtree-of-another-tree|
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59 | 71 | |102. 二叉树的层序遍历|1|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
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60 |
| -|560. 和为K的子数组|1|https://leetcode-cn.com/problems/subarray-sum-equals-k| |
61 |
| -|287. 寻找重复数|1|https://leetcode-cn.com/problems/find-the-duplicate-number| |
| 72 | +|209. 长度最小的子数组|1|https://leetcode-cn.com/problems/minimum-size-subarray-sum| |
62 | 73 | |239. 滑动窗口最大值|1|https://leetcode-cn.com/problems/sliding-window-maximum|
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63 | 74 | |104. 二叉树的最大深度|1|https://leetcode-cn.com/problems/maximum-depth-of-binary-tree|
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64 | 75 | |2. 两数相加|1|https://leetcode-cn.com/problems/add-two-numbers|
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65 |
| -|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| |
66 |
| -|179. 最大数|1|https://leetcode-cn.com/problems/largest-number| |
67 |
| -|121. 买卖股票的最佳时机|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock| |
68 |
| -|33. 搜索旋转排序数组|1|https://leetcode-cn.com/problems/search-in-rotated-sorted-array| |
69 |
| -|509. 斐波那契数|1|https://leetcode-cn.com/problems/fibonacci-number| |
70 |
| -|5. 最长回文子串|1|https://leetcode-cn.com/problems/longest-palindromic-substring| |
71 |
| -|3. 无重复字符的最长子串|1|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters| |
72 |
| -|240. 搜索二维矩阵 II|1|https://leetcode-cn.com/problems/search-a-2d-matrix-ii| |
| 76 | +|560. 和为K的子数组|1|https://leetcode-cn.com/problems/subarray-sum-equals-k| |
| 77 | +|287. 寻找重复数|1|https://leetcode-cn.com/problems/find-the-duplicate-number| |
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