leetcode

Leetcode solutions

Algorithms

� 统计

languages	Difficulty	count	total
cpp	Easy	27	76
	Medium	44
	Hard	5
javascript	Easy	63	145
	Medium	75
	Hard	7
golang	Easy	60	128
	Hard	13
	Medium	55
rust	Easy	8	10
	Hard	1
	Medium	1

详情

#	Title	Solution	Difficulty
1	Two Sum	C++, javascript, golang, rust	Easy
2	Add Two Numbers	C++, javascript	Medium
3	Longest Substring Without Repeating Characters	C++, javascript	Medium
4	Median of Two Sorted Arrays	javascript	Hard
5	Longest Palindromic Substring	javascript, golang	Medium
6	ZigZag Conversion	javascript, golang	Medium
7	Reverse Integer	javascript	Medium
8	String to Integer (atoi)	javascript, golang	Medium
9	Palindrome Number	javascript	Easy
10	Regular Expression Matching	golang	Hard
11	Container With Most Water	C++, javascript, golang	Medium
14	Longest Common Prefix	C++, javascript, golang	Easy
15	3Sum	javascript, golang	Medium
16	3Sum Closest	javascript	Medium
17	Letter Combinations of a Phone Number	C++, javascript, golang	Medium
18	4Sum	C++	Medium
20	Valid Parentheses	javascript, golang, rust	Easy
21	Merge Two Sorted Lists	C++, javascript, golang	Easy
22	Generate Parentheses	C++, javascript, golang	Medium
24	Swap Nodes in Pairs	C++, javascript, golang	Medium
25	Reverse Nodes in k-Group	golang	Hard
26	Remove Duplicates from Sorted Array	javascript, golang, rust	Easy
27	Remove Element	javascript	Easy
28	Implement strStr()	javascript	Easy
32	Longest Valid Parentheses	javascript	Hard
33	Search in Rotated Sorted Array	golang	Medium
35	Search Insert Position	javascript	Easy
36	Valid Sudoku	javascript, golang	Medium
37	Sudoku Solver	C++, javascript, golang	Hard
39	Combination Sum	javascript	Medium
40	Combination Sum II	javascript	Medium
45	Jump Game II	C++, golang	Medium
46	Permutations	javascript	Medium
47	Permutations II	javascript	Medium
49	Group Anagrams	javascript, golang, rust	Medium
50	Pow(x, n)	golang	Medium
51	N-Queens	C++, C++, javascript, golang	Hard
53	Maximum Subarray	C++, javascript, golang	Easy
55	Jump Game	C++, javascript, golang	Medium
56	Merge Intervals	javascript, golang	Medium
58	Length of Last Word	golang	Easy
60	Permutation Sequence	javascript	Hard
62	Unique Paths	C++, javascript	Medium
63	Unique Paths II	javascript, golang	Medium
64	Minimum Path Sum	C++	Medium
66	Plus One	C++, javascript, golang, rust	Easy
67	Add Binary	javascript	Easy
69	Sqrt(x)	golang	Easy
70	Climbing Stairs	C++, javascript, golang, rust	Easy
72	Edit Distance	golang	Hard
74	Search a 2D Matrix	golang	Medium
75	Sort Colors	javascript	Medium
77	Combinations	C++, javascript, golang	Medium
78	Subsets	C++, javascript, golang	Medium
79	Word Search	C++, javascript	Medium
80	Remove Duplicates from Sorted Array II	javascript	Medium
84	Largest Rectangle in Histogram	golang	Hard
88	Merge Sorted Array	javascript, golang	Easy
90	Subsets II	javascript	Medium
92	Reverse Linked List II	javascript	Medium
94	Binary Tree Inorder Traversal	C++, javascript, golang	Easy
98	Validate Binary Search Tree	javascript, golang	Medium
100	Same Tree	javascript	Easy
101	Symmetric Tree	javascript	Easy
102	Binary Tree Level Order Traversal	C++, javascript, golang	Medium
103	Binary Tree Zigzag Level Order Traversal	javascript	Medium
104	Maximum Depth of Binary Tree	javascript, golang	Easy
105	Construct Binary Tree from Preorder and Inorder Traversal	C++, golang	Medium
110	Balanced Binary Tree	C++, javascript	Easy
111	Minimum Depth of Binary Tree	C++, golang	Easy
114	Flatten Binary Tree to Linked List	C++, javascript	Medium
