GitHub - tdytaylor/Play-Leetcode: My Solution to Leetcode problems. All solutions support C++, some support Java. Multiple solutions will be given by most problems. Enjoy:) 我的Leetcode解答。所有的问题都支持C++语言，一部分问题支持Java语言。近乎所有问题都会提供多个算法解决。大家加油！：）

This is my solutions for Leetcode

I will put my solutions of Leetcode Problems in this repo. Every problem will be solved in C++; part of the problems will be solved in Java also. I will try my best to support more language in the future :)

Please feel free to contact me if you have any problems with this repo:)

email: liuyubobobo@gmail.com

如果有任何问题，欢迎联系我：）

个人网站：liuyubobobo.com

电子邮件：liuyubobobo@gmail.com

微博: 刘宇波bobo http://weibo.com/liuyubobobo

知乎: 刘宇波 http://www.zhihu.com/people/liuyubobobo

知乎专栏：是不是很酷 https://zhuanlan.zhihu.com/liuyubobobo

个人公众号：是不是很酷：）

Problems

ID	Problem	Official Solution	C++	Java
001	Two Sum	solution	C++	Java

003	Longest-Substring-Without-Repeating-Characters	solution	C++	Java

017	Letter Combinations of a Phone Number	[无]	C++	Java

019	Remove Nth Node From End of List	solution	C++	Java
020	Valid Parentheses	[无]	C++	Java
021	Merge Two Sorted Lists	solution	C++

024	Swap Nodes in Pairs	[无]	C++	Java

034	Search for a Range	solution	C++

046	Permutations	[缺：排列算法整理]	C++	Java
047	Permutations II	[无]	C++

051	N-Queens	[缺：N皇后问题整理]	C++	Java

056	Merge Intervals	solution	C++

064	Minimum Path Sum	solution	C++	Java

070	Climbing Stairs	solution	C++	Java

075	Sort Colors	[无]	C++	Java

077	Combinations	[缺：组合算法整理]	C++	Java

079	Word Search	[无]	C++	Java

088	Merge Sorted Array	[无]	C++

094	Binary Tree Inorder Traversal	solution [缺：经典非递归算法]	C++	Java

102	Binary Tree Level Order Traversal	[无]	C++	Java

104	Maximum Depth of Binary Tree	[无]	C++	Java

112	Path Sum	[无]	C++	Java

121	Best Time to Buy and Sell Stock		C++
122	Best Time to Buy and Sell Stock II		C++
123	Best Time to Buy and Sell Stock III		C++

127	Word Ladder	[无]	C++
128	Longest Consecutive Sequence		C++

141	Linked List Cycle	solution	C++
142	Linked List Cycle II	solution	C++

144	Binary Tree Preorder Traversal	[无]	C++	Java
145	Binary Tree Postorder Traversal	[缺：经典非递归算法]	C++	Java

249	Max Points on a Line	[无]	C++

155	Min Stack	[无]	C++

167	Two Sum II - Input array is sorted	solution	C++	Java

169	Majority Element	solution	C++

188	Best-Time-to-Buy-and-Sell-Stock-IV		C++

198	House Robber	solution	C++	Java

200	Number of Islands	[无]	C++	Java

203	Remove Linked List Elements	[无]	C++	Java

206	Reverse Linked List	solution	C++	Java

208	Implement Trie (Prefix Tree)	solution	C++
209	Minimum Size Subarray Sum	solution	C++	Java

211	Add and Search Word - Data structure design	[无]	C++

213	House Robber II	[无]	C++

218	The Skyline Problem		C++
219	Contains Duplicate II	solution	C++	Java
220	Contains Duplicate III	solution	C++	Java

226	Invert Binary Tree	solution	C++	Java

235	Lowest Common Ancestor of a Binary Search Tree	[无]	C++	Java

237	Delete Node in a Linked List	solution	C++	Java

239	Sliding Window Maximum	[无]	C++

257	Binary Tree Paths	[缺：非递归算法]	C++	Java

268	Missing Number	solution	C++

279	Perfect Squares	[无]	C++	Java

283	Move Zeroes	solution	C++	Java

287	Find the Duplicate Number		C++

300	Longest Increasing Subsequence	solution	C++	Java

303	Range Sum Query - Immutable		C++

307	Range Sum Query - Mutable	[缺：BIT]	C++
308	Range Sum Query 2D - Mutable		C++
309	Best Time to Buy and Sell Stock with Cooldown		C++

