LeetCode

LeetCode solutions in C++ 11. (From Easy to Hard)

NO.	Title	Solution	Add Date	Difficulty
1	Single Number	C++	2014/10/15	Medium
2	Maximum Depth of Binary Tree	C++	2014/10/16	Easy
3	Same Tree	[C++](003.%20Same Tree/solution.h)	2014/10/17	Easy
4	Reverse Integer	C++	2014/10/18	Easy
5	Best Time to Buy and Sell Stock II	C++	2014/10/19	Medium
6	Unique Binary Search Trees	[C++](006.%20Unique Binary Search Trees/solution.h)	2014/10/20	Medium
7	Linked List Cycle	C++	10/21/2014	Medium
8	Binary Tree Inorder Traversal	C++	10/22/2014	Medium
9	Binary Tree Preorder Traversal	C++	10/23/2014	Medium
10	Populating Next Right Pointers in Each Node	C++	10/24/2014	Medium
11	Search Insert Position	C++	10/25/2014	Medium
12	Remove Duplicates from Sorted List	C++	10/26/2014	Easy
13	Climbing Stairs	C++	10/27/2014	Easy
14	Maximum Subarray	C++	10/28/2014	Medium
15	N-Queens II	C++	10/29/2014	Hard
16	Roman to Integer	C++	10/30/2014	Easy
17	Integer to Roman	C++	10/31/2014	Medium
18	Single Number II	C++	11/1/2014	Medium
19	Merge Two Sorted Lists	C++	11/2/2014	Easy
20	Remove Element	C++	11/3/2014	Easy
21	Convert Sorted Array to Binary Search Tree	C++	11/4/2014	Medium
22	Balanced Binary Tree	C++	11/5/2014	Easy
23	Swap Nodes in Pairs	C++	11/6/2014	Medium
24	Remove Duplicates from Sorted Array	C++	11/7/2014	Easy
25	Sort Colors	C++	11/8/2014	Medium
26	Merge Sorted Array	C++	11/9/2014	Easy
27	Symmetric Tree	C++	11/10/2014	Easy
28	Gray Code	C++	11/11/2014	Medium
29	Unique Paths	C++	11/12/2014	Medium
30	Plus One	C++	11/13/2014	Easy
31	Generate Parentheses	C++	11/14/2014	Medium
32	Pascal's Triangle	C++	11/15/2014	Easy
33	Container With Most Water	C++	11/16/2014	Medium
34	Permutations	C++	11/17/2014	Medium
35	Rotate Image	C++	11/18/2014	Medium
36	Search a 2D Matrix	C++	11/19/2014	Medium
37	Find Minimum in Rotated Sorted Array	C++	11/20/2014	Medium
38	Minimum Path Sum	C++	11/21/2014	Medium
39	Best Time to Buy and Sell Stock	C++	11/22/2014	Medium
40	Binary Tree Level Order Traversal II	C++	11/23/2014	Easy
41	Search in Rotated Sorted Array II	C++	11/24/2014	Medium
42	Binary Tree Postorder Traversal	C++	11/25/2014	Hard
43	Linked List Cycle II	C++	11/26/2014	Medium
44	Set Matrix Zeroes	C++	11/27/2014	Medium
45	Spiral Matrix II	C++	11/28/2014	Medium
46	Remove Duplicates from Sorted Array II	C++	11/29/2014	Medium
47	Populating Next Right Pointers in Each Node II	C++	11/30/2014	Hard
48	Binary Tree Level Order Traversal	C++	12/1/2014	Easy
49	Path Sum	C++	12/2/2014	Easy
50	Pascal's Triangle II	C++	12/3/2014	Easy
51	Combinations	C++	12/4/2014	Medium
52	Sum Root to Leaf Numbers	C++	12/5/2014	Medium
53	Remove Nth Node from End of List	C++	12/6/2014	Easy
54	Minimum Depth of Binary Tree	C++	12/7/2014	Easy
55	Length of Last Word	C++	12/8/2014	Easy
56	Trapping Rain Water	C++	12/9/2014	Hard
57	Palindrome Number	C++	12/10/2014	Easy
58	Search in Rotated Sorted Array	C++	12/11/2014	Hard
59	Valid Parentheses	C++	12/12/2014	Easy
60	Flatten Binary Tree to Linked List	C++	12/13/2014	Medium
61	Longest Consecutive Sequence	C++	12/14/2014	Hard
62	Unique Paths II	C++	12/15/2014	Medium
63	Subsets	C++	12/16/2014	Medium
64	Valid Sudoku	C++	12/17/2014	Easy
65	Unique Binary Search Trees II	C++	12/18/2014	Medium
66	Convert Sorted List to Binary Search Tree	C++	12/19/2014	Medium
