![LeetCode Animation All in One](https://upload-images.jianshu.io/upload_images/1940317-e837182a805cecce.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)

[![Travis](https://img.shields.io/badge/language-C++-red.svg)](https://developer.apple.com/)
[![Travis](https://img.shields.io/badge/language-Java-yellow.svg)](https://developer.apple.com/)

[这里有中文版本的README，点击它！](https://github.com/MisterBooo/LeetCodeAnimation/blob/master/Readme.md)

I will do my best to demonstrate all the questions on LeetCode in the form of animation. 

I plan to take three to four years to complete it!

I look forward to witnessing this day with you!

The latest article published in WeChat **五分钟学算法** ,  you can pay attention to get the latest article.



## Problems


| ID | Problem  | Article | Animation | Date|
| --- | ---  | :--- |:--- | :--- |
| 000 |Ten Classic Sorting Algorithms | [十大经典排序算法动画与解析，看我就够了！（配代码完全版）](https://mp.weixin.qq.com/s/vn3KiV-ez79FmbZ36SX9lg) | ![归并排序.gif](https://upload-images.jianshu.io/upload_images/1940317-92f62b62af03e233.gif?imageMogr2/auto-orient/strip)|
| 001 |Two-Sum | [每天一算：Two Sum](https://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483740&idx=1&sn=1950545589ea9b86ee65fbb6be1f4290&chksm=fa0e6eddcd79e7cb542b7d4dc1304eead516994315fa4f52b575230f0f022c9e0a88ede3714e&scene=21#wechat_redirect) |![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161033.gif) | 
| 002 |Add Two Numbers| [图解LeetCode第 2 号问题：两个数字相加](https://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247484231&idx=2&sn=6a9eb4fd0619c822e4dede69b8d841c8&chksm=fa0e6cc6cd79e5d0c03fffcd65b665fed62db9dca9c97771898f388ea292ce806bfd6eb908b5&token=934487935&lang=zh_CN#rd) |![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181210092831.gif)| 
| 003 |Longest Substring Without Repeating Characters| [图解LeetCode第 3 号问题：无重复字符的最长子串](https://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247484265&idx=2&sn=7f72afb341865923315bd51e1f50beff&chksm=fa0e6ce8cd79e5fe4be925fd5f01f59f59010c6c965fb3daefac79992593a6e58990c212e0bb&token=1412967663&lang=zh_CN#rd)|![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181210092855.gif)| 
| 019| Remove-Nth-Node-From-End-of-List |[每天一算：Remove Nth Node From End of List](http://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483821&idx=1&sn=11ecccab76cd53163e9dedb75effeb93&chksm=fa0e6e2ccd79e73ae9137c0d91b3533df4ea4ead4ad081834b8d91ff364c0d55c350ddcfa6c4&scene=21#wechat_redirect)  |![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161058.gif)| 
| 020|Valid-Parentheses  | [每天一算：Valid Parentheses](http://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483824&idx=1&sn=ab9362e125dc5e2b3ef1611cad9448c2&chksm=fa0e6e31cd79e727c6e1e0e3c467e193edb6ae841a41e5dc8eef39d0bf3141cc53f63b019cba&scene=21#wechat_redirect) |![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161106.gif)| 
| 024| Swap-Nodes-in-Pairs | [每天一算：Swap Nodes in Pairs](http://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483773&idx=1&sn=db6cf272df968cd6571eb0bb50ecc721&chksm=fa0e6efccd79e7ea26810d335e6ece9ac23b8e3ac31be00dbd534018737ccb3ef9a00f22aff3&scene=21#wechat_redirect) |![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161115.gif)| 
| 026|  Remove-Duplicates-from-Sorted-Array| [图解LeetCode第 26 号问题：删除排序数组中的重复项](https://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247484284&idx=2&sn=c8af62a82a62a21217d0f0b2b5891e4f&chksm=fa0e6cfdcd79e5ebe8726a61f93b834467d29b7d9e60a44feb990388f9e98605ac1e3f7e723d&token=762342620&lang=zh_CN#rd)  |![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161124.gif)| 
| 075|  Sort-Colors| [每天一算：Sort Colors](http://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483706&idx=1&sn=905f43c882a91b55fd169d812620f277&chksm=fa0e6ebbcd79e7ad8857b0dad9ad14dbaf17fe557ef56ba600cec26b2bb668df2e171431d74c&scene=21#wechat_redirect) |![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161136.gif)| 
| 086|  Partition-List| 	[每天一算：Partition List](http://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483781&idx=1&sn=f31548ebbb2cf9ba56d979d3e51ddde2&chksm=fa0e6e04cd79e712d6cc7ff8e8b7631b7300ac0fa1a3e4c4e3b836de7a01fb5d0d6428a18bc4&scene=21#wechat_redirect) |![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161147.gif)| 
