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LeetCode-SolutionLeetCode-Solution

本仓库为LeetCode练习题题解记录，会持续更新各种语言的题解。同时也欢迎使用各种语言的同♂好们加入此项目，为开源贡献力量。

LeetCode is the best platform to help you enhance your skills, expand your knowledge and prepare for technical interviews.

如果想知道各大公司 LeetCode 面试题，可以参看 Companies.md。

附上@Blankj的镇楼诗：

明有科举八股，今有 LeetCode。
八股定格式而取文采心意，LeetCode 定题目且重答案背诵。
美其名曰："practice makes perfect."
为何今不如古？
非也非也，
科举为国取士，LeetCode 为 Google 筛码工，各取所需也。

目录

题解汇总

题目 题解 难度 Java JavaScript kotlin
001 Two Sum Easy ✅ ✅ ✅
002 Add Two Numbers Medium ✅ ✅
003 Longest Substring Without Repeating Characters Medium ✅ ✅
004 Median of Two Sorted Arrays Hard ✅ ✅
005 Longest Palindromic Substring Medium ✅
006 ZigZag Conversion Medium ✅
007 Reverse Integer Easy ✅ ✅ ✅
008 String to Integer (atoi) Medium ✅
009 Palindrome Number Easy ✅ ✅ ✅
010 Regular Expression Matching Hard ✅
011 Container With Most Water Medium ✅
012 Integer to Roman Medium ✅
013 Roman to Integer Easy ✅ ✅ ✅
014 Longest Common Prefix Easy ✅ ✅ ✅
015 3Sum Medium ✅
016 3Sum Closest Medium ✅
017 Letter Combinations of a Phone Number Medium ✅
018 4Sum Medium ✅
019 Remove Nth Node From End of List Medium ✅
020 Valid Parentheses Easy ✅ ✅ ✅
021 Merge Two Sorted Lists Easy ✅ ✅ ✅
022 Generate Parentheses Medium ✅
023 Merge k Sorted Lists Hard ✅
024 Swap Nodes in Pairs Medium ✅
025 Reverse Nodes in k-Group Hard ✅
026 Remove Duplicates from Sorted Array Easy ✅ ✅ ✅
027 Remove Element Easy ✅ ✅ ✅
028 Implement strStr() Easy ✅ ✅ ✅
029 Divide Two Integers Medium ✅
030 Substring with Concatenation of All Words Hard ✅
033 Search in Rotated Sorted Array Medium ✅
035 Search Insert Position Easy ✅ ✅ ✅
038 Count and Say Easy ✅ ✅ ✅
043 Multiply Strings Medium ✅
044 Wildcard Matching Hard ✅
049 Group Anagrams Medium ✅
050 Pow(x, n) Medium ✅
053 Maximum Subarray Easy ✅ ✅ ✅
056 Merge Intervals Medium ✅
057 Insert Interval Hard ✅
058 Length of Last Word Easy ✅ ✅ ✅
066 Plus One Easy ✅ ✅ ✅
067 Add Binary Easy ✅ ✅
068 Text Justification Hard ✅
069 Sqrt(x) Easy ✅ ✅
070 Climbing Stairs Easy ✅ ✅
083 Remove Duplicates from Sorted List Easy ✅ ✅
088 Merge Sorted Array Easy ✅ ✅
100 Same Tree Easy ✅ ✅
101 Symmetric Tree Easy ✅ ✅
104 Maximum Depth of Binary Tree Easy ✅ ✅
107 Binary Tree Level Order Traversal II Easy ✅ ✅
108 Convert Sorted Array to Binary Search Tree Easy ✅ ✅
110 Balanced Binary Tree Easy ✅ ✅
111 Minimum Depth of Binary Tree Easy ✅ ✅
112 Path Sum Easy ✅ ✅
118 Pascal's Triangle Easy ✅ ✅
119 Pascal's Triangle II Easy ✅ ✅
121 Best Time to Buy and Sell Stock Easy ✅ ✅
122 Best Time to Buy and Sell Stock II Easy ✅ ✅
226 Invert Binary Tree Easy ✅ ✅ ✅
504 Base 7 Easy ✅
543 Diameter of Binary Tree Easy ✅ ✅
554 Brick Wall Medium ✅
561 Array Partition I Easy ✅ ✅
643 Maximum Average Subarray I Easy ✅ ✅
645 Set Mismatch Easy ✅ ✅
653 Two Sum IV - Input is a BST Easy ✅ ✅
657 Judge Route Circle Easy ✅ ✅
661 Image Smoother Easy ✅ ✅
665 Non-decreasing Array Easy ✅ ✅
669 Trim a Binary Search Tree Easy ✅ ✅
671 Second Minimum Node In a Binary Tree Easy ✅ ✅
674 Longest Continuous Increasing Subsequence Easy ✅ ✅
680 Valid Palindrome II Easy ✅ ✅
682 Baseball Game Easy ✅ ✅
686 Repeated String Match Easy ✅ ✅
687 Longest Univalue Path Easy ✅ ✅
693 Binary Number with Alternating Bits Easy ✅ ✅
695 Max Area of Island Easy ✅ ✅
696 Count Binary Substrings Easy ✅ ✅
697 Degree of an Array Easy ✅ ✅
717 1-bit and 2-bit Characters Easy ✅ ✅
720 Longest Word in Dictionary Easy ✅ ✅
724 Find Pivot Index Easy ✅ ✅
728 Self Dividing Numbers Easy ✅ ✅
733 Flood Fill Easy ✅ ✅
744 Find Smallest Letter Greater Than Target Easy ✅ ✅
746 Min Cost Climbing Stairs Easy ✅ ✅
747 Largest Number At Least Twice of Others Easy ✅ ✅
762 Prime Number of Set Bits in Binary Representation Easy ✅ ✅
766 Toeplitz Matrix Easy ✅ ✅
771 Jewels and Stones Easy ✅ ✅ ✅
783 Minimum Distance Between BST Nodes Easy ✅ ✅
784 Letter Case Permutation Easy ✅
788 Rotated Digits Easy ✅
796 Rotate String Easy ✅
804 Unique Morse Code Words Easy ✅
806 Number of Lines To Write String Easy ✅

库维护须知

库维护须知.md

贡献者名单

排名不分先后

  • 感谢@Mukyu, 提供Java题解。
  • 感谢@Taryn, 提供JavaScript题解。
  • 感谢@Wang-YS, 提供JavaScrip代码。
  • 感谢@Blankj, 提供Java题解、镇楼诗及文档编写规范。
  • 感谢@WangXin, 提供kotlin代码、文档整理及库维护规范。

About

👑 Solution of LeetCode with Java、JavaScript、kotlin(updating)

richcodersandme.github.io/LeetCode-Solution/

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data-structure algorithms leetcode data-structures leetcode-solutions leetcode-java leetcode-javascript leetcode-kotlin

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