Given an array of integers, every element
appears twice except for one. Find that single one. Note: Your algorithm should
have a linear runtime comple...
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其他好文 时间:
2014-05-23 07:22:48
阅读次数:
241
向上遍历DOM树:.parent().parents().parentsUntil()向下遍历DOM树:.children().find()DOM树水平遍历:.siblings().next().nextAll().nextUntil().prev().prevAll().preUntil()三个最...
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Web程序 时间:
2014-05-23 07:05:00
阅读次数:
286
今天写程序,遇到了crash,在界面初始化时不会有,想切换到别的tab页就报错了。主要内容如下:Cannot
find an outgoing row head for incoming head UIImageView:0x156caec0.Width{id:
103}, which should...
分类:
移动开发 时间:
2014-05-23 06:48:54
阅读次数:
280
In bash shell, when you use a dollar sign
followed by a variable name, shell expands the variable with its value. This
feature of shell is called para...
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其他好文 时间:
2014-05-21 18:32:32
阅读次数:
332
Say you have an array for which theithelement
is the price of a given stock on dayi.Design an algorithm to find the maximum
profit. You may complete a...
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其他好文 时间:
2014-05-21 17:27:55
阅读次数:
252
【题目】
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 be used once in the combination.
Note:
All numbers (including target) will be ...
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其他好文 时间:
2014-05-21 15:55:25
阅读次数:
259
【题目】
Given a set of candidate numbers (C) and a target number (T), find all unique combinations in C where the candidate numbers sums to T.
The same repeated number may be chosen from C unlimited number of times.
Note:
All numbers (including target) w...
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其他好文 时间:
2014-05-21 15:21:28
阅读次数:
292
今天在腾讯云的服务器被攻击后,apache启动报错,查找原因发现是磁盘空间不够no space left on device,
诡异的是df命令磁盘占用仅55%
继续查找原因,发现是iNode已满,即没有索引空间
这就好办了,首先定位哪个目录占用iNode最多,命令如下:
find */ ! -type l | cut -...
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系统相关 时间:
2014-05-21 14:46:09
阅读次数:
363
Eclipse 报 "The builder launch configuration could not be found" 错误的解决办法...
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系统相关 时间:
2014-05-21 14:41:33
阅读次数:
295
利用Union Find的方法查找图中是否有环。
在于构建一个图数据结构,和一般图的数据结构不同的是这个图是记录了边的图,并在查找过程中不断把边连接起来,形成一个回路。
原文地址:
http://www.geeksforgeeks.org/union-find/
#pragma once
#include
#include
#include
#include
class Un...
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其他好文 时间:
2014-05-21 14:12:15
阅读次数:
287