LeetCode Solution(持续更新，java>c++)

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作者：disappearedgod

文章出处：http://blog.csdn.net/disappearedgod/article/details/23621903

时间：2014-4-16

前言

这里是一个刷题汇总的表格，前面刷题一般用的是大家代码的总结，可能注释和版本会多一些。

Title里面分为两种超链接：

• 一种是题目超链接来自官网，
• 一种是解法的超链接来自本博客。

LeetCode的真谛在于：遇到不懂 => 查答案 => 自己理解写出来或背下来 => 过一段时间后第二遍重做

列表

图例

Diff

1(#FFFFFF)2(#FFFF33)3(#CC9933)4(#FFCC99)5(#99000)

Freq

1(#FFFFFF)2(#CCFFFF)3(#3333FF)4(#66CCCC)5(#330099)

No.1Title
Submit Date
Algorithm
Diff
Freq
1LeetCode-Two Sum & Solution
2014/4/13
Hash(Set)  & sort
2(5)
5(5)
148LeetCode-Sort List & Solution2014/4/15
List &List sort
-
-
2LeetCode -Add Two Numbers & Solution2014/4/16
List3(5)
4(5)
147LeetCode-Insertion Sort List & Solution
2014/4/16(&17)
List &List sort
-
-
19LeetCode-Remove Nth Node From End of List & Solution2014/4/17
List2(5)
3(5)
23Leetcode-Swap Nodes in Pairs & Solution2014/4/17
List3(5)
4(5)
24LeetCode-Reverse Nodes in k-Group & Solution2014/4/18
List2(5)
4(5)
56Leetcode-Rotate List & Solution
2014/4/22
List
4(5)
5(5)

Leetcode-Merge Two Sorted Lists & Solution
2014/5/6
Merge & List3(5)
3(5)
82Leetcode-Remove Duplicates from Sorted List II & Solution
2014/5/6
List
3(5)
3(5)
83Leetcode-Remove Duplicates from Sorted List & Solution
2014/5/9
List
1(5)
3(5)

Leetcode-Partition List & Solution
2014/8/19
List
(5)
(5)
92Leetcode-Reverse Linked List II & Solution
2014/4/18
List
3(5)
2(5)

Leetcode-Linked List Cycle II & Solution
2014/8/19
List

(5)

Leetcode-Linked List Cycle & Solution
2014/8/19
List

(5)

Leetcode-Reorder List & Solution
2014/8/20List

(5)

LeetCode-LRU Cache &Solution
2014/8/18
List
(5)
125
LeetCode-Valid Palindrome&Solution
2014/4/23
Two Pointers & String
2(5)5(5)
88LeetCode-Merge Sorted Array&Solution
2014/4/23
List2(5)5(5)
8LeetCode-String to Integer (atoi)&Solution
2014/4/24
string & Regular Expression2(5)
5(5)
98LeetCode-Validate Binary Search Tree &Solution
2014/5/19
Tree
3(5)5(5)

LeetCode-Binary Tree Level Order Traversal &Solution2014/8/28Tree

(5)
129LeetCode-Sum Root to Leaf Numbers &Solution
2014/5/24
Tree & DFS
2(5)4(5)

LeetCode-Convert Sorted Array to Binary Search Tree &Solution
2014/6/5Tree & Sort Array2(5)3(5)
112LeetCode-Path Sum &Solution
2014/5/23
Tree1(5)3(5)
116LeetCode-Populating Next Right Pointers in Each Node &Solution
2014/6/3
Tree
3(5)3(5)

LeetCode-Populating Next Right Pointers in Each Node II &Solution
2014/8/29
Tree

(5)

LeetCode-Flatten Binary Tree to Linked List &Solution
2014/6/6Tree & list
(5)

LeetCode-Binary Tree Zigzag Level Order Traversal & Solution
2014/5/26
Tree
(5)

LeetCode-Construct Binary Tree from Preorder and Inorder Tree & Solution

Tree

(5)

LeetCode-Construct Binary Tree from Inorder and Postorder Tree & Solution

Tree

(5)

LeetCode-Recover Binary Search Tree & Solution

Tree

(5)
101LeetCode-Symmetric Tree &Solution
2014/5/14
Tree

(5)
110LeetCode-Balanced Binary Tree & Solution
2014/5/20
Tree

(5)

LeetCode-Path Sum II &Solution

Tree

(5)

LeetCode-Binary Tree Inorder Traversal &Solution
2014/8/30
Tree

(5)

LeetCode-Binary Tree Maximum Path Sum &Solution

Tree

(5)

LeetCode-Binary Tree Level Order Traversal II &Solution
2014/5/26Tree

(5)
100LeetCode-Same Tree &Solution
2014/5/14
Tree

(5)







LeetCode-Minimum Depth of Binary Tree &Solution
2014/6/7Tree & DFS
(5)

LeetCode-Unique Binary Search Trees II &Solution
2014/6/13
Tree & DP

(5)

LeetCode-Unique Binary Search Trees &Solution
2014/6/5Tree & DP
(5)

LeetCode-Binary Tree Preorder Traversal & Solution
2014/5/23
Tree

(5)

LeetCode-Binary Tree Postorder Traversal & Solution
2014/6/4
Tree & Solution
(5)

