| 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 |
| 补充题4. 手撕快速排序 |
3 |
https://leetcode-cn.com/problems/sort-an-array |
| 206. 反转链表 |
3 |
https://leetcode-cn.com/problems/reverse-linked-list |
| 53. 最大子序和 |
2 |
https://leetcode-cn.com/problems/maximum-subarray |
| 54. 螺旋矩阵 |
2 |
https://leetcode-cn.com/problems/spiral-matrix |
| 141. 环形链表 |
2 |
https://leetcode-cn.com/problems/linked-list-cycle |
| 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 |
| 155. 最小栈 |
2 |
https://leetcode-cn.com/problems/min-stack |
| 46. 全排列 |
2 |
https://leetcode-cn.com/problems/permutations |
| 236. 二叉树的最近公共祖先 |
2 |
https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree |
| 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 |
| 199. 二叉树的右视图 |
1 |
https://leetcode-cn.com/problems/binary-tree-right-side-view |
| 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 |
| 468. 验证IP地址 |
1 |
https://leetcode-cn.com/problems/validate-ip-address |
| 151. 翻转字符串里的单词 |
1 |
https://leetcode-cn.com/problems/reverse-words-in-a-string |
| 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 |
| 1143. 最长公共子序列 |
1 |
https://leetcode-cn.com/problems/longest-common-subsequence |
| 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 |
| 69. x 的平方根 |
1 |
https://leetcode-cn.com/problems/sqrtx |
| 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 |
| 239. 滑动窗口最大值 |
1 |
https://leetcode-cn.com/problems/sliding-window-maximum |
| 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 |
| 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 |
| 300. 最长上升子序列 |
1 |
https://leetcode-cn.com/problems/longest-increasing-subsequence |
| 232. 用栈实现队列 |
1 |
https://leetcode-cn.com/problems/implement-queue-using-stacks |
| 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 |
| 113. 路径总和 II |
1 |
https://leetcode-cn.com/problems/path-sum-ii |
| 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 |
| 63. 不同路径 II |
1 |
https://leetcode-cn.com/problems/unique-paths-ii |
| 70. 爬楼梯 |
1 |
https://leetcode-cn.com/problems/climbing-stairs |