67	Search for a Range	C++	12/20/2014	Medium
68	Jump Game	C++	12/21/2014	Medium
69	Count and Say	C++	12/22/2014	Easy
70	Longest Common Prefix	C++	12/23/2014	Easy
71	Subsets II	C++	12/24/2014	Medium
72	Partition List	C++	12/25/2014	Medium
73	3Sum Closest	C++	12/26/2014	Medium
74	Path Sum II	C++	12/27/2014	Medium
75	Combination Sum	C++	12/28/2014	Medium
76	Triangle	C++	12/29/2014	Medium
77	Construct Binary Tree from Inorder and Postorder Traversal	C++	12/30/2014	Medium
78	Binary Tree Zigzag Level Order Traversal	C++	12/31/2014	Medium
79	Construct Binary Tree from Preorder and Inorder Traversal	C++	1/1/2015	Medium
80	Letter Combinations of a Phone Number	C++	1/2/2015	Medium
81	Reverse Linked List II	C++	1/3/2015	Medium
82	Pow(x, n)	C++	1/4/2015	Medium
83	N-Queens	C++	1/5/2015	Hard
84	Gas Station	C++	1/6/2015	Medium
85	Palindrome Partitioning	C++	1/7/2015	Medium
86	Validate Binary Search Tree	C++	1/8/2015	Medium
87	Add Binary	C++	1/9/2015	Easy
88	Edit Distance	C++	1/10/2015	Hard
89	Next Permutation	C++	1/11/2015	Medium
90	Insertion Sort List	C++	1/12/2015	Medium
91	Reverse Nodes in k-Group	C++	1/13/2015	Hard
92	Distinct Subsequences	C++	1/14/2015	Hard
93	Permutations II	C++	1/15/2015	Hard
94	Remove Duplicates from Sorted List II	C++	1/16/2015	Medium
95	Jump Game II	C++	1/17/2015	Hard
96	Combination Sum II	C++	1/18/2015	Medium
97	Anagrams	C++	1/19/2015	Medium
98	Recover Binary Search Tree	C++	1/20/2015	Hard
99	ZigZag Conversion	C++	1/21/2015	Easy
100	Copy List with Random Pointer	C++	1/22/2015	Hard
101	Clone Graph	C++	1/23/2015	Medium
102	Add Two Numbers	C++	1/24/2015	Medium
103	Scramble String	C++	1/25/2015	Hard
104	Valid Palindrome	C++	1/26/2015	Easy
105	First Missing Positive	C++	1/27/2015	Hard
106	Best Time to Buy and Sell Stock III	C++	1/28/2015	Hard
107	Sqrt(x)	C++	1/29/2015	Medium
108	Permutation Sequence	C++	1/30/2015	Medium
109	Longest Substring Without Repeating Characters	C++	1/31/2015	Medium
110	Rotate List	C++	2/1/2015	Medium
111	Implement strStr()	C++	2/2/2015	Easy
112	4Sum	C++	2/3/2015	Medium
113	Maximal Rectangle	C++	2/4/2015	Hard
114	Largest Rectangle in Histogram	C++	2/5/2015	Hard
115	Merge k Sorted Lists	C++	2/6/2015	Hard
116	Word Break	C++	2/7/2015	Medium
117	Merge Intervals	C++	2/8/2015	Hard
118	Sudoku Solver	C++	2/9/2015	Hard
119	Longest Palindromic Substring	C++	2/10/2015	Medium
120	Insert Interval	C++	2/11/2015	Hard
121	Spiral Matrix	C++	2/12/2015	Medium
122	Sort List	C++	2/13/2015	Medium
123	Restore IP Addresses	C++	2/14/2015	Medium
124	Multiply Strings	C++	2/15/2015	Medium
125	Reorder List	C++	2/16/2015	Medium
126	Binary Tree Maximum Path Sum	C++	2/17/2015	Hard
127	Regular Expression Matching	C++	2/18/2015	Hard
128	Simplify Path	C++	2/19/2015	Medium
129	Word Search	C++	2/20/2015	Medium
130	Evaluate Reverse Polish Notation	C++	2/21/2015	Medium
131	Longest Valid Parentheses	C++	2/22/2015	Hard
132	Interleaving String	C++	2/23/2015	Hard
133	Candy	C++	2/24/2015	Hard
134	Find Minimum in Rotated Sorted Array II	C++	2/25/2015	Hard
135	Word Ladder	C++	2/26/2015	Medium
136	Two Sum	C++	2/27/2015	Medium
137	Palindrome Partitioning II	C++	2/28/2015	Hard
138	Minimum Window Substring	C++	3/1/2015	Hard
139	Substring with Concatenation of All Words	C++	3/2/2015	Hard
140	Median of Two Sorted Arrays	C++	3/3/2015	Hard
