LeetCode Top 100 Liked 点赞最高的 100 道算法题

作者： 负雪明烛
id： fuxuemingzhu
个人博客： http://fuxuemingzhu.cn/
公众号：负雪明烛
本文关键词：刷题顺序，刷题路径，好题，top100，怎么刷题，Leetcode, 力扣，Python, C++, Java

---

大家好，相信很多朋友在刷题时，看到 LeetCode 的 2000 多道题目，有点手足无措，非常需要一个刷题的顺序和清单。

我整理了在 LeetCode（中文版）上点赞数前 100 的题目，这些的题目基本都在千赞以上，全部都是好题。

举个例子，1. Two Sum（两数之和）这个题目有着全站最高的点赞数：11757！！这题也是经典中的经典了，肯定要掌握的。

---

LeetCode top 100 liked 题目列表

下面的表格根据 Likes 数目对题目进行了排序。

题号	英文题名	中文题名	难度	likes 数	标签	中文力扣地址	英文 LeetCode 地址
1	Two Sum	两数之和	Easy	11757	数组,哈希表	https://leetcode-cn.com/problems/two-sum/	https://leetcode.com/problems/two-sum/
2	Add Two Numbers	两数相加	Medium	6524	递归,链表,数学	https://leetcode-cn.com/problems/add-two-numbers/	https://leetcode.com/problems/add-two-numbers/
3	Longest Substring Without Repeating Characters	无重复字符的最长子串	Medium	5845	哈希表,字符串,滑动窗口	https://leetcode-cn.com/problems/longest-substring-without-repeating-characters/	https://leetcode.com/problems/longest-substring-without-repeating-characters/
4	Median of Two Sorted Arrays	寻找两个正序数组的中位数	Hard	4303	数组,二分查找,分治	https://leetcode-cn.com/problems/median-of-two-sorted-arrays/	https://leetcode.com/problems/median-of-two-sorted-arrays/
5	Longest Palindromic Substring	最长回文子串	Medium	3896	字符串,动态规划	https://leetcode-cn.com/problems/longest-palindromic-substring/	https://leetcode.com/problems/longest-palindromic-substring/
15	3Sum	三数之和	Medium	3582	数组,双指针,排序	https://leetcode-cn.com/problems/3sum/	https://leetcode.com/problems/3sum/
53	Maximum Subarray	最大子序和	Easy	3533	数组,分治,动态规划	https://leetcode-cn.com/problems/maximum-subarray/	https://leetcode.com/problems/maximum-subarray/
7	Reverse Integer	整数反转	Easy	2970	数学	https://leetcode-cn.com/problems/reverse-integer/	https://leetcode.com/problems/reverse-integer/
11	Container With Most Water	盛最多水的容器	Medium	2659	贪心,数组,双指针	https://leetcode-cn.com/problems/container-with-most-water/	https://leetcode.com/problems/container-with-most-water/
42	Trapping Rain Water	接雨水	Hard	2552	栈,数组,双指针,动态规划,单调栈	https://leetcode-cn.com/problems/trapping-rain-water/	https://leetcode.com/problems/trapping-rain-water/
20	Valid Parentheses	有效的括号	Easy	2544	栈,字符串	https://leetcode-cn.com/problems/valid-parentheses/	https://leetcode.com/problems/valid-parentheses/
10	Regular Expression Matching	正则表达式匹配	Hard	2273	递归,字符串,动态规划	https://leetcode-cn.com/problems/regular-expression-matching/	https://leetcode.com/problems/regular-expression-matching/
26	Remove Duplicates from Sorted Array	删除有序数组中的重复项	Easy	2146	数组,双指针	https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array/	https://leetcode.com/problems/remove-duplicates-from-sorted-array/
136	Single Number	只出现一次的数字	Easy	1958	位运算,数组	https://leetcode-cn.com/problems/single-number/	https://leetcode.com/problems/single-number/
22	Generate Parentheses	括号生成	Medium	1946	字符串,动态规划,回溯	https://leetcode-cn.com/problems/generate-parentheses/	https://leetcode.com/problems/generate-parentheses/
206	Reverse Linked List	反转链表	Easy	1886	递归,链表	https://leetcode-cn.com/problems/reverse-linked-list/	https://leetcode.com/problems/reverse-linked-list/
21	Merge Two Sorted Lists	合并两个有序链表	Easy	1832	递归,链表	https://leetcode-cn.com/problems/merge-two-sorted-lists/	https://leetcode.com/problems/merge-two-sorted-lists/
70	Climbing Stairs	爬楼梯	Easy	1791	记忆化搜索,数学,动态规划	https://leetcode-cn.com/problems/climbing-stairs/	https://leetcode.com/problems/climbing-stairs/
