查看当前目录下的文件:find.-typef查看当前目录下的文件夹:find.-typed如果文件file1不为空:if[-sfile1];thenecho"file1不为空"fi#!/bin/shforfin`find./testdir-typef`;doif[-s$f];thenecho$fis...
分类:
系统相关 时间:
2014-07-22 23:09:14
阅读次数:
407
Single NumberGiven an array of integers, every
element appearstwiceexcept for one. Find that single one.Note:Your algorithm
should have a linear runti...
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其他好文 时间:
2014-07-22 23:07:14
阅读次数:
337
Given a binary tree, find its maximum depth.The
maximum depth is the number of nodes along the longest path from the root node
down to the farthest le...
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其他好文 时间:
2014-07-22 23:07:13
阅读次数:
379
//
查找满足指定条件的结果中的第一行$post=Post::model()->find($condition,$params);//
查找具有指定主键值的那一行$post=Post::model()->findByPk($postID,$condition,$params);//
查找具有指定属性...
分类:
数据库 时间:
2014-05-01 01:59:01
阅读次数:
411
Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the length is 3....
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其他好文 时间:
2014-04-29 13:47:20
阅读次数:
251
We sometimes got memory leak problem, and we need to find the leaked memory, Here is a useful tool from MS, UMDH, it is included in WinDBG install package.
Here is a introduction on how to UMDH to identify memory leak problems...
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其他好文 时间:
2014-04-29 13:38:21
阅读次数:
374
Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along its path.
Note: You can only move either down or right at...
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其他好文 时间:
2014-04-28 10:46:41
阅读次数:
311
题目描述
Cainiao is a university student who loves ACM contest very much. It is a festival for him once when he attends ACM Asia Regional Contest because he always can find some famous ACMers there.
C...
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其他好文 时间:
2014-04-28 10:33:40
阅读次数:
340
http://acm.hdu.edu.cn/showproblem.php?pid=1595
大致题意:
给一个图,让输出从中删除任意一条边后所得最短路径中最长的。。
思路:
直接枚举每条边想必是不行的。其实有些边是不需要枚举的,因为删除它们并不影响起点到终点的最短路。起作用的边都是未删边前的最短路径上的边,删除它们最短距离肯定增大,只需在这些最短距离中求最大的即可。
记录最短路...
分类:
Web程序 时间:
2014-04-28 10:24:42
阅读次数:
393
" checking for SSL headers... configure: error: Cannot find ssl headers"
原因是缺少openssl-devel,安装这个库就可以解决问题。
yum -y install openssl-devel...
分类:
其他好文 时间:
2014-04-27 21:32:05
阅读次数:
283