319	Bulb Switcher	[无]	C++

337	House Robber III	[无]	C++

343	Integer Break	[无]	C++	Java

347	Top K Frequent Elements	[无]	C++	Java

349	Intersection of Two Arrays	[无]	C++	Java
350	Intersection of Two Arrays II	[无]	C++	Java

370	Range Addition		C++

384	Shuffle an Array	solution	C++

386	Lexicographical Numbers		C++
387	First Unique Character in a String		C++
388	Longest Absolute File Path		C++
389	Find the Difference		C++
390	Elimination Game		C++
391	Perfect Rectangle	[缺：矩形求交]	C++

416	Partition Equal Subset Sum	[无]	C++	Java

434	Number of Segments in a String		C++
435	Non-overlapping Intervals	solution	C++	Java

437	Path Sum III	[无]	C++	Java
438	Find All Anagrams in a String	[无]	C++

443	String Compression		C++

447	Number of Boomerangs	[无]	C++	Java

454	4Sum II	[无]	C++	Java
455	Assign Cookies	[无]	C++	Java

583	Delete Operation for Two Strings	solution	C++

598	Range Addition II		C++

648	Replace Words	[无]	C++

672	Bulb Switcher II	solution	C++
673	Number of Longest Increasing Subsequence	[缺：BIT；线段树]	C++
674	Longest Continuous Increasing Subsequence		C++
675	Cut Off Trees for Golf Event	[缺：A*；Hadlock's Algo]	C++
676	Implement Magic Dictionary	solution	C++
677	Map Sum Pairs	solution	C++

684	Redundant Connection	solution	C++
685	Redundant Connection II	solution	C++

690	Employee Importance	solution	C++

692	Top K Frequent Words	solution	C++

694	Number of Distinct Islands	[review: hash的方式]	C++
695	Max-Area-of-Island		C++
696	Count Binary Substrings		C++
697	Degree of an Array		C++
698	Partition to K Equal Sum Subsets		C++	Java
699	Falling Squares	[缺：线段树；块状链表]	C++

711	Number of Distinct Islands II	[review: hash的方式]	C++
712	Minimum ASCII Delete Sum for Two Strings		C++
713	Subarray Product Less Than K		C++
714	Best Time to Buy and Sell Stock with Transaction Fee		C++
715	Range Module	[缺：set查找]	C++
716	Max Stack	solution	C++
717	1-bit and 2-bit Characters		C++
718	Maximum Length of Repeated Subarray	[缺：Rolling Hash]	C++
719	Find K-th Smallest Pair Distance	[缺：二分搜索]	C++
720	Longest Word in Dictionary	solution	C++
721	Accounts Merge	solution	C++
722	Remove Comments	solution	C++
723	Candy Crush	solution	C++
724	Find Pivot Index	solution	C++
725	Split Linked List in Parts	solution	C++

727	Minimum Window Subsequence	solution	C++
728	Self Dividing Numbers	solution	C++
729	My Calendar I	solution	C++

731	My Calendar II	solution	C++
732	My Calendar III	solution	C++
733	Flood Fill	solution	C++
734	Sentence Similarity	solution	C++
735	Asteroid Collision	solution	C++
736	Parse Lisp Expression	solution	C++
737	Sentence Similarity II	solution	C++

740	Delete and Earn	solution	C++
741	Cherry Pickup	solution [缺：自底向上的动态规划]	C++

短期计划：
contest 64: 747, 751, 752, 753;
22, 527;
contest 63: 746, 748, 749, 750;
240, 200, 410, 118, 179, 287, 543, 646, 651, 647, 650, 541, 660, 659, 648, 663, 652, 661, 666, 664, 662, 657, 544, 649;
contest 62: 743, 744;
contest 61: 738, 739;
contest 59: 730;
contest 58: 726;
contest 56, ...

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This is my solutions for Leetcode