300	Longest Increasing Subsequence	最长递增子序列	Medium	1773	数组,二分查找,动态规划	https://leetcode-cn.com/problems/longest-increasing-subsequence/	https://leetcode.com/problems/longest-increasing-subsequence/
121	Best Time to Buy and Sell Stock	买卖股票的最佳时机	Easy	1766	数组,动态规划	https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock/	https://leetcode.com/problems/best-time-to-buy-and-sell-stock/
72	Edit Distance	编辑距离	Hard	1743	字符串,动态规划	https://leetcode-cn.com/problems/edit-distance/	https://leetcode.com/problems/edit-distance/
14	Longest Common Prefix	最长公共前缀	Easy	1707	字符串	https://leetcode-cn.com/problems/longest-common-prefix/	https://leetcode.com/problems/longest-common-prefix/
198	House Robber	打家劫舍	Medium	1585	数组,动态规划	https://leetcode-cn.com/problems/house-robber/	https://leetcode.com/problems/house-robber/
9	Palindrome Number	回文数	Easy	1568	数学	https://leetcode-cn.com/problems/palindrome-number/	https://leetcode.com/problems/palindrome-number/
146	LRU Cache	LRU 缓存机制	Medium	1544	设计,哈希表,链表,双向链表	https://leetcode-cn.com/problems/lru-cache/	https://leetcode.com/problems/lru-cache/
19	Remove Nth Node From End of List	删除链表的倒数第 N 个结点	Medium	1494	链表,双指针	https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list/	https://leetcode.com/problems/remove-nth-node-from-end-of-list/
33	Search in Rotated Sorted Array	搜索旋转排序数组	Medium	1493	数组,二分查找	https://leetcode-cn.com/problems/search-in-rotated-sorted-array/	https://leetcode.com/problems/search-in-rotated-sorted-array/
46	Permutations	全排列	Medium	1484	数组,回溯	https://leetcode-cn.com/problems/permutations/	https://leetcode.com/problems/permutations/
101	Symmetric Tree	对称二叉树	Easy	1483	树,深度优先搜索,广度优先搜索,二叉树	https://leetcode-cn.com/problems/symmetric-tree/	https://leetcode.com/problems/symmetric-tree/
84	Largest Rectangle in Histogram	柱状图中最大的矩形	Hard	1472	栈,数组,单调栈	https://leetcode-cn.com/problems/largest-rectangle-in-histogram/	https://leetcode.com/problems/largest-rectangle-in-histogram/
39	Combination Sum	组合总和	Medium	1466	数组,回溯	https://leetcode-cn.com/problems/combination-sum/	https://leetcode.com/problems/combination-sum/
13	Roman to Integer	罗马数字转整数	Easy	1436	哈希表,数学,字符串	https://leetcode-cn.com/problems/roman-to-integer/	https://leetcode.com/problems/roman-to-integer/
23	Merge k Sorted Lists	合并K个升序链表	Hard	1436	链表,分治,堆（优先队列）,归并排序	https://leetcode-cn.com/problems/merge-k-sorted-lists/	https://leetcode.com/problems/merge-k-sorted-lists/
17	Letter Combinations of a Phone Number	电话号码的字母组合	Medium	1436	哈希表,字符串,回溯	https://leetcode-cn.com/problems/letter-combinations-of-a-phone-number/	https://leetcode.com/problems/letter-combinations-of-a-phone-number/
322	Coin Change	零钱兑换	Medium	1414	广度优先搜索,数组,动态规划	https://leetcode-cn.com/problems/coin-change/	https://leetcode.com/problems/coin-change/
32	Longest Valid Parentheses	最长有效括号	Hard	1400	栈,字符串,动态规划	https://leetcode-cn.com/problems/longest-valid-parentheses/	https://leetcode.com/problems/longest-valid-parentheses/
287	Find the Duplicate Number	寻找重复数	Medium	1325	位运算,数组,双指针,二分查找	https://leetcode-cn.com/problems/find-the-duplicate-number/	https://leetcode.com/problems/find-the-duplicate-number/
122	Best Time to Buy and Sell Stock II	买卖股票的最佳时机 II	Easy	1306	贪心,数组,动态规划	https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-ii/	https://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii/
