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 @ 2014-07-19 17:52
SunshineAtNoon
阅读(174)
评论(0)
推荐(0)
摘要：
Given a string containing just the characters'(',')','{','}','['and']', determine if the input string is valid.The brackets must close in the correct ... 阅读全文
posted @ 2014-07-19 17:09
SunshineAtNoon
阅读(152)
评论(0)
推荐(0)
摘要：
Given a binary tree, determine if it is a valid binary search tree (BST).Assume a BST is defined as follows:The left subtree of a node contains only n... 阅读全文
posted @ 2014-07-19 16:42
SunshineAtNoon
阅读(349)
评论(0)
推荐(0)
摘要：
Given a binary tree, return thezigzag level ordertraversal of its nodes' values. (ie, from left to right, then right to left for the next level and al... 阅读全文
posted @ 2014-07-19 16:25
SunshineAtNoon
阅读(190)
评论(0)
推荐(0)
摘要：
Given preorder and inorder traversal of a tree, construct the binary tree.Note:You may assume that duplicates do not exist in the tree.类似http://www.cn... 阅读全文
posted @ 2014-07-19 15:26
SunshineAtNoon
阅读(283)
评论(0)
推荐(0)
摘要：
Given inorder and postorder traversal of a tree, construct the binary tree.Note:You may assume that duplicates do not exist in the tree.题解：如下图所示的一棵树： ... 阅读全文
posted @ 2014-07-19 14:38
SunshineAtNoon
阅读(260)
评论(0)
推荐(0)
摘要：
Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.For example,"A man, a plan, a canal: Pana... 阅读全文
posted @ 2014-07-19 13:49
SunshineAtNoon
阅读(182)
评论(0)
推荐(0)
摘要：
Given a strings, partitionssuch that every substring of the partition is a palindrome.Return all possible palindrome partitioning ofs.For example, giv... 阅读全文
posted @ 2014-07-19 11:33
SunshineAtNoon
阅读(182)
评论(0)
推荐(0)
摘要：
Clone an undirected graph. Each node in the graph contains alabeland a list of itsneighbors.OJ's undirected graph serialization:Nodes are labeled uniq... 阅读全文
posted @ 2014-07-19 11:07
SunshineAtNoon
阅读(201)
评论(0)
推荐(0)
摘要：
Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations:getandset.get(key)- Get the valu... 阅读全文
posted @ 2014-07-19 10:34
SunshineAtNoon
阅读(414)
评论(0)
推荐(0)
浙公网安备 33010602011771号