|092 |Reverse-Linked-List-II | [每天一算：Reverse Linked List II](http://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483820&idx=1&sn=113e87b55c8ac8e22e9db00673798118&chksm=fa0e6e2dcd79e73b5835a262599b935783de3317a453bc0ed8df9fa5d1532785a085ea663e59&scene=21#wechat_redirect) |![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161156.gif)| 
| 094|Binary-Tree-Inorder-Traversal  | [每天一算：Binary Tree Inorder Traversal ](http://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483853&idx=1&sn=94cd4b4ee8dc2268290a72334c6af57b&chksm=fa0e6e4ccd79e75a41a6b78397b80cdfccda332823874475b516f997f89e786488599fc5cc1e&scene=21#wechat_redirect)|![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161208.gif)| 
|102	|Binary-Tree-Level-Order-Traversal|	[每天一算：Binary Tree Level Order Traveral](http://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483868&idx=1&sn=d50041789fcd13a75a2296f620b69d71&chksm=fa0e6e5dcd79e74b0030ac5129f10ec4ba87c98da63c5904affe9f06e06ecf28695c410d3ec7&scene=21#wechat_redirect)|![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161232.gif)| 
|103	|Binary Tree Zigzag Level Order Traversal|		[图解LeetCode第 103 号问题：二叉树的锯齿形层次遍历](https://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247484290&idx=2&sn=c29c4eefcbe8954cca6b3c8491ebccf1&chksm=fa0e6c03cd79e515581905322a3a22a3f3d10d24ca668a9d5aaef00932f0237eeaeaf3199668&token=1840661183&lang=zh_CN#rd)|![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181210092922.gif)| 
|107	| Binary Tree Level Order Traversal II |	每天一算： Binary Tree Level Order Traversal II|![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181210092949.gif)| 
|136	| Single Number |	[一道让你拍案叫绝的算法题 ](https://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247484505&idx=1&sn=4c1c056dd4852c3b4b1ead51c90a9b2d&chksm=fa0e6bd8cd79e2ce8188dcdd8843a5d071248906bfb8971c62d513dbd69b816acc191a78e4b2&token=487128715&lang=zh_CN#rd)|![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20190116110804.gif)| 2019-01-16 |
|144 |  Binary-Tree-Preorder-Traversal|  [每天一算：Binary Tree Preorder Traversal](http://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483843&idx=1&sn=994bf0d42dd9941a879a3a3ed500a4d6&chksm=fa0e6e42cd79e75472404eb5da7ee98f20d303efe230eb4f41efec57164630f555e7111e62ff&scene=21#wechat_redirect)|![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181207112441.gif)| 
| 145| Binary-Tree-Postorder-Traversal |  [每天一算：Binary Tree Postorder Traversal](http://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483853&idx=1&sn=94cd4b4ee8dc2268290a72334c6af57b&chksm=fa0e6e4ccd79e75a41a6b78397b80cdfccda332823874475b516f997f89e786488599fc5cc1e&scene=21#wechat_redirect)|![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181219084940.gif)| 
| 146| LRU Cache |  LRU缓存机制 |![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20190125143756.gif)| 2019-01-25 Made by Jun chen|
| 150| Evaluate-Reverse-Polish-Notation | [每天一算：Evaluate Reverse Polish Notation](http://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483834&idx=1&sn=27cbff99f10dfcdb56cb37c237d7f2bb&chksm=fa0e6e3bcd79e72dc430bf81aed9dde9bd01634239dcf7820d6befa881efd323d9d58d76d90d&scene=21#wechat_redirect) |![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161304.gif)| 
| 167| Two-Sum-II-Input-array-is-sorted | [每天一算：Two Sum II ](http://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483711&idx=1&sn=3afec74e9e9effa71dc0b22659e14b44&chksm=fa0e6ebecd79e7a84db7861c9b5dbccdc98aa9d9a6994dda49a37edeb729e8242ea6af8f20ad&scene=21#wechat_redirect)|![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161314.gif)| 
|199 |  Binary Tree Right Side View | 每天一算：Binary Tree Right Side View |![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161328.gif)| 
| 203| Remove-Linked-List-Elements |  [每天一算：Remove Linked List Elements](http://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483766&idx=1&sn=6721376a65680bf7cf9064cf7b1ae4ae&chksm=fa0e6ef7cd79e7e1665e60fe6ea3f2087bca518c1573bc4c4b9425573f98401bafc59542dca0&scene=21#wechat_redirect)|![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161338.gif)| 
|206	| Reverse Linked List |	[每天一算： Reverse Linked List ](http://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483799&idx=1&sn=c2212c8963809e8d3392abeeb851dbfc&chksm=fa0e6e16cd79e7003c2d30b1a2bb4f23dc56df38e3efedd0ab2cfae291609280a832eabe67de&scene=21#wechat_redirect)|![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181210093009.gif)| 
|209	| Minimum Size Subarray Sum  |	每天一算： Minimum Size Subarray Sum |![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181210093031.gif)| 
