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
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