| 3. 无重复字符的最长子串 |
14 |
https://leetcode-cn.com/problems/longest-substring-without-repeating-characters |
| 20. 有效的括号 |
8 |
https://leetcode-cn.com/problems/valid-parentheses |
| 206. 反转链表 |
6 |
https://leetcode-cn.com/problems/reverse-linked-list |
| 169. 多数元素 |
6 |
https://leetcode-cn.com/problems/majority-element |
| 415. 字符串相加 |
5 |
https://leetcode-cn.com/problems/add-strings |
| 78. 子集 |
5 |
https://leetcode-cn.com/problems/subsets |
| 1. 两数之和 |
5 |
https://leetcode-cn.com/problems/two-sum |
| 70. 爬楼梯 |
4 |
https://leetcode-cn.com/problems/climbing-stairs |
| 94. 二叉树的中序遍历 |
4 |
https://leetcode-cn.com/problems/binary-tree-inorder-traversal |
| 25. K 个一组翻转链表 |
4 |
https://leetcode-cn.com/problems/reverse-nodes-in-k-group |
| 64. 最小路径和 |
4 |
https://leetcode-cn.com/problems/minimum-path-sum |
| 239. 滑动窗口最大值 |
3 |
https://leetcode-cn.com/problems/sliding-window-maximum |
| 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 |
| 110. 平衡二叉树 |
3 |
https://leetcode-cn.com/problems/balanced-binary-tree |
| 62. 不同路径 |
3 |
https://leetcode-cn.com/problems/unique-paths |
| 83. 删除排序链表中的重复元素 |
2 |
https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list |
| 14. 最长公共前缀 |
2 |
https://leetcode-cn.com/problems/longest-common-prefix |
| 88. 合并两个有序数组 |
2 |
https://leetcode-cn.com/problems/merge-sorted-array |
| 42. 接雨水 |
2 |
https://leetcode-cn.com/problems/trapping-rain-water |
| 39. 组合总和 |
2 |
https://leetcode-cn.com/problems/combination-sum |
| 142. 环形链表 II |
2 |
https://leetcode-cn.com/problems/linked-list-cycle-ii |
| 268. 缺失数字 |
2 |
https://leetcode-cn.com/problems/missing-number |
| 543. 二叉树的直径 |
2 |
https://leetcode-cn.com/problems/diameter-of-binary-tree |
| 141. 环形链表 |
2 |
https://leetcode-cn.com/problems/linked-list-cycle |
| 15. 三数之和 |
2 |
https://leetcode-cn.com/problems/3sum |
| 125. 验证回文串 |
2 |
https://leetcode-cn.com/problems/valid-palindrome |
| 26. 删除排序数组中的重复项 |
2 |
https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array |
| 242. 有效的字母异位词 |
2 |
https://leetcode-cn.com/problems/valid-anagram |
| 179. 最大数 |
2 |
https://leetcode-cn.com/problems/largest-number |
| 5. 最长回文子串 |
2 |
https://leetcode-cn.com/problems/longest-palindromic-substring |
| 468. 验证IP地址 |
2 |
https://leetcode-cn.com/problems/validate-ip-address |
| 146. LRU缓存机制 |
2 |
https://leetcode-cn.com/problems/lru-cache |
| 200. 岛屿数量 |
1 |
https://leetcode-cn.com/problems/number-of-islands |
| 49. 字母异位词分组 |
1 |
https://leetcode-cn.com/problems/group-anagrams |
| 704. 二分查找 |
1 |
https://leetcode-cn.com/problems/binary-search |
| 198. 打家劫舍 |
1 |
https://leetcode-cn.com/problems/house-robber |
| 151. 翻转字符串里的单词 |
1 |
https://leetcode-cn.com/problems/reverse-words-in-a-string |
| 53. 最大子序和 |
1 |
https://leetcode-cn.com/problems/maximum-subarray |
| 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 |
| 215. 数组中的第K个最大元素 |
1 |
https://leetcode-cn.com/problems/kth-largest-element-in-an-array |
| 97. 交错字符串 |
1 |
https://leetcode-cn.com/problems/interleaving-string |
| 21. 合并两个有序链表 |
1 |
https://leetcode-cn.com/problems/merge-two-sorted-lists |
| 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 |
| 162. 寻找峰值 |
1 |
https://leetcode-cn.com/problems/find-peak-element |
| 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 |
| 1143. 最长公共子序列 |
1 |
https://leetcode-cn.com/problems/longest-common-subsequence |
| 405. 数字转换为十六进制数 |
1 |
https://leetcode-cn.com/problems/convert-a-number-to-hexadecimal |
| 232. 用栈实现队列 |
1 |
https://leetcode-cn.com/problems/implement-queue-using-stacks |
| 31. 下一个排列 |
1 |
https://leetcode-cn.com/problems/next-permutation |
| 350. 两个数组的交集 II |
1 |
https://leetcode-cn.com/problems/intersection-of-two-arrays-ii |
| 160. 相交链表 |
1 |
https://leetcode-cn.com/problems/intersection-of-two-linked-lists |
| 32. 最长有效括号 |
1 |
https://leetcode-cn.com/problems/longest-valid-parentheses |
| 224. 基本计算器 |
1 |
https://leetcode-cn.com/problems/basic-calculator |
| 1201. 丑数 III |
1 |
https://leetcode-cn.com/problems/ugly-number-iii |
| 680. 验证回文字符串 Ⅱ |
1 |
https://leetcode-cn.com/problems/valid-palindrome-ii |
| 344. 反转字符串 |
1 |
https://leetcode-cn.com/problems/reverse-string |
| 9. 回文数 |
1 |
https://leetcode-cn.com/problems/palindrome-number |
| 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 |
| 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 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 |
| 498. 对角线遍历 |
1 |
https://leetcode-cn.com/problems/diagonal-traverse |
| 443. 压缩字符串 |
1 |
https://leetcode-cn.com/problems/string-compression |
| 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 |
| 79. 单词搜索 |
1 |
https://leetcode-cn.com/problems/word-search |
| 300. 最长上升子序列 |
1 |
https://leetcode-cn.com/problems/longest-increasing-subsequence |
| 76. 最小覆盖子串 |
1 |
https://leetcode-cn.com/problems/minimum-window-substring |
| 240. 搜索二维矩阵 II |
1 |
https://leetcode-cn.com/problems/search-a-2d-matrix-ii |
| 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 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 |
| 51. N皇后 |
1 |
https://leetcode-cn.com/problems/n-queens |
| 236. 二叉树的最近公共祖先 |
1 |
https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree |
| 41. 缺失的第一个正数 |
1 |
https://leetcode-cn.com/problems/first-missing-positive |
| 113. 路径总和 II |
1 |
https://leetcode-cn.com/problems/path-sum-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 |