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Name		Name	Last commit message	Last commit date
Latest commit History 245 Commits
0001-Two-Sum		0001-Two-Sum
0003-Longest-Substring-Without-Repeating-Characters		0003-Longest-Substring-Without-Repeating-Characters
0017-Letter-Combinations-of-a-Phone-Number		0017-Letter-Combinations-of-a-Phone-Number
0019-Remove-Nth-Node-From-End-of-List		0019-Remove-Nth-Node-From-End-of-List
0020-Valid-Parentheses		0020-Valid-Parentheses
0021-Merge-Two-Sorted-Lists/cpp-0021		0021-Merge-Two-Sorted-Lists/cpp-0021
0024-Swap-Nodes-in-Pairs		0024-Swap-Nodes-in-Pairs
0034-Search-for-a-Range/cpp-0034		0034-Search-for-a-Range/cpp-0034
0046-Permutations		0046-Permutations
0047-Permutations-II/cpp-0047		0047-Permutations-II/cpp-0047
0051-N-Queens		0051-N-Queens
0056-Merge-Intervals/cpp-0056		0056-Merge-Intervals/cpp-0056
0064-Minimum-Path-Sum/cpp-0064		0064-Minimum-Path-Sum/cpp-0064
0070-Climbing-Stairs		0070-Climbing-Stairs
0075-Sort-Colors		0075-Sort-Colors
0077-Combinations		0077-Combinations
0079-Word-Search		0079-Word-Search
0088 Merge Sorted Array/cpp-0088		0088 Merge Sorted Array/cpp-0088
0094-Binary-Tree-Inorder-Traversal		0094-Binary-Tree-Inorder-Traversal
0102-Binary-Tree-Level-Order-Traversal		0102-Binary-Tree-Level-Order-Traversal
0104-Maximum-Depth-of-Binary-Tree		0104-Maximum-Depth-of-Binary-Tree
0112-Path-Sum		0112-Path-Sum
0121-Best-Time-to-Buy-and-Sell-Stock/cpp-0121		0121-Best-Time-to-Buy-and-Sell-Stock/cpp-0121
0122-Best-Time-to-Buy-and-Sell-Stock-II/cpp-0122		0122-Best-Time-to-Buy-and-Sell-Stock-II/cpp-0122
0123-Best-Time-to-Buy-and-Sell-Stock-III/cpp-0123		0123-Best-Time-to-Buy-and-Sell-Stock-III/cpp-0123
0127-Word-Ladder/cpp-0127		0127-Word-Ladder/cpp-0127
0128-Longest-Consecutive-Sequence/cpp-0128		0128-Longest-Consecutive-Sequence/cpp-0128
0141-Linked-List-Cycle/cpp-0141		0141-Linked-List-Cycle/cpp-0141
0142-Linked-List-Cycle-II/cpp-0142		0142-Linked-List-Cycle-II/cpp-0142
0144-Binary-Tree-Preorder-Traversal		0144-Binary-Tree-Preorder-Traversal
0145-Binary-Tree-Postorder-Traversal		0145-Binary-Tree-Postorder-Traversal
0149 Max Points on a Line/cpp-0149		0149 Max Points on a Line/cpp-0149
0155-Min-Stack/cpp-0155		0155-Min-Stack/cpp-0155
0167-Two-Sum-II-Input-array-is-sorted		0167-Two-Sum-II-Input-array-is-sorted
0169-Majority-Element/cpp-0169		0169-Majority-Element/cpp-0169
0188-Best-Time-to-Buy-and-Sell-Stock-IV/cpp-0188		0188-Best-Time-to-Buy-and-Sell-Stock-IV/cpp-0188
0198-House-Robber		0198-House-Robber
0200-Number-of-Islands		0200-Number-of-Islands
0203-Remove-Linked-List-Elements		0203-Remove-Linked-List-Elements
0206-Reverse-Linked-List		0206-Reverse-Linked-List
0208-Implement-Trie-Prefix-Tree/cpp-0208		0208-Implement-Trie-Prefix-Tree/cpp-0208
0209-Minimum-Size-Subarray-Sum		0209-Minimum-Size-Subarray-Sum
0211-Add-and-Search-Word-Data-structure-design/cpp-0211		0211-Add-and-Search-Word-Data-structure-design/cpp-0211
0213-House-Robber-II/cpp-0213		0213-House-Robber-II/cpp-0213
0218-The-Skyline-Problem/cpp-0218		0218-The-Skyline-Problem/cpp-0218
0219-Contains-Duplicate-II		0219-Contains-Duplicate-II
0220-Contains-Duplicate-III		0220-Contains-Duplicate-III
0226-Invert-Binary-Tree		0226-Invert-Binary-Tree
0235-Lowest-Common-Ancestor-of-a-Binary-Search-Tree		0235-Lowest-Common-Ancestor-of-a-Binary-Search-Tree
0237-Delete-Node-in-a-Linked-List		0237-Delete-Node-in-a-Linked-List
0239-Sliding-Window-Maximum/cpp-0239		0239-Sliding-Window-Maximum/cpp-0239