141	3Sum	C++	3/4/2015	Medium
142	Divide Two Integers	C++	3/5/2015	Medium
143	Word Break II	C++	3/6/2015	Hard
144	Decode Ways	C++	3/7/2015	Medium
145	Maximum Product Subarray	C++	3/8/2015	Medium
146	String to Integer (atoi)	C++	3/9/2015	Easy
147	Wildcard Matching	C++	3/10/2015	Hard
148	Surrounded Regions	C++	3/11/2015	Medium
149	Reverse Words in a String	C++	3/12/2015	Medium
150	LRU Cache	C++	3/13/2015	Hard
151	Text Justification	C++	3/14/2015	Hard
152	Word Ladder II	C++	3/15/2015	Hard
153	Valid Number	C++	3/16/2015	Hard
154	Max Points on a Line	C++	3/17/2015	Hard

Name		Name	Last commit message	Last commit date
Latest commit History 260 Commits
001. Single Number		001. Single Number
002. Maximum Depth of Binary Tree		002. Maximum Depth of Binary Tree
003. Same Tree		003. Same Tree
004. Reverse Integer		004. Reverse Integer
005. Best Time to Buy and Sell Stock II		005. Best Time to Buy and Sell Stock II
006. Unique Binary Search Trees		006. Unique Binary Search Trees
007. Linked List Cycle		007. Linked List Cycle
008. Binary Tree Inorder Traversal		008. Binary Tree Inorder Traversal
009. Binary Tree Preorder Traversal		009. Binary Tree Preorder Traversal
010. Populating Next Right Pointers in Each Node		010. Populating Next Right Pointers in Each Node
011. Search Insert Position		011. Search Insert Position
012. Remove Duplicates from Sorted List		012. Remove Duplicates from Sorted List
013. Climbing Stairs		013. Climbing Stairs
014. Maximum Subarray		014. Maximum Subarray
015. N-Queens II		015. N-Queens II
016. Roman to Integer		016. Roman to Integer
017. Integer to Roman		017. Integer to Roman
018. Single Number II		018. Single Number II
019. Merge Two Sorted Lists		019. Merge Two Sorted Lists
020. Remove Element		020. Remove Element
021. Convert Sorted Array to Binary Search Tree		021. Convert Sorted Array to Binary Search Tree
022. Balanced Binary Tree		022. Balanced Binary Tree
023. Swap Nodes in Pairs		023. Swap Nodes in Pairs
024. Remove Duplicates from Sorted Array		024. Remove Duplicates from Sorted Array
025. Sort Colors		025. Sort Colors
026. Merge Sorted Array		026. Merge Sorted Array
027. Symmetric Tree		027. Symmetric Tree
028. Gray Code		028. Gray Code
029. Unique Paths		029. Unique Paths
030. Plus One		030. Plus One
031. Generate Parentheses		031. Generate Parentheses
032. Pascal's Triangle		032. Pascal's Triangle
033. Container With Most Water		033. Container With Most Water
034. Permutations		034. Permutations
035. Rotate Image		035. Rotate Image
036. Search a 2D Matrix		036. Search a 2D Matrix
037. Find Minimum in Rotated Sorted Array		037. Find Minimum in Rotated Sorted Array
038. Minimum Path Sum		038. Minimum Path Sum
039. Best Time to Buy and Sell Stock		039. Best Time to Buy and Sell Stock
040. Binary Tree Level Order Traversal II		040. Binary Tree Level Order Traversal II
041. Search in Rotated Sorted Array II		041. Search in Rotated Sorted Array II
042. Binary Tree Postorder Traversal		042. Binary Tree Postorder Traversal
043. Linked List Cycle II		043. Linked List Cycle II
044. Set Matrix Zeroes		044. Set Matrix Zeroes
045. Spiral Matrix II		045. Spiral Matrix II
046. Remove Duplicates from Sorted Array II		046. Remove Duplicates from Sorted Array II
