单例模式目的：Ensure a class only has one instance, and provide a global point of access toit.保证一个类仅有一个实例，并提供一个访问它的全局访问点。C++实现在类中，定义一个私有静态成员对象；将构造函数也定义为私有的，保...
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其他好文 时间：
2014-07-27 10:25:12
阅读次数：
235
Problem StatementYou have a collection of music files with names formatted as “genre-artist-album-song” (quotes for clarity only), where genre, artist...
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其他好文 时间：
2014-07-27 10:03:42
阅读次数：
273
Compared with I version, the tree could be incomplete. The only difference is that, we connect current node's child to next non-childrenless' node's f...
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其他好文 时间：
2014-07-26 17:02:11
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316
Problem Description:
Given a collection of candidate numbers (C) and a target number (T), find all unique combinations in C where the candidate numbers
sums to T.
Each number in C may only b...
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其他好文 时间：
2014-07-26 15:24:02
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252
Say you have an array for which theithelement is the price of a given stock on dayi.If you were only permitted to complete at most one transaction (ie...
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其他好文 时间：
2014-07-26 14:30:11
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156
Problem Description
A while ago it was quite cumbersome to create a message for the Short Message Service (SMS) on a mobile phone. This was because you only have nine keys and the alphabet has more t...
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移动开发 时间：
2014-07-26 02:40:36
阅读次数：
332
Say you have an array for which the ith element is the price of a given stock on day i.If you were only permitted to complete at most one transaction ...
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其他好文 时间：
2014-07-26 01:23:26
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229
1、jQuery Object 和 原生的DOM对象之间有许多方法是不一样的，用jQuery的方法大部分情况下返回的是jQuery Object，但是jQuery也提供了一些方法可以很轻松的获取原生的DOM对象。先来看：获取jQuery Object之一，// Selecting only the ...
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Web程序 时间：
2014-07-26 00:43:16
阅读次数：
336
Given a string containing only digits, restore it by returning all possible valid IP address combinations.For example:Given"25525511135",return["255.2...
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其他好文 时间：
2014-07-26 00:05:16
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301
Valid PalindromeGiven a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.For example,"A man, a pla...
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其他好文 时间：
2014-07-25 23:52:10
阅读次数：
202