| 219|Contains-Duplicate-II  |[每天一算：Contains Duplicate II  ](http://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483755&idx=1&sn=2501b6ca09c43eaa9fba71a9bd1f5253&chksm=fa0e6eeacd79e7fc192c0a23cf90d98fe6f2c35f9e4f2d0f937ccba45a58cf23a0a9c49d35d5&scene=21#wechat_redirect)|![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161352.gif)| 
|237|	Delete-Node-in-a-Linked-List	|每天一算：Delete Node in a Linked List|![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161400.gif) |
|279|	Perfect Squares	|[图解LeetCode第 279 号问题： 完全平方数](https://mp.weixin.qq.com/s/53AlHe29fJF1hEwj0cj7ZA)|![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20190119213317.gif) |  Made by 王琛 2019-01-19日|
|283	|Move-Zeroes	|[每天一算：Move Zeros](http://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483700&idx=1&sn=465f778d60e8560742feab5844d7cac5&chksm=fa0e6eb5cd79e7a357899d378edb532b498cd63e3ce9113f8ac74d397ce4b214ca5aa8198b7d&scene=21#wechat_redirect)|![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161421.gif)| 
|328 |Odd-Even-Linked-List  | [每天一算：Odd Even Linked List](http://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483786&idx=1&sn=f7810950b34675e1c4420361faf5e361&chksm=fa0e6e0bcd79e71d2c6fc6a4a68b6ef7a17abc3dc9897548f8e44b51e9494f52c4cebbc4176e&scene=21#wechat_redirect) |![](https://diycode.b0.upaiyun.com/photo/2018/94e5c38540029690c93314b3d697caaf.gif)| 
|344 | Reverse-String |每天一算：Reverse String  |![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181211110918.gif)| 
|349 |  Intersection-of-Two-Arrays| [每天一算：Intersection of Two Arrays ](http://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483726&idx=1&sn=a887f6b983058d97c183dd300832ecbb&chksm=fa0e6ecfcd79e7d985587b543622c85aadc83a4d7a074135e1356fb4a0ebfd07e7af13467906&scene=21#wechat_redirect)|![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161441.gif)| 
| 350|  Intersection-of-Two-Arrays-II| [每天一算：Intersection of Two Arrays II ](http://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483733&idx=1&sn=946bd6de3251437dd77b43ecab056c82&chksm=fa0e6ed4cd79e7c2a439b5f1853bf5154a3438ed282c7ba5e94948780c426a1f1492c0b201c4&scene=21#wechat_redirect)|![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161729.gif)| 
|445|	Add Two Numbers II	|[图解LeetCode第 445 号问题：  两数相加 II](https://mp.weixin.qq.com/s/z8_1dK7mw9gxfhhSZUBVgg)|![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20190119213714.gif) |  Made by 王琛 2019-01-19日|
|447 | Number-of-Boomerangs |  [每日一算：Number of Boomerangs](http://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247483747&idx=1&sn=7774eee0b252b311257134f6a52c4e2d&chksm=fa0e6ee2cd79e7f44858c46c3d04859ced9073dbb9de95ce7ee0bcc131e613862ddfd9a6f158&scene=21#wechat_redirect)|![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161738.gif)|
|454 |4Sum-II  |  每日一算：4Sum II|![](https://bucket-1257126549.cos.ap-guangzhou.myqcloud.com/20181206161751.gif)| 
|642 |Design Search Autocomplete System   |  [图解 LeetCode 第 642 号问题：搜索自动完成系统](https://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247484491&idx=1&sn=b329d90370d183b5a58bbf03f6a436ae&chksm=fa0e6bcacd79e2dc05bb5eaabd888561b82c37700b511e4971aa76ec42a630c0a35ef3e4721b&token=397665543&lang=zh_CN#rd)|Made by Jun [Click here](https://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247484491&idx=1&sn=b329d90370d183b5a58bbf03f6a436ae&chksm=fa0e6bcacd79e2dc05bb5eaabd888561b82c37700b511e4971aa76ec42a630c0a35ef3e4721b&token=397665543&lang=zh_CN#rd)| 

If the link of the article cannot be clicked, it means that the article has not been published. Please look forward to it :)

## Code source 
This warehouse code unless otherwise specified, all from this warehouse 

[Play-Leetcode](https://github.com/liuyubobobo/Play-Leetcode)


## Supplement

The warehouse is kept up to date.


2018-12-29 explain：

[《2019年LeetCodeAnimationd的更新计划》](https://mp.weixin.qq.com/s?__biz=MzUyNjQxNjYyMg==&mid=2247484375&idx=1&sn=5a5482d9863342650d8b43bb59171f7c&chksm=fa0e6c56cd79e540115e52500b80c8e72001c87ddceb7c0ae1de166fd283d632b960cde41aca&token=578760218&lang=zh_CN#rd)

2018-12-07 explain:

In order to better perform LeetCode animation, i am working hard to learn more data structures and algorithms.

I am currently writing an article 《动画图解数据结构》, and will continue to update this warehouse after finishing the series of articles on animation graphic data structure.

E-mail：misterbigbooo@gmail.com

like it! star❤️ it!