160	Intersection of Two Linked Lists	相交链表	Easy	1302	哈希表,链表,双指针	https://leetcode-cn.com/problems/intersection-of-two-linked-lists/	https://leetcode.com/problems/intersection-of-two-linked-lists/
55	Jump Game	跳跃游戏	Medium	1292	贪心,数组,动态规划	https://leetcode-cn.com/problems/jump-game/	https://leetcode.com/problems/jump-game/
76	Minimum Window Substring	最小覆盖子串	Hard	1280	哈希表,字符串,滑动窗口	https://leetcode-cn.com/problems/minimum-window-substring/	https://leetcode.com/problems/minimum-window-substring/
200	Number of Islands	岛屿数量	Medium	1270	深度优先搜索,广度优先搜索,并查集,数组,矩阵	https://leetcode-cn.com/problems/number-of-islands/	https://leetcode.com/problems/number-of-islands/
78	Subsets	子集	Medium	1269	位运算,数组,回溯	https://leetcode-cn.com/problems/subsets/	https://leetcode.com/problems/subsets/
31	Next Permutation	下一个排列	Medium	1260	数组,双指针	https://leetcode-cn.com/problems/next-permutation/	https://leetcode.com/problems/next-permutation/
96	Unique Binary Search Trees	不同的二叉搜索树	Medium	1257	树,二叉搜索树,数学,动态规划,二叉树	https://leetcode-cn.com/problems/unique-binary-search-trees/	https://leetcode.com/problems/unique-binary-search-trees/
148	Sort List	排序链表	Medium	1248	链表,双指针,分治,排序,归并排序	https://leetcode-cn.com/problems/sort-list/	https://leetcode.com/problems/sort-list/
236	Lowest Common Ancestor of a Binary Tree	二叉树的最近公共祖先	Medium	1238	树,深度优先搜索,二叉树	https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree/	https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree/
25	Reverse Nodes in k-Group	K 个一组翻转链表	Hard	1230	递归,链表	https://leetcode-cn.com/problems/reverse-nodes-in-k-group/	https://leetcode.com/problems/reverse-nodes-in-k-group/
6	ZigZag Conversion	Z 字形变换	Medium	1226	字符串	https://leetcode-cn.com/problems/zigzag-conversion/	https://leetcode.com/problems/zigzag-conversion/
152	Maximum Product Subarray	乘积最大子数组	Medium	1223	数组,动态规划	https://leetcode-cn.com/problems/maximum-product-subarray/	https://leetcode.com/problems/maximum-product-subarray/
215	Kth Largest Element in an Array	数组中的第K个最大元素	Medium	1211	数组,分治,快速选择,排序,堆（优先队列）	https://leetcode-cn.com/problems/kth-largest-element-in-an-array/	https://leetcode.com/problems/kth-largest-element-in-an-array/
8	String to Integer (atoi)	字符串转换整数 (atoi)	Medium	1168	字符串	https://leetcode-cn.com/problems/string-to-integer-atoi/	https://leetcode.com/problems/string-to-integer-atoi/
41	First Missing Positive	缺失的第一个正数	Hard	1163	数组,哈希表	https://leetcode-cn.com/problems/first-missing-positive/	https://leetcode.com/problems/first-missing-positive/
283	Move Zeroes	移动零	Easy	1162	数组,双指针	https://leetcode-cn.com/problems/move-zeroes/	https://leetcode.com/problems/move-zeroes/
141	Linked List Cycle	环形链表	Easy	1161	哈希表,链表,双指针	https://leetcode-cn.com/problems/linked-list-cycle/	https://leetcode.com/problems/linked-list-cycle/
98	Validate Binary Search Tree	验证二叉搜索树	Medium	1156	树,深度优先搜索,二叉搜索树,二叉树	https://leetcode-cn.com/problems/validate-binary-search-tree/	https://leetcode.com/problems/validate-binary-search-tree/
124	Binary Tree Maximum Path Sum	二叉树中的最大路径和	Hard	1152	树,深度优先搜索,动态规划,二叉树	https://leetcode-cn.com/problems/binary-tree-maximum-path-sum/	https://leetcode.com/problems/binary-tree-maximum-path-sum/
105	Construct Binary Tree from Preorder and Inorder Traversal	从前序与中序遍历序列构造二叉树	Medium	1149	树,数组,哈希表,分治,二叉树	https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal/	https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal/
