leetcode

leetcode
力扣

solutions

#	Title	Solution	Difficulty	Thinking
1	Two Sum	JavaScript,Java	Easy	click
2	Add Two Numbers	JavaScript,Java	Medium	click
3	Longest Substring Without Repeating Characters	JavaScript,Java	Medium	click
4	Median of Two Sorted Arrays	JavaScript,Java	Hard	click
5	Longest Palindromic Substring	JavaScript,Java	Medium	click
6	ZigZag Conversion	JavaScript,Java	Medium	click
7	Reverse Integer	JavaScript,Java	Easy	click
8	String to Integer (atoi)	JavaScript,Java	Medium	click
9	Palindrome Number	JavaScript,Java	Easy	click
10	Regular Expression Matching	Java	Hard	click
11	Container With Most Water	JavaScript,Java	Medium	click
12	Integer to Roman	JavaScript,Java	Medium	click
13	Roman to Integer	JavaScript,Java	Easy	click
14	Longest Common Prefix	JavaScript,Java	Easy	click
15	3Sum	JavaScript,Java	Medium	click
16	3Sum Closest	JavaScript,Java	Medium	click
17	Letter Combinations of a Phone Number	JavaScript,Java	Medium	click
18	4Sum	JavaScript,Java	Medium	click
19	Remove Nth Node From End of List	JavaScript,Java	Medium	click
20	Valid Parentheses	JavaScript,Java	Easy	click
21	Merge Two Sorted Lists	JavaScript,Java	Easy	click
22	Generate Parentheses	JavaScript,Java	Medium	click
23	Merge k Sorted Lists	JavaScript,Java	Hard	click
24	Swap Nodes in Pairs	JavaScript,Java	Medium	click
25	Reverse Nodes in k-Group	JavaScript,Java	Hard	click
26	Remove Duplicates from Sorted Array	JavaScript,Java	Easy	click
27	Remove Element	JavaScript,Java	Easy	click
28	Implement strStr()	JavaScript,Java	Easy	click
29	Divide Two Integers	Cpp,Java	Medium	click
30	Substring with Concatenation of All Words	JavaScript,Java	Hard	click
31	Next Permutation	JavaScript,Java	Medium	click
32	Longest Valid Parentheses	JavaScript,Java	Hard	click
33	Search in Rotated Sorted Array	JavaScript,Java	Medium	click
34	Search for a Range	JavaScript,Java	Medium	click
35	Search Insert Position	JavaScript,Java	Easy	click
36	Valid Sudoku	JavaScript,Java	Medium	click
38	Count and Say	JavaScript,Java	Easy	click
39	Combination Sum	JavaScript	Medium	x
40	Combination Sum II	JavaScript	Medium	x
41	First Missing Positive	JavaScript,Java	Hard	click
42	Trapping Rain Water	JavaScript,Java	Hard	click
43	Multiply Strings	JavaScript	Medium	x
45	Jump Game II	JavaScript,Java	Hard	click
46	Permutations	JavaScript	Medium	x
47	Permutations II	JavaScript	Medium	x
48	Rotate Image	JavaScript	Medium	x
49	Group Anagrams	JavaScript	Medium	x
50	Pow(x, n)	JavaScript	Medium	x
51	N-Queens	JavaScript	Hard	x
52	N-Queens II	JavaScript	Hard	x
53	Maximum Subarray	JavaScript,Java	Easy	click
54	Spiral Matrix	JavaScript	Medium	x
55	Jump Game	JavaScript,Java	Medium	click
56	Merge Intervals	JavaScript	Medium	x
57	Insert Interval	JavaScript	Hard	x
58	Length of Last Word	JavaScript	Easy	x
59	Spiral Matrix II	JavaScript	Medium	x
60	Permutation Sequence	JavaScript	Medium	x
62	Unique Paths	JavaScript	Medium	x
63	Unique Paths II	JavaScript	Medium	x
64	Minimum Path Sum	JavaScript	Medium	x
65	Valid Number	JavaScript	Hard	x
66	Plus One	JavaScript,Java	Easy	click
67	Add Binary	JavaScript	Easy	x
69	Sqrt(x)	JavaScript	Easy	x
70	Climbing Stairs	JavaScript	Easy	x
71	Simplify Path	JavaScript,Java	Medium	click
73	Set Matrix Zeroes	JavaScript	Medium	x
74	Search a 2D Matrix	JavaScript	Medium	x
75	Sort Colors	JavaScript,Java	Medium	click
76	Minimum Window Substring	JavaScript	Hard	x
77	Combinations	JavaScript	Medium	x
78	Subsets	JavaScript	Medium	x
79	Word Search	JavaScript	Medium	x
80	Remove Duplicates from Sorted Array II	JavaScript,Java	Medium	click
81	Search in Rotated Sorted Array II	JavaScript	Medium	x
82	Remove Duplicates from Sorted List II	JavaScript	Medium	x
83	Remove Duplicates from Sorted List	JavaScript,Java	Easy	click
86	Partition List	JavaScript	Medium	x
88	Merge Sorted Array	JavaScript,Java	Easy	click
89	Gray Code	JavaScript,Java	Medium	click
90	Subsets II	JavaScript	Medium	x
91	Decode Ways	JavaScript	Medium	x
92	ReverseLinkedListII	JavaScript	Medium	x
93	Restore IP Addresses	JavaScript	Medium	x
94	Binary Tree Inorder Traversal	JavaScript	Medium	x
96	Unique Binary Search Trees	JavaScript	Medium	x
100	Same Tree	JavaScript	Easy	x