0257-Binary-Tree-Paths		0257-Binary-Tree-Paths
0268-Missing-Number/cpp-0268		0268-Missing-Number/cpp-0268
0279-Perfect-Squares		0279-Perfect-Squares
0283-Move-Zeroes		0283-Move-Zeroes
0287-Find-the-Duplicate-Number/cpp-0287		0287-Find-the-Duplicate-Number/cpp-0287
0300-Longest-Increasing-Subsequence		0300-Longest-Increasing-Subsequence
0303-Range-Sum-Query-Immutable/cpp-0303		0303-Range-Sum-Query-Immutable/cpp-0303
0307-Range-Sum-Query-Mutable/cpp-0307		0307-Range-Sum-Query-Mutable/cpp-0307
0308-Range-Sum-Query-2D-Mutable/cpp-0308		0308-Range-Sum-Query-2D-Mutable/cpp-0308
0309-Best-Time-to-Buy-and-Sell-Stock-with-Cooldown/cpp-0309		0309-Best-Time-to-Buy-and-Sell-Stock-with-Cooldown/cpp-0309
0319-Bulb-Switcher/cpp-0319		0319-Bulb-Switcher/cpp-0319
0337-House-Robber-III/cpp-0337		0337-House-Robber-III/cpp-0337
0343-Integer-Break		0343-Integer-Break
0347-Top-K-Frequent-Elements		0347-Top-K-Frequent-Elements
0349-Intersection-of-Two-Arrays		0349-Intersection-of-Two-Arrays
0350-Intersection-of-Two-Arrays-II		0350-Intersection-of-Two-Arrays-II
0370-Range-Addition/cpp-0370		0370-Range-Addition/cpp-0370
0384-Shuffle-an-Array/cpp-0384		0384-Shuffle-an-Array/cpp-0384
0386-Lexicographical-Numbers/cpp-0386		0386-Lexicographical-Numbers/cpp-0386
0387-First-Unique-Character-in-a-String/cpp-0387		0387-First-Unique-Character-in-a-String/cpp-0387
0388-Longest-Absolute-File-Path/cpp-0388		0388-Longest-Absolute-File-Path/cpp-0388
0389-Find-the-Difference/cpp-0389		0389-Find-the-Difference/cpp-0389
0390-Elimination-Game/cpp-0390		0390-Elimination-Game/cpp-0390
0391-Perfect-Rectangle/cpp-0391		0391-Perfect-Rectangle/cpp-0391
0416-Partition-Equal-Subset-Sum		0416-Partition-Equal-Subset-Sum
0434-Number of-Segments-in-a-String/cpp-0434		0434-Number of-Segments-in-a-String/cpp-0434
0435-Non-overlapping-Intervals		0435-Non-overlapping-Intervals
0437-Path-Sum-III		0437-Path-Sum-III
0438-Find-All-Anagrams-in-a-String/cpp-0438		0438-Find-All-Anagrams-in-a-String/cpp-0438
0443-String-Compression/cpp-0443		0443-String-Compression/cpp-0443
0447-Number-of-Boomerangs		0447-Number-of-Boomerangs
0454-4Sum-II		0454-4Sum-II
0455-Assign-Cookies		0455-Assign-Cookies
0583-Delete-Operation-for-Two-Strings/cpp-0583		0583-Delete-Operation-for-Two-Strings/cpp-0583
0598-Range-Addition-II/cpp-0598		0598-Range-Addition-II/cpp-0598
0648-Replace-Words/cpp-0648		0648-Replace-Words/cpp-0648
0672-Bulb-Switcher-II/cpp-0672		0672-Bulb-Switcher-II/cpp-0672
0673-Number-of-Longest-Increasing-Subsequence/cpp-0673		0673-Number-of-Longest-Increasing-Subsequence/cpp-0673
0674-Longest-Continuous-Increasing-Subsequence/cpp-0674		0674-Longest-Continuous-Increasing-Subsequence/cpp-0674
0675-Cut-Off-Trees-for-Golf-Event/cpp-0675		0675-Cut-Off-Trees-for-Golf-Event/cpp-0675
0676-Implement-Magic-Dictionary/cpp-0676		0676-Implement-Magic-Dictionary/cpp-0676
0677-Map-Sum-Pairs/cpp-0677		0677-Map-Sum-Pairs/cpp-0677
0684-Redundant-Connection/cpp-0684		0684-Redundant-Connection/cpp-0684
0685-Redundant-Connection-II/cpp-0685		0685-Redundant-Connection-II/cpp-0685
0690-Employee-Importance/cpp-0690		0690-Employee-Importance/cpp-0690
0692-Top-K-Frequent-Words/cpp-0692		0692-Top-K-Frequent-Words/cpp-0692
0694-Number-of-Distinct-Islands/cpp-0694		0694-Number-of-Distinct-Islands/cpp-0694
0695-Max-Area-of-Island/cpp-0695		0695-Max-Area-of-Island/cpp-0695
0696-Count-Binary-Substrings/cpp-0696		0696-Count-Binary-Substrings/cpp-0696

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