1.在目录树中移动. 程序运行时会以当前工作目录作为相对路径的起点, 可以使用chdir操作符改变当前目录:chdir "/etc" or die "Can't chdir to /etc:$!"; #因为这是一个相对操作系统的调用, 所以错误信息会返回到 $! 中. 由Perl程序启动的所有进.....
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其他好文 时间:
2015-06-22 17:46:26
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123
11995
I Can Guess the Data Structure!
There is a bag-like data structure, supporting two operations:
1 x Throw an element x into the bag.
2 Take out an element from the bag.
Given a sequence of ...
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其他好文 时间:
2015-06-22 16:32:53
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200
Description
The Pizazz Pizzeria prides itself in delivering pizzas to its customers as fast as possible. Unfortunately, due to cutbacks, they can afford to hire only one driver to do the deliveries...
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其他好文 时间:
2015-06-22 15:07:09
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143
Functions can also be called using keyword arguments of the form kwarg=value. For instance, the following function:def parrot(voltage, state='a stiff'...
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其他好文 时间:
2015-06-22 14:53:31
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107
Given a binary tree, imagine yourself standing on the right side of it, return the values of the nodes you can see ordered from top to bottom.
For example:
Given the following binary tree,
1...
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其他好文 时间:
2015-06-22 11:13:01
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127
主体程序位置在nmap.cc line:1640学习要点:程序在1650行,新建一个主机的单例对象,#ifndef NOLUA
/* Only NSE scripts can add targets */
NewTargets *new_targets = NULL;
/* Pre-Scan and Post-Scan script results datastructure */...
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其他好文 时间:
2015-06-22 09:53:28
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329
题目连接http://acm.hdu.edu.cn/showproblem.php?pid=5272Dylans loves numbersDescriptionWho is Dylans?You can find his ID in UOJ and Codeforces.His another I...
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其他好文 时间:
2015-06-21 20:59:05
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139
Description:Given a linked list, determine if it has a cycle in it.Follow up:Can you solve it without using extra space?Code: 1 bool hasCycle(ListNo.....
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其他好文 时间:
2015-06-21 18:25:08
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116
注意求最短路的时候用Bfs。#include#includeusing namespace std;int w,h,ex,ey,sx,sy;int map[100][100],can[100][100];struct vid{ int x,y,step;}queue[5000];int za...
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其他好文 时间:
2015-06-21 17:02:25
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130
ubuntu for laptop系统在系统休眠后wakeup 之后,网络连接失败, 有线网络无法连接, 无线wifi无法连接, 只能重启后才能恢复, 此时可以采用以下方法处理:1. 在/etc/pm/sleep.d/目录下创建network-manager-resume.2. 贴上以下命令并保存....
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Web程序 时间:
2015-06-21 11:46:52
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274