115	Distinct Subsequences	golang	Hard
118	Pascal's Triangle	javascript	Easy
119	Pascal's Triangle II	javascript	Easy
120	Triangle	javascript, golang	Medium
121	Best Time to Buy and Sell Stock	C++	Easy
122	Best Time to Buy and Sell Stock II	C++, javascript, golang	Medium
125	Valid Palindrome	javascript, golang	Easy
126	Word Ladder II	golang	Hard
127	Word Ladder	C++, golang	Hard
130	Surrounded Regions	golang	Medium
139	Word Break	javascript	Medium
141	Linked List Cycle	C++, javascript, golang	Easy
142	Linked List Cycle II	C++, javascript, golang	Medium
143	Reorder List	javascript	Medium
144	Binary Tree Preorder Traversal	javascript, golang	Easy
145	Binary Tree Postorder Traversal	javascript	Easy
146	LRU Cache	golang	Medium
147	Insertion Sort List	javascript	Medium
148	Sort List	javascript	Medium
151	Reverse Words in a String	javascript, golang	Medium
152	Maximum Product Subarray	C++, golang	Medium
153	Find Minimum in Rotated Sorted Array	golang	Medium
155	Min Stack	golang, rust	Easy
167	Two Sum II - Input Array Is Sorted	javascript	Medium
169	Majority Element	C++, javascript, golang	Easy
179	Largest Number	javascript	Medium
189	Rotate Array	C++, javascript, golang	Medium
190	Reverse Bits	C++, javascript, golang	Easy
191	Number of 1 Bits	golang	Easy
198	House Robber	C++, javascript, golang	Medium
200	Number of Islands	javascript, golang	Medium
203	Remove Linked List Elements	golang	Easy
205	Isomorphic Strings	javascript, golang	Easy
206	Reverse Linked List	C++, javascript, golang	Easy
208	Implement Trie (Prefix Tree)	C++, javascript, golang	Medium
209	Minimum Size Subarray Sum	javascript	Medium
211	Design Add and Search Words Data Structure	javascript	Medium
212	Word Search II	C++, golang	Hard
213	House Robber II	C++, javascript, golang	Medium
215	Kth Largest Element in an Array	javascript	Medium
226	Invert Binary Tree	golang	Easy
231	Power of Two	golang	Easy
239	Sliding Window Maximum	golang, rust	Hard
242	Valid Anagram	javascript, golang, rust	Easy
258	Add Digits	C++	Easy
274	H-Index	javascript	Medium
283	Move Zeroes	C++, javascript, golang, rust	Easy
287	Find the Duplicate Number	golang	Medium
299	Bulls and Cows	C++, javascript, golang	Medium
300	Longest Increasing Subsequence	C++, javascript	Medium
312	Burst Balloons	javascript	Hard
322	Coin Change	C++, golang	Medium
334	Increasing Triplet Subsequence	C++	Medium
338	Counting Bits	golang	Easy
343	Integer Break	golang	Medium
344	Reverse String	golang	Easy
345	Reverse Vowels of a String	javascript	Easy
347	Top K Frequent Elements	C++, javascript	Medium
349	Intersection of Two Arrays	javascript	Easy
350	Intersection of Two Arrays II	javascript	Easy
367	Valid Perfect Square	C++, golang	Easy
376	Wiggle Subsequence	C++	Medium
380	Insert Delete GetRandom O(1)	golang	Medium
387	First Unique Character in a String	C++, javascript, golang	Easy
389	Find the Difference	C++	Easy
392	Is Subsequence	C++	Easy
401	Binary Watch	javascript	Easy
405	Convert a Number to Hexadecimal	javascript	Easy
412	Fizz Buzz	golang	Easy
415	Add Strings	javascript	Easy
429	N-ary Tree Level Order Traversal	C++, javascript, golang	Medium
433	Minimum Genetic Mutation	javascript, golang	Medium
438	Find All Anagrams in a String	javascript, golang	Medium
441	Arranging Coins	javascript	Easy
455	Assign Cookies	golang	Easy
459	Repeated Substring Pattern	C++, javascript	Easy
463	Island Perimeter	golang	Easy
491	Increasing Subsequences	C++	Medium
493	Reverse Pairs	golang	Hard
504	Base 7	javascript	Easy
509	Fibonacci Number	javascript, golang	Easy
