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LeetCode

My solutions of LeetCode practices

# Title Programming Language Date Difficulty
191 Number of 1 Bits C++ 2015/3/29 Easy
1 Two Sum C++ 2015/3/30 Medium
2 Add Two Numbers C++ 2015/3/31 Medium
3 Longest Substring Without Repeating Characters C++ 2015/4/1 Medium
6 ZigZag Conversion C++ 2015/4/3 Easy
7 Reverse Integer C++ 2015/4/7 Easy
8 String to Integer(atoi) C++ 2015/4/7 Easy
9 Palindrome Number C++ 2015/4/8 Easy
11 Container With Most Water C++ 2015/4/9 Medium
12 Integer to Roman C++ 2015/4/10 Medium
13 Roman to Integer C++ 2015/4/11 Easy
14 Longest Common Prefix C++ 2015/4/12 Easy
15 3Sum C++ 2015/4/13 Medium
16 3Sum Closest C++ 2015/4/14 Medium
18 4Sum C++ 2015/4/21 Medium
19 Remove Nth Node From End of List C++ 2015/4/21 Easy
20 Valid Parentheses C++ 2015/4/22 Easy
21 Merge Tow Sorted Lists C++ 2015/4/24 Easy
24 Swap Nodes in Pairs C++ 2015/4/25 Medium
26 Remove Duplicates from Sorted Array C++ 2015/4/26 Easy
27 Remove Element C++ 2015/4/27 Easy
28 Implement strStr() C++ 2015/4/27 Easy
35 Search Insert Position C++ 2015/4/29 Medium
34 Search for a Range C++ 2015/4/30 Medium
33 Search in Rotated Sorted Array C++ 2015/4/30 Hard
29 Divide Two Integers C++ 2015/5/2 Medium
38 Count and Say C++ 2015/5/2 Easy
41 First Missing Positive C++ 2015/5/4 Hard
43 Muliply Strings C++ 2015/5/6 Medium
48 Rotate Image C++ 2015/5/8 Medium
50 Pow(x, n) C++ 2015/5/8 Medium
53 Maximum Subarray C++ 2015/5/9 Medium
58 Length of Last Word C++ 2015/5/10 Easy
54 Spiral Matrix C++ 2015/5/12 Medium
55 Jump Game C++ 2015/5/12 Medium
56 Merge Intervals C++ 2015/5/14 Hard
57 Insert Interval C++ 2015/5/15 Hard
59 Spiral Matrix II C++ 2015/5/15 Medium
66 Plus One C++ 2015/5/17 Easy
67 Add Binary C++ 2015/5/17 Easy
69 Sqrt(x) C++ 2015/5/18 Medium
70 Climbing Stairs C++ 2015/5/19 Easy
73 Set Matrix Zeroes C++ 2015/5/20 Medium
74 Search a 2D Matrix C++ 2015/5/20 Medium
75 Sort Colors C++ 2015/5/21 Medium
77 Combinations C++ 2015/5/21 Medium
78 Subsets C++ 2015/5/22 Medium
80 Remove Duplicates from Sorted Array II C++ 2015/5/22 Medium
81 Search in Rotated Sorted Array II C++ 2015/5/23 Medium
83 Remove Duplicates from Sorted List C++ 2015/5/24 Easy
82 Remove Duplicates from Sorted List II C++ 2015/5/25 Medium
88 Merge Sorted Array C++ 2015/5/26 Easy
86 Partition List C++ 2015/5/27 Medium
100 Same Tree C++ 2015/5/27 Easy
90 Subsets II C++ 2015/5/29 Medium
94 Binary Tree Inorder Traversal C++ 2015/5/30 Medium
89 Gray Code C++ 2015/5/31 Medium
102 Binary Tree Level Order Traversal C++ 2015/5/31 Easy
101 Symmetric Tree C++ 2015/6/1 Easy
104 Maximum Depth of Binary Tree C++ 2015/6/1 Easy
107 Binary Tree Level Order Traversal II C++ 2015/6/2 Easy
111 Minimum Depth of Binary Tree C++ 2015/6/2 Easy
110 Balanced Binary Tree C++ 2015/6/3 Easy
112 Path Sum C++ 2015/6/3 Easy
118 Pascal's Triangle C++ 2015/6/4 Easy
119 Pascal's Triangle II C++ 2015/6/4 Easy
116 Populating Next Right Pointers in Each Node C++ 2015/6/5 Medium
121 Best Time to Buy and Sell Stock C++ 2015/6/6 Medium
122 Best Time to Buy and Sell Stock II C++ 2015/6/6 Medium
125 Valid Palindrome C++ 2015/6/7 Easy