34	Find First and Last Position of Element in Sorted Array	在排序数组中查找元素的第一个和最后一个位置	Medium	1137	数组,二分查找	https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array/	https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/
239	Sliding Window Maximum	滑动窗口最大值	Hard	1114	队列,数组,滑动窗口,单调队列,堆（优先队列）	https://leetcode-cn.com/problems/sliding-window-maximum/	https://leetcode.com/problems/sliding-window-maximum/
142	Linked List Cycle II	环形链表 II	Medium	1097	哈希表,链表,双指针	https://leetcode-cn.com/problems/linked-list-cycle-ii/	https://leetcode.com/problems/linked-list-cycle-ii/
139	Word Break	单词拆分	Medium	1097	字典树,记忆化搜索,哈希表,字符串,动态规划	https://leetcode-cn.com/problems/word-break/	https://leetcode.com/problems/word-break/
45	Jump Game II	跳跃游戏 II	Medium	1094	贪心,数组,动态规划	https://leetcode-cn.com/problems/jump-game-ii/	https://leetcode.com/problems/jump-game-ii/
169	Majority Element	多数元素	Easy	1089	数组,哈希表,分治,计数,排序	https://leetcode-cn.com/problems/majority-element/	https://leetcode.com/problems/majority-element/
234	Palindrome Linked List	回文链表	Easy	1072	栈,递归,链表,双指针	https://leetcode-cn.com/problems/palindrome-linked-list/	https://leetcode.com/problems/palindrome-linked-list/
62	Unique Paths	不同路径	Medium	1072	数学,动态规划,组合数学	https://leetcode-cn.com/problems/unique-paths/	https://leetcode.com/problems/unique-paths/
189	Rotate Array	旋转数组	Medium	1057	数组,数学,双指针	https://leetcode-cn.com/problems/rotate-array/	https://leetcode.com/problems/rotate-array/
94	Binary Tree Inorder Traversal	二叉树的中序遍历	Easy	1052	栈,树,深度优先搜索,二叉树	https://leetcode-cn.com/problems/binary-tree-inorder-traversal/	https://leetcode.com/problems/binary-tree-inorder-traversal/
56	Merge Intervals	合并区间	Medium	1051	数组,排序	https://leetcode-cn.com/problems/merge-intervals/	https://leetcode.com/problems/merge-intervals/
88	Merge Sorted Array	合并两个有序数组	Easy	1041	数组,双指针,排序	https://leetcode-cn.com/problems/merge-sorted-array/	https://leetcode.com/problems/merge-sorted-array/
560	Subarray Sum Equals K	和为K的子数组	Medium	1036	数组,哈希表,前缀和	https://leetcode-cn.com/problems/subarray-sum-equals-k/	https://leetcode.com/problems/subarray-sum-equals-k/
279	Perfect Squares	完全平方数	Medium	1035	广度优先搜索,数学,动态规划	https://leetcode-cn.com/problems/perfect-squares/	https://leetcode.com/problems/perfect-squares/
35	Search Insert Position	搜索插入位置	Easy	1005	数组,二分查找	https://leetcode-cn.com/problems/search-insert-position/	https://leetcode.com/problems/search-insert-position/
24	Swap Nodes in Pairs	两两交换链表中的节点	Medium	996	递归,链表	https://leetcode-cn.com/problems/swap-nodes-in-pairs/	https://leetcode.com/problems/swap-nodes-in-pairs/
85	Maximal Rectangle	最大矩形	Hard	983	栈,数组,动态规划,矩阵,单调栈	https://leetcode-cn.com/problems/maximal-rectangle/	https://leetcode.com/problems/maximal-rectangle/
28	Implement strStr()	实现 strStr()	Easy	982	双指针,字符串,字符串匹配	https://leetcode-cn.com/problems/implement-strstr/	https://leetcode.com/problems/implement-strstr/
92	Reverse Linked List II	反转链表 II	Medium	980	链表	https://leetcode-cn.com/problems/reverse-linked-list-ii/	https://leetcode.com/problems/reverse-linked-list-ii/
155	Min Stack	最小栈	Easy	979	栈,设计	https://leetcode-cn.com/problems/min-stack/	https://leetcode.com/problems/min-stack/
79	Word Search	单词搜索	Medium	979	数组,回溯,矩阵	https://leetcode-cn.com/problems/word-search/	https://leetcode.com/problems/word-search/