047. Populating Next Right Pointers in Each Node II		047. Populating Next Right Pointers in Each Node II
048. Binary Tree Level Order Traversal		048. Binary Tree Level Order Traversal
049. Path Sum		049. Path Sum
050. Pascal's Triangle II		050. Pascal's Triangle II
051. Combinations		051. Combinations
052. Sum Root to Leaf Numbers		052. Sum Root to Leaf Numbers
053. Remove Nth Node from End of List		053. Remove Nth Node from End of List
054. Minimum Depth of Binary Tree		054. Minimum Depth of Binary Tree
055. Length of Last Word		055. Length of Last Word
056. Trapping Rain Water		056. Trapping Rain Water
057. Palindrome Number		057. Palindrome Number
058. Search in Rotated Sorted Array		058. Search in Rotated Sorted Array
059. Valid Parentheses		059. Valid Parentheses
060. Flatten Binary Tree to Linked List		060. Flatten Binary Tree to Linked List
061. Longest Consecutive Sequence		061. Longest Consecutive Sequence
062. Unique Paths II		062. Unique Paths II
063. Subsets		063. Subsets
064. Valid Sudoku		064. Valid Sudoku
065. Unique Binary Search Trees II		065. Unique Binary Search Trees II
066. Convert Sorted List to Binary Search Tree		066. Convert Sorted List to Binary Search Tree
067. Search for a Range		067. Search for a Range
068. Jump Game		068. Jump Game
069. Count and Say		069. Count and Say
070. Longest Common Prefix		070. Longest Common Prefix
071. Subsets II		071. Subsets II
072. Partition List		072. Partition List
073. 3Sum Closest		073. 3Sum Closest
074. Path Sum II		074. Path Sum II
075. Combination Sum		075. Combination Sum
076. Triangle		076. Triangle
077. Construct Binary Tree from Inorder and Postorder Traversal		077. Construct Binary Tree from Inorder and Postorder Traversal
078. Binary Tree Zigzag Level Order Traversal		078. Binary Tree Zigzag Level Order Traversal
079. Construct Binary Tree from Preorder and Inorder Traversal		079. Construct Binary Tree from Preorder and Inorder Traversal
080. Letter Combinations of a Phone Number		080. Letter Combinations of a Phone Number
081. Reverse Linked List II		081. Reverse Linked List II
082. Pow(x, n)		082. Pow(x, n)
083. N-Queens		083. N-Queens
084. Gas Station		084. Gas Station
085. Palindrome Partitioning		085. Palindrome Partitioning
086. Validate Binary Search Tree		086. Validate Binary Search Tree
087. Add Binary		087. Add Binary
088. Edit Distance		088. Edit Distance
089. Next Permutation		089. Next Permutation
090. Insertion Sort List		090. Insertion Sort List
091. Reverse Nodes in k-Group		091. Reverse Nodes in k-Group
092. Distinct Subsequences		092. Distinct Subsequences
093. Permutations II		093. Permutations II
094. Remove Duplicates from Sorted List II		094. Remove Duplicates from Sorted List II
095. Jump Game II		095. Jump Game II
< 8000 a title="096. Combination Sum II" aria-label="096. Combination Sum II, (Directory)" class="Link--primary" href="/Ctipsy/LeetCode/tree/4ebc3999e82d8fd884878ee41dbb01d452841b7c/096.%20Combination%20Sum%20II" data-discover="true">096. Combination Sum II		096. Combination Sum II
097. Anagrams		097. Anagrams
098. Recover Binary Search Tree		098. Recover Binary Search Tree
099. ZigZag Conversion		099. ZigZag Conversion
100. Copy List with Random Pointer		100. Copy List with Random Pointer

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