| 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 |