129 Sum Root to Leaf Numbers C++ 2015/6/8 Medium
105 Construct Binary Tree from Preorder and Inorder Traversal C++ 2015/6/9 Medium
49 Anagrams C++ 2015/6/9 Medium
106 Construct Binary Tree from Inorder and Postorder Traversal C++ 2015/6/10 Medium
103 Binary Tree Zigzag Level Order Traversal C++ 2015/6/11 Medium
114 Flatten Binary Tree to Linked List C++ 2015/6/12 Medium
92 Reverse Linked ListII C++ 2015/6/13 Medium
226 Invert Binary Tree C++ 2015/6/13 Easy
144 Binary Tree Preorder Traversal C++ 2015/6/14 Medium
145 Binary Tree Postorder Traversal C++ 2015/6/15 Hard
206 Reverse Linked List C++ 2015/6/16 Easy
153 Find Minimum in Rotated Sorted Array C++ 2015/6/17 Medium
154 Find Minimum in Rotated Sorted Array II C++ 2015/6/18 Hard
155 Min Stack C++ 2015/6/19 Easy
160 Intersection of Two Linked Lists C++ 2015/6/20 Easy
162 Find Peak Element C++ 2015/6/21 Medium
165 Compare Version Numbers C++ 2015/6/22 Easy
169 Majority Element C++ 2015/6/23 Easy
171 Excel Sheet Column Number C++ 2015/6/24 Easy
168 Excel Sheet Column Title C++ 2015/6/25 Easy
190 Reverse Bits C++ 2015/6/26 Easy
189 Rotate Array C++ 2015/6/28 Easy
202 Happy Number C++ 2015/6/28 Easy
61 Rotate List C++ 2015/6/29 Medium
136 Single Number C++ 2015/6/29 Medium
203 Remove Linked List Elements C++ 2015/6/30 Easy
199 Binary Tree Right Side View C++ 2015/7/1 Medium
205 Isomorphic Strings C++ 2015/7/1 Easy
217 Contains Duplicate C++ 2015/7/2 Easy
204 Count Primes C++ 2015/7/2 Easy
219 Contains Duplicate II C++ 2015/7/3 Easy
172 Factorial Trailing Zeroes C++ 2015/7/4 Easy
36 Valid Sudoku C++ 2015/7/5 Easy
198 House Robber C++ 2015/7/5 Easy
223 Rectangle Area C++ 2015/7/6 Easy
17 Letter Combinations of a Phone Number C++ 2015/7/6 Medium
22 Generate Parentheses C++ 2015/7/6 Easy
31 Next Permutation C++ 2015/7/7 Medium
39 Combination Sum C++ 2015/7/8 Medium
40 Combination Sum II C++ 2015/7/8 Medium
216 Combination Sum III C++ 2015/7/8 Medium
46 Permutations C++ 2015/7/9 Medium
62 Unique Paths C++ 2015/7/11 Medium
60 Permutation Sequence C++ 2015/7/11 Medium
63 Unique Paths II C++ 2015/7/11 Medium
64 Minimum Path Sum C++ 2015/7/12 Medium
71 Simplify Path C++ 2015/7/13 Medium
96 Unique Binary Search Trees C++ 2015/7/14 Medium
95 Unique Binary Search Trees II C++ 2015/7/15 Medium
108 Convert Sorted Array to Binary Search Tree C++ 2015/7/15 Medium
109 Convert Sorted List to Binary Search Tree C++ 2015/7/15 Medium
113 Path Sum II C++ 2015/7/15 Medium
120 Triangle C++ 2015/7/16 Medium
137 Single Number II C++ 2015/7/16 Medium
141 Linked List Cycle C++ 2015/7/16 Medium
142 Linked List Cycle II C++ 2015/7/16 Medium
213 House Robber II C++ 2015/7/17 Medium
173 Binary Search Tree Iterator C++ 2015/7/17 Medium
215 Kth Largest Element in an array C++ 2015/7/17 Medium
147 Insertion Sort List C++ 2015/7/18 Medium
98 Validate Binary Search Tree C++ 2015/7/19 Medium
201 Bitwise AND of Numbers Range C++ 2015/7/20 Medium
5 Longest Palindromic Substring C++ 2015/7/21 Medium
79 Word Search C++ 2015/7/22 Medium
93 Restore IP Addresses C++ 2015/7/23 Medium
131 Palindrome Partition C++ 2015/7/24 Medium

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