Problem Description:Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.For example,"A man, a...
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其他好文 时间：
2014-07-07 16:03:32
阅读次数：
168
Problem Description:Given a stringsand a dictionary of wordsdict, determine ifscan be segmented into a space-separated sequence of one or more diction...
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其他好文 时间：
2014-07-07 16:02:11
阅读次数：
219
Problem Description:Given a binary tree, determine if it is height-balanced.For this problem, a height-balanced binary tree is defined as a binary tre...
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其他好文 时间：
2014-07-07 13:27:35
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207
不戚戚于贫贱，不汲汲于富贵 ---五柳先生Given a stringsand a dictionary of wordsdict, determine ifscan be segmented into a space-separated sequence of one or more dict.....
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其他好文 时间：
2014-07-03 20:21:27
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225
Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given sum.Fo...
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其他好文 时间：
2014-07-02 22:34:44
阅读次数：
318
Given an encoded message containing digits, determine the total number of ways to decode it.
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其他好文 时间：
2014-07-02 14:47:02
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217
题目
Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.
For example,
"A man, a plan, a canal: Panama" is a palindrome.
"race a car" i...
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其他好文 时间：
2014-07-02 09:49:04
阅读次数：
271
Given a stringsand a dictionary of wordsdict, determine ifscan be segmented into a space-separated sequence of one or more dictionary words.For exampl...
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其他好文 时间：
2014-07-01 23:43:03
阅读次数：
293
Valid Parentheses：Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid.The brackets m...
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其他好文 时间：
2014-07-01 21:24:05
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180
题目
Given a linked list, determine if it has a cycle in it.
Follow up:
Can you solve it without using extra space?
方法
/**
* Definition for singly-linked list.
* class ListNode {
...
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其他好文 时间：
2014-07-01 11:31:40
阅读次数：
178
