leetcode_finix

This repository is only to collect the problems solved by myself in LeetCode.

No.	Level	Language	Title
1	medium	C++	Two Sum way-1, way-2, way-3, way-4
2	medium	C++	Add Two Numbers
3	medium	C++	Longest Substring Without Repeated Characters
4	hard	C++	Median of Two Sorted Arrays way-1, way-2
5	medium	C++	Longest Palindromic Substring
6	easy	C++	ZigZag Conversion
7	easy	C++	Reverse Integer
8	easy	C++	String to Integer (atoi)
9	easy	C++	Palindrome Number
10	hard	C++	Regular Expression Matching
11	medium	C++	Container With Most Water
12	medium	C++	Integer to Roman
13	easy	C++	Roman to Integer
14	easy	C++	Longest Common Prefix
15	medium	C++	3 Sum
16	medium	C++	3 Sum Closet
17	medium	C++	Letters Combinations
18	medium	C++	4 Sum
19	easy	C++	Remove Nth node from end of list
20	easy	C++	Valid Parentheses
21	easy	C++	Merge Two Sorted Lists
22	medium	Python	Generate Parentheses
23	hard	C++	Merge K Sorted Lists
24	medium	C++	Swap Nodes in Pairs
25	hard	C++	Reverse Nodes in K Group
26	easy	C++	Remove Duplicates from Sorted Array
27	easy	C++	Remove Elements
28	easy	C++	Implement strStr()
29	medium	C++	Divide Two Integers
30	hard	C++	Substring with Concatenation of All Words
31	medium	Python, C++	Next Permutation Python, C++
32	hard	C++	Longest Valid Parentheses
33	medium	C++	Search in Rotated Sorted Array
34	medium	C++	Find First and Last in Sorted List
35	easy	C++	Search Insert Position way-1, way-2
36	medium	C++	Valid Soduku
37	hard	C++	Soduku Solver
38	easy	C++	Count And Say
39	medium	C++	Combination Sum
40	medium	C++	Combination Sum II
41	hard	C++	First Missing Positive
42	hard	C++	Trap Rain Water
43	medium	C++	Multiply Strings
44	hard	C++	Wildcard Matching
45	hard	C++	Jump Game II
46	medium	C++	Permutations
47	medium	C++	Permutations II
48	medium	C++	Rotate Image
49	medium	C++	Group Anagrams
50	medium	C++	Power(x,n)
51	hard	C++	N-Queens
52	hard	C++	N-Queens-II
53	easy	C++	Maximum Subarray
54	medium	C++	Spiral Matrix
55	medium	C++	Jump Game
56	medium	Python	Merge Intervals
57	medium	C++	Insert Intervals
58	easy	C++	Length Of Last Word
59	medium	C++	Spiral Matrix II
60	hard	C++	Permutation Sequence
61	medium	C++	Rotate List
62	medium	C++	Unique Paths
63	medium	C++	Unique Paths II
64	medium	C++	Mininum Path Sum
65	hard	C++	Valid Number
66	easy	C++	Plus One
67	easy	C++	Add Binary
68	hard	C++	Text Justification
69	easy	C++	Sqrt(x)
70	easy	C++	Climb Stairs
71	medium	C++	Simplify Path
72	hard	C++	Edit Distance
73	medium	C++	Set Matrix Zeros
74	medium	C++	Search a 2D Matrix
75	medium	C++	Sort Colors
76	hard	C++	Minimum Window Substring
77	medium	C++	Combinations
78	medium	C++	Subsets
79	medium	C++	Word Search
80	medium	C++	Remove Duplicates From Sorted Array II
81	medium	C++	Search In Rotated Sorted Array II
82	medium	C++	Remove Duplicates from Sorted List II
83	easy	C++	Remove Duplicates from Sorted List
84	hard	C++	Largest Rectangle in Histogram
85	hard	C++	Maximal Rectangle, way-2
86	medium	C++	Partition List
87	hard	C++	Scramble String
88	easy	C++	Merge Sorted Array
89	medium	C++	Gray Code
90	medium	C++	Subsets II
91	medium	C++	Decode Ways
92	medium	C++	Reverse Linked List II
93	medium	C++	Restore IP Addresses
94	easy	C++	Binary Tree Inorder Traversal
95	medium	C++	Unique Binary Search Tree II
96	medium	C++	Unique Binary Search Tree
97	medium	C++	Interleaving String
98	medium	C++	Validate Binary Search Tree
99	medium	C++	Recover Binary Search Tree