101	Symmetric Tree	JavaScript	Easy	x
104	Maximum Depth of Binary Tree	JavaScript	Easy	x
110	Balanced Binary Tree	JavaScript	Easy	x
111	Minimum Depth of Binary Tree	JavaScript	Easy	x
112	Path Sum	JavaScript	Easy	x
113	Path Sum II	JavaScript	Medium	x
118	Pascal's Triangle	JavaScript	Easy	x
119	Pascal's Triangle II	JavaScript	Easy	x
120	Triangle	JavaScript,Java	Medium	click
125	Valid Palindrome	JavaScript,Java	Easy	click
135	Candy	JavaScript	Hard	x
136	Single Number	JavaScript,Java	Easy	click
137	Single Number II	JavaScript,Java	Medium	click
146	LRU Cache	JavaScript	Hard	x
149	Max Points on a Line	JavaScript	Hard	x
150	Evaluate Reverse Polish Notation	JavaScript	Medium	x
151	Reverse Words in a String	JavaScript	Medium	x
152	Maximum Product Subarray	JavaScript	Medium	x
153	Find Minimum in Rotated Sorted Array	JavaScript	Medium	x
154	Find Minimum in Rotated Sorted Array II	JavaScript	Hard	x
155	Min Stack	JavaScript,Java	Easy	click
162	Find Peak Element	JavaScript	Medium	x
164	Maximum Gap	JavaScript	Hard	x
169	Majority Element	JavaScript	Easy	x
174	Dungeon Game	JavaScript	Hard	x
175	Combine Two Tables	Mysql	Easy	click
177	Nth Highest Salary	Mysql	Medium	click
178	Rank Scores	Mysql	Medium	click
179	Largest Number	JavaScript,Java	Medium	click
182	Duplicate Emails	Mysql	Easy	click
189	Rotate Array	JavaScript	Easy	x
190	Reverse Bits	JavaScript	Easy	x
191	Number of 1 Bits	JavaScript	Easy	x
192	Word Frequency	Shell	Medium	click
193	Valid Phone Numbers	Shell	Easy	click
194	Transpose File	Shell	Medium	click
195	Tenth Line	Shell	Easy	click
196	Delete Duplicate Emails	Mysql	Easy	click
197	Rising Temperature	Mysql	Easy	click
198	House Robber	JavaScript,Java	Easy	click
199	Binary Tree Right Side View	JavaScript	Medium	x
200	Number of Islands	JavaScript	Medium	x
202	Happy Number	JavaScript,Java	Easy	click
203	Remove Linked List Elements	JavaScript,Java	Easy	click
204	Count Primes	JavaScript,Java	Easy	click
205	Isomorphic Strings	JavaScript,Java	Easy	click
206	Reverse Linked List	JavaScript,Java	Easy	click
213	House Robber II	JavaScript,Java	Medium	click
217	Contains Duplicate	Java	Easy	click
229	Majority Element II	JavaScript,Java	Medium	click
231	Power of Two	JavaScript,Java	Easy	click
233	Number of Digit One	JavaScript,Java	Hard	click
240	Search a 2D Matrix II	JavaScript,Java	Medium	click
242	Valid Anagram	JavaScript,Java	Easy	click
274	H-Index	Javascript,Java	Medium	click
278	First Bad Version	Cpp,Java	Easy	click
283	Move Zeroes	Javascript	Easy	x
292	Nim Game	Java	Easy	click
326	Power of Three	Javascript,Java	Easy	click
338	Counting Bits	Javascript	Easy	x
342	Power of Four	Javascript,Java	Easy	click
343	Integer Break	Javascript	Medium	x
344	Reverse String	Javascript	Easy	x
349	Intersection of Two Arrays	Javascript	Easy	x
350	Intersection of Two Arrays II	Javascript	Easy	x
374	Guess Number Higher or Lower	Cpp,Java	Easy	click
375	Guess Number Higher or Lower II	JavaScript,Java	Medium	click
383	Ransom Note	JavaScript,Java	Easy	click
384	Shuffle an Array	JavaScript,Java	Medium	click
387	FirstUniqueCharacterinaString	JavaScript,Java	Easy	click
390	Elimination Game	JavaScript,Java	Medium	click
391	Perfect Rectangle	JavaScript	Hard	x
400	Nth Digit	JavaScript,Java	Medium	click
401	Binary Watch	JavaScript,Java	Easy	click
437	Path Sum III	JavaScript,Java	Easy	click
452	Minimum Number of Arrows to Burst Balloons	JavaScript,Java	Medium	click
460	LFU Cache	JavaScript,Java	Hard	click
461	Hamming Distance	JavaScript,Java	Easy	click
492	Construct the Rectangle	JavaScript,Java	Easy	click
507	Perfect Number	JavaScript,Java	Easy	click
540	Single Element in a Sorted Array	JavaScript,Java	Medium	click
561	Array Partition I	JavaScript,Java	Easy	click
567	Permutation in String	JavaScript,Java	Medium	click
593	Valid Square	JavaScript,Java	Medium	click
595	Big Countries	Mysql	Easy	click
620	Not Boring Movies	Mysql	Easy	click
648	Replace Words	JavaScript,Java	Medium	click
717	1-bit and 2-bit Characters	JavaScript,Java	Easy	click
739	Daily Temperatures	JavaScript,Java	Medium	click
1175	Prime Arrangements	Java	Easy	click

contest

#	Title	Intro	Ranking
1	2019 力扣杯全国秋季编程大赛	view	click