【136-Single Number（只出现一次的数字）】【LeetCode-面试算法经典-Java实现】【所有题目目录索引】原题 Given an array of integers, every element appears twice except for one. Find that single one.
Note:
Your algorithm should have a...
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编程语言 时间：
2015-08-18 07:57:37
阅读次数：
233
【137-Single Number II（只出现一次的数字II）】【LeetCode-面试算法经典-Java实现】【所有题目目录索引】原题 Given an array of integers, every element appears three times except for one. Find that single one.
Note:
Your algorithm sh...
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编程语言 时间：
2015-08-18 07:56:07
阅读次数：
249
【138-Copy List with Random Pointer（拷贝有随机指针的单链表）】【LeetCode-面试算法经典-Java实现】【所有题目目录索引】原题 A linked list is given such that each node contains an additional random pointer which could point to any node in t...
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编程语言 时间：
2015-08-18 07:55:06
阅读次数：
164
【130-Surrounded Regions（环绕区域）】【LeetCode-面试算法经典-Java实现】【所有题目目录索引】原题 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'...
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编程语言 时间：
2015-08-15 06:45:16
阅读次数：
117
【129-Sum Root to Leaf Numbers（所有根到叶子结点组组成的数字相加）】【LeetCode-面试算法经典-Java实现】【所有题目目录索引】原题 Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number.
An example...
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编程语言 时间：
2015-08-15 06:44:54
阅读次数：
114
【134-Gas Station（加油站问题】【LeetCode-面试算法经典-Java实现】【所有题目目录索引】原题 There are N gas stations along a circular route, where the amount of gas at station i is gas[i].
You have a car with an unlimited gas tan...
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编程语言 时间：
2015-08-15 06:44:26
阅读次数：
147
【120-Triangle（三角形）】【LeetCode-面试算法经典-Java实现】【所有题目目录索引】原题 Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row below.
For example, giv...
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编程语言 时间：
2015-08-14 07:38:58
阅读次数：
283
【125-Valid Palindrome(回文字验证)】【LeetCode-面试算法经典-Java实现】【所有题目目录索引】原题 Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.
For example,
"A ma...
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编程语言 时间：
2015-08-14 07:38:55
阅读次数：
171
【121-Best Time to Buy and Sell Stock（最佳买卖股票的时间）】【LeetCode-面试算法经典-Java实现】【所有题目目录索引】原题 Say you have an array for which the ith element is the price of a given stock on day i.
If you were only permitt...
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编程语言 时间：
2015-08-14 07:37:48
阅读次数：
196
【117-Populating Next Right Pointers in Each Node（二叉树链接右指针II）】【LeetCode-面试算法经典-Java实现】【所有题目目录索引】原题 Follow up for problem “Populating Next Right Pointers in Each Node”.
What if the given tree could b...
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编程语言 时间：
2015-08-13 07:47:20
阅读次数：
156