LeetCode-Longest Valid Parentheses &Solution
2014/6/11
String & DP
(5)

LeetCode-Wildcard Matching & Solution
2014-6-10
DP & Greedy & String

(5)

LeetCode-Maximum Subarray & Solution
2014/6/12
DP

(5)

LeetCode-Unique Paths & Solution
2014/6/12
DP

(5)

LeetCode-Unique Paths II & Solution
2014/6/12
DP

(5)

LeetCode-Minimum Path Sum & Solution
2014/6/12
DP

(5)

LeetCode-Climbing Stairs & Solution
2014/6/12
DP

(5)

LeetCode-Edit Distance & Solution
2014/6/18
DP & String

(5)

LeetCode-Maximal Rectangle & Solution

DP

(5)

LeetCode-Scramble String & Solution

DP & String

(5)

LeetCode-Decode Ways & Solution

DP

(5)

LeetCode-Unique Binary Search Trees II &Solution
2014/6/13
Tree & DP

(5)

LeetCode-Unique Binary Search Trees &Solution
2014/6/5
Tree & DP

(5)

LeetCode-Interleaving String &Solution
2014/9/1DP & String

(5)

LeetCode-Distinct Subsequences & Solution
2014/8/31DP & String

(5)

LeetCode-Triangle &Solution
2014/9/1
DP & Tree

(5)

LeetCode-Best Time to Buy and Sell Stock & Solution

DP

(5)

LeetCode-Best Time to Buy and Sell Stock III & Solution

DP

(5)

LeetCode-Palindrome Partitioning II & Solution

DP & String

(5)

LeetCode-Best Time to Buy and Sell Stock II & Solution
Greedy
(5)

LeetCode-Wildcard Matching & Solution2014-6-10
Greedy

(5)

LeetCode-String to Integer (atoi)&Solution2014/4/24
[String]
(5)

LeetCode-Longest Valid Parentheses &Solution2014/6/11
[String]

(5)

LeetCode-Valid Parentheses & Solution
2014/8/21[String]

(5)

LeetCode-Generate Parentheses & Solution

[String]

(5)

LeetCode-Valid Palindrome&Solution
[String]

(5)

LeetCode-Implement strStr() & Solution
2014/8/22
[String] & KMP

(5)

LeetCode-Palindrome PartitioningI & II & Solution

[String]

(5)

LeetCode-Decode Ways & Solution

[String]

(5)

LeetCode-Add Binary & Solution
2014/9/14
[String]

(5)

LeetCode-Anagrams &Solution
2014/9/1[String]

(5)

LeetCode-Letter Combinations of a Phone Number &Solution
2014/10/4[String]

(5)

LeetCode-Restore IP Addresses & Solution

[String]

(5)

LeetCode-Edit Distance & Solution
2014/6/18
[String] & DP

(5)

LeetCode-Palindrome Partitioning II & Solution

[String]

(5)

LeetCode-Regular Expression Matching & Solution

[String]

(5)

LeetCode-Wildcard Matching & Solution
2014-6-10
[String]

(5)

LeetCode-Multiply Strings & Solution

[String]

(5)

LeetCode-Distinct Subsequences & Solution
2014/8/31
DP & [String]

(5)

LeetCode-Scramble String & Solution

DP & String]

(5)

LeetCode-Interleaving String &Solution
2014/9/1
DP & [String]

(5)

LeetCode-Longest Substring Without Repeating Characters &Solution

[String]

(5)

LeetCode-Valid Number & Solution





LeetCode-Count and Say & Solution
2014/9/1
[String]

(5)

LeetCode-Minimum Window Substring & Solution

[String]

(5)

LeetCode-Longest Palindromic SubString &Solution

[String]

(5)

LeetCode-Text Justification & Solution

[String]

(5)

LeetCode-Valid Number & Solution

[String]

(5)

LeetCode-Simplify Path & Solution
2014/9/18
[String]

(5)

LeetCode-Substring with Concatenation of All Words & Solution

[String]

(5)

LeetCode-ZigZag Conversion & Solution

[String]

(5)

LeetCode-Longest Common Prefix & Solution

[String]

(5)

LeetCode-Length of Last Word &Solution
2014/8/27
[String]

(5)

LeetCode-N-Queens &Solution
2014/9/10


(5)

LeetCode-Remove Duplicates from Sorted Array &Solution
2014/9/12


(5)

LeetCode-Gray Code &Solution
2014/9/12


(5)

LeetCode-Sort Colors &Solution
2014/9/12


(5)

LeetCode-Pascal's Triangle &Solution
2014/9/12


(5)

LeetCode-Search in Rotated Sorted Array &Solution
2014/9/12


(5)

LeetCode-Plus One &Solution
2014/9/13


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LeetCode-



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LeetCode-Convert Sorted List to Binary Search Tree & Solution
2014/8/19List、Tree、Sorted
(5)





(5)

LeetCode-Permutation Sequence &Solution
2014/8/13permutation
(5)

LeetCode-Next Permutation & Solution



(5)

LeetCode-Permutations &Solution
2014/9/28permutation

(5)

LeetCode-Permutations II & Solution



(5)

LeetCode-Search a 2D Matrix &Solution
2014/6/5
Bi-Search
(5)

题目列表（before 2014/4/15）