100	easy	C++	Same Tree
101	easy	C++	Symmetric Tree
102	medium	C++	Binary Tree Level Order Traversal
103	medium	C++	Binary Tree Zigzag Level Order Traversal
104	easy	C++	Max Depth of Binary Tree
105	medium	C++	Construct Binary Tree From Preorder and Inorder Traversal
106	medium	C++	Construct Binary Tree From Inorder and Postorder Traversal
107	medium	C++	Binary Tree Level Order Traversal II
108	easy	C++	Convert Sorted Array to Binary Search Tree
109	medium	C++	Convert Sorted List to Binary Search Tree
110	easy	C++	Balanced Binary Tree
111	easy	C++	Minimum Depth of Binary Tree
112	easy	C++	Path Sum
113	medium	C++	Path Sum II
114	medium	C++	Flatten Binary Tree to Linked List
115	hard	C++	Distinct Subsequences(way-1, way-2)
116	medium	C++	Populating Next Right Pointes in Each Node
117	medium	C++	Populating Next Right Pointes in Each Node II
118	easy	C++	Pascal Triangle
119	easy	C++	Pascal Triangle II
120	medium	C++	Triangle
121	easy	C++	Best Time to Buy and Sell Stock
122	medium	C++	Best Time to Buy and Sell Stock II
123	hard	C++	Best Time to Buy and Sell Stock III
124	hard	C++	Binary Tree Maximum Path Sum
125	easy	C++	Valid Palindrome
126	hard	C++	Word Ladder II， variant-2
127	hard	C++	Word Ladder - way-1, Word Ladder - way-2
128	medium	C++	Longest Consecutive Sequence
129	medium	C++	Sum Root to Leaf Numbers
130	medium	C++	Surrounded Regions
131	medium	C++	Palindrome Patitioning
132	hard	C++	Palindrome Patitioning II
133	medium	C++	Clone Graph
134	medium	C++	Gas Station
135	hard	Java	Candy
136	easy	C++	Single Number
137	medium	C++	Single Number II
138	medium	Java	Copy List With Random Pointer
139	medium	Java	Word Break
140	hard	Java	Word Break II
141	easy	C++	Linked List Cycle
142	medium	Java	Linked List Cycle II
143	medium	Java	Reorder List
144	easy	C++	Binary Tree Preorder Traversal
145	easy	C++	Binary Tree Postorder Traversal
146	medium	C++	LRU Cache way-1, way-2
147	medium	C++	Insertion Sort List
148	medium	C++	Sort List
149	hard	Java	Max Points on A Line
150	medium	Java	Evaluate Reverse Polish Notation way-1, way-2
151	medium	Java	Reverse Words In a String
152	medium	Java	Maxium Product Sub Array
153	medium	Java	Find Minimum in Rotated Sorted Array
154	hard	Java	Find Minimum in Rotated Sorted Array II
155	medium	C++	Min Stack,way-2
160	easy	C++	Intersection of Two Linked Lists
160	easy	Java	Intersection of Two Linked Lists
162	medium	C++	Find Peak Element
164	medium	C++	Maximum Gap
165	medium	Java	Compare Version Numbers
166	medium	Java	Fraction To Recurring Numbers
167	medium	Java	Two Sum II Input Array Is Sorted
168	easy	Python	Excel Sheet Column Title
169	easy	Python	Majority Element
171	easy	Python	Excel Sheet Column Number
172	medium	Java	Factorial Trailing Zeroes
173	medium	Java	Binary Search Tree Iterator
174	hard	Java	Dungeon Game
175	easy	SQL	Combine Two Tables
176	medium	SQL	Second Highest Salary
177	medium	SQL	Nth Highest Salary
179	medium	Java	Largest Number
187	medium	Python	Repeated DNA Sequences
208	medium	C++	Implement Trie Tree
226	easy	C++	Invert Binary Tree
238	medium	C++	Product of Array Except self
242	easy	C++	Valid Anagram
258	easy	C++	Add Digits
263	easy	C++	Ugly Number
289	medium	C++	Game of Life
290	easy	C++	Word Pattern
292	easy	C++	Nim Game
300	medium	C++	Longest Increasing Subsequence
322	medium	C++	Coin Change
437	medium	C++	Path Sum III
543	easy	C++	Diameter Of Binary Tree
1373	hard	C++	Maximum Sum BST in Binary Tree