27	Remove Element	移除元素	Easy	967	数组,双指针	https://leetcode-cn.com/problems/remove-element/	https://leetcode.com/problems/remove-element/
51	N-Queens	N 皇后	Hard	965	数组,回溯	https://leetcode-cn.com/problems/n-queens/	https://leetcode.com/problems/n-queens/
75	Sort Colors	颜色分类	Medium	961	数组,双指针,排序	https://leetcode-cn.com/problems/sort-colors/	https://leetcode.com/problems/sort-colors/
102	Binary Tree Level Order Traversal	二叉树的层序遍历	Medium	960	树,广度优先搜索,二叉树	https://leetcode-cn.com/problems/binary-tree-level-order-traversal/	https://leetcode.com/problems/binary-tree-level-order-traversal/
48	Rotate Image	旋转图像	Medium	960	数组,数学,矩阵	https://leetcode-cn.com/problems/rotate-image/	https://leetcode.com/problems/rotate-image/
95	Unique Binary Search Trees II	不同的二叉搜索树 II	Medium	955	树,二叉搜索树,动态规划,回溯,二叉树	https://leetcode-cn.com/problems/unique-binary-search-trees-ii/	https://leetcode.com/problems/unique-binary-search-trees-ii/
64	Minimum Path Sum	最小路径和	Medium	954	数组,动态规划,矩阵	https://leetcode-cn.com/problems/minimum-path-sum/	https://leetcode.com/problems/minimum-path-sum/
406	Queue Reconstruction by Height	根据身高重建队列	Medium	947	贪心,数组,排序	https://leetcode-cn.com/problems/queue-reconstruction-by-height/	https://leetcode.com/problems/queue-reconstruction-by-height/
226	Invert Binary Tree	翻转二叉树	Easy	941	树,深度优先搜索,广度优先搜索,二叉树	https://leetcode-cn.com/problems/invert-binary-tree/	https://leetcode.com/problems/invert-binary-tree/
437	Path Sum III	路径总和 III	Medium	937	树,深度优先搜索,二叉树	https://leetcode-cn.com/problems/path-sum-iii/	https://leetcode.com/problems/path-sum-iii/
104	Maximum Depth of Binary Tree	二叉树的最大深度	Easy	937	树,深度优先搜索,广度优先搜索,二叉树	https://leetcode-cn.com/problems/maximum-depth-of-binary-tree/	https://leetcode.com/problems/maximum-depth-of-binary-tree/
237	Delete Node in a Linked List	删除链表中的节点	Easy	936	链表	https://leetcode-cn.com/problems/delete-node-in-a-linked-list/	https://leetcode.com/problems/delete-node-in-a-linked-list/
337	House Robber III	打家劫舍 III	Medium	929	树,深度优先搜索,动态规划,二叉树	https://leetcode-cn.com/problems/house-robber-iii/	https://leetcode.com/problems/house-robber-iii/
18	4Sum	四数之和	Medium	918	数组,双指针,排序	https://leetcode-cn.com/problems/4sum/	https://leetcode.com/problems/4sum/
91	Decode Ways	解码方法	Medium	904	字符串,动态规划	https://leetcode-cn.com/problems/decode-ways/	https://leetcode.com/problems/decode-ways/
207	Course Schedule	课程表	Medium	897	深度优先搜索,广度优先搜索,图,拓扑排序	https://leetcode-cn.com/problems/course-schedule/	https://leetcode.com/problems/course-schedule/
37	Sudoku Solver	解数独	Hard	897	数组,回溯,矩阵	https://leetcode-cn.com/problems/sudoku-solver/	https://leetcode.com/problems/sudoku-solver/
175	Combine Two Tables	组合两个表	Easy	891	数据库	https://leetcode-cn.com/problems/combine-two-tables/	https://leetcode.com/problems/combine-two-tables/
416	Partition Equal Subset Sum	分割等和子集	Medium	886	数组,动态规划	https://leetcode-cn.com/problems/partition-equal-subset-sum/	https://leetcode.com/problems/partition-equal-subset-sum/
238	Product of Array Except Self	除自身以外数组的乘积	Medium	885	数组,前缀和	https://leetcode-cn.com/problems/product-of-array-except-self/	https://leetcode.com/problems/product-of-array-except-self/
114	Flatten Binary Tree to Linked List	二叉树展开为链表	Medium	877	栈,树,深度优先搜索,链表,二叉树	https://leetcode-cn.com/problems/flatten-binary-tree-to-linked-list/	https://leetcode.com/problems/flatten-binary-tree-to-linked-list/

---

2021 年 8 月 8 日于北京