515	Find Largest Value in Each Tree Row	golang	Medium
528	Random Pick with Weight	golang	Medium
529	Minesweeper	C++, golang	Medium
541	Reverse String II	javascript, golang	Easy
547	Number of Provinces	C++, javascript, golang	Medium
557	Reverse Words in a String III	C++, javascript, golang	Easy
575	Distribute Candies	javascript	Easy
589	N-ary Tree Preorder Traversal	golang	Easy
590	N-ary Tree Postorder Traversal	golang	Easy
599	Minimum Index Sum of Two Lists	golang	Easy
622	Design Circular Queue	javascript	Medium
628	Maximum Product of Three Numbers	golang	Easy
633	Sum of Square Numbers	javascript	Medium
641	Design Circular Deque	C++, javascript	Medium
646	Maximum Length of Pair Chain	C++, javascript	Medium
654	Maximum Binary Tree	javascript	Medium
657	Robot Return to Origin	C++	Easy
661	Image Smoother	golang	Easy
665	Non-decreasing Array	golang	Medium
673	Number of Longest Increasing Subsequence	C++, javascript	Medium
680	Valid Palindrome II	golang	Easy
682	Baseball Game	golang	Easy
692	Top K Frequent Words	javascript	Medium
693	Binary Number with Alternating Bits	javascript, golang	Easy
696	Count Binary Substrings	C++, javascript	Easy
701	Insert into a Binary Search Tree	javascript	Medium
704	Binary Search	javascript	Easy
709	To Lower Case	javascript, golang	Easy
712	Minimum ASCII Delete Sum for Two Strings	C++	Medium
717	1-bit and 2-bit Characters	golang	Easy
724	Find Pivot Index	golang	Easy
744	Find Smallest Letter Greater Than Target	golang	Easy
746	Min Cost Climbing Stairs	C++	Easy
762	Prime Number of Set Bits in Binary Representation	javascript	Easy
771	Jewels and Stones	golang	Easy
773	Sliding Puzzle	golang	Hard
841	Keys and Rooms	C++	Medium
859	Buddy Strings	javascript	Easy
860	Lemonade Change	C++, javascript, golang	Easy
866	Prime Palindrome	C++	Medium
868	Binary Gap	javascript	Easy
872	Leaf-Similar Trees	javascript	Easy
874	Walking Robot Simulation	C++, golang	Medium
888	Fair Candy Swap	golang	Easy
892	Surface Area of 3D Shapes	javascript	Easy
897	Increasing Order Search Tree	javascript	Easy
901	Online Stock Span	javascript	Medium
917	Reverse Only Letters	javascript, golang	Easy
933	Number of Recent Calls	golang	Easy
950	Reveal Cards In Increasing Order	javascript	Medium
973	K Closest Points to Origin	javascript	Medium
978	Longest Turbulent Subarray	golang	Medium
987	Vertical Order Traversal of a Binary Tree	javascript	Hard
989	Add to Array-Form of Integer	golang	Easy
1002	Find Common Characters	C++	Easy
1009	Complement of Base 10 Integer	javascript	Easy
1016	Binary String With Substrings Representing 1 To N	javascript	Medium
1017	Convert to Base -2	javascript	Medium
1018	Binary Prefix Divisible By 5	javascript	Easy
1022	Sum of Root To Leaf Binary Numbers	javascript	Easy
1030	Matrix Cells in Distance Order	javascript	Easy
1033	Moving Stones Until Consecutive	javascript	Medium
1071	Greatest Common Divisor of Strings	javascript	Easy
1079	Letter Tile Possibilities	golang	Medium
1081	Smallest Subsequence of Distinct Characters	C++	Medium
1091	Shortest Path in Binary Matrix	C++, golang	Medium
1094	Car Pooling	javascript	Medium
1122	Relative Sort Array	javascript, golang	Easy
1128	Number of Equivalent Domino Pairs	golang	Easy
1143	Longest Common Subsequence	C++, javascript, golang	Medium
1232	Check If It Is a Straight Line	golang	Easy
1405	Longest Happy String	golang	Medium
1984	Minimum Difference Between Highest and Lowest of K Scores	golang	Easy
2038	Remove Colored Pieces if Both Neighbors are the Same Color	golang	Medium