Phoebe815

2014年12月2日

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posted @ 2014-12-02 12:43 Phoebe815 阅读(121) 评论(0) 推荐(0) 编辑

摘要： Given an unsorted array of integers, find the length of the longest consecutive elements sequence.For example,Given[100, 4, 200, 1, 3, 2],The longest ... 阅读全文

posted @ 2014-12-02 12:06 Phoebe815 阅读(114) 评论(0) 推荐(0) 编辑

[Leetcode] Recover Binary Search Tree

摘要： Two elements of a binary search tree (BST) are swapped by mistake.Recover the tree without changing its structure.Note:A solution using O(n) space is ... 阅读全文

posted @ 2014-12-02 07:18 Phoebe815 阅读(172) 评论(0) 推荐(0) 编辑

2014年12月1日

[Leetcode] First Missing Positive

摘要： Given an unsorted integer array, find the first missing positive integer.For example,Given[1,2,0]return3,and[3,4,-1,1]return2.Your algorithm should ru... 阅读全文

posted @ 2014-12-01 17:16 Phoebe815 阅读(134) 评论(0) 推荐(0) 编辑

2014年11月30日

[Leetcode] Binary Tree Maximum Path Sum

摘要： Given a binary tree, find the maximum path sum.The path may start and end at any node in the tree.For example:Given the below binary tree, 1 ... 阅读全文

posted @ 2014-11-30 16:24 Phoebe815 阅读(140) 评论(0) 推荐(0) 编辑

[Leetcode] Set Matrix Zeroes

摘要： Given amxnmatrix, if an element is 0, set its entire row and column to 0. Do it in place.click to show follow up.Follow up:Did you use extra space?A s... 阅读全文

posted @ 2014-11-30 09:24 Phoebe815 阅读(148) 评论(0) 推荐(0) 编辑

[Leetcode] Longest Valid Parentheses

摘要： Given a string containing just the characters'('and')', find the length of the longest valid (well-formed) parentheses substring.For"(()", the longest... 阅读全文

posted @ 2014-11-30 08:41 Phoebe815 阅读(162) 评论(0) 推荐(0) 编辑

[Leetcode] Interleaving String

摘要： Givens1,s2,s3, find whethers3is formed by the interleaving ofs1ands2.For example,Given:s1="aabcc",s2="dbbca",Whens3="aadbbcbcac", return true.Whens3="... 阅读全文

posted @ 2014-11-30 03:47 Phoebe815 阅读(186) 评论(0) 推荐(0) 编辑

2014年11月27日

[Leetcode] Surrounded Regions

摘要： Given a 2D board containing'X'and'O', capture all regions surrounded by'X'.A region is captured by flipping all'O's into'X's in that surrounded region... 阅读全文

posted @ 2014-11-27 07:56 Phoebe815 阅读(139) 评论(0) 推荐(0) 编辑

2014年11月24日

[Leetcode] Candy

摘要： There areNchildren standing in a line. Each child is assigned a rating value.You are giving candies to these children subjected to the following requi... 阅读全文

posted @ 2014-11-24 14:56 Phoebe815 阅读(215) 评论(0) 推荐(0) 编辑

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