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POJ - 3249 Test for Job (DAG+topsort)
Description Mr.Dog was fired by his company. In order to support his family, he must find a new job as soon as possible. Nowadays, It's hard to have a job, since there are swelling numbers of the...
分类:其他好文   时间:2014-07-27 23:57:39    阅读次数:630
hduj 1097 A hard puzzle
A hard puzzle Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 28814    Accepted Submission(s): 10315 Problem Description lcy gives a ha...
分类:其他好文   时间:2014-07-27 11:33:52    阅读次数:228
glance 命令行上传 image
制作一个系统镜像上传到/mnt/p_w_picpath目录下: centos6.5.img$glancep_w_picpath-create–namecentos6.5–disk-format=qcow2–container-format=bare–is-public=True–file=/mnt/p_w_picpath/centos6.5.img 解释: –nameNAME上传完镜像在openstack中显示的名称..
分类:其他好文   时间:2014-07-26 03:09:27    阅读次数:636
Ubuntu wifi 启用
今天略微合拢了一下笔记本,然后Ubuntu unity死掉了,Ctrl-Alt-1进入terminal, 登录后重新启动系统,发现wif不能用了。上网查了一个命令,可以检查软硬件禁用的状况:root@dean-Latitude-3330:~# rfkill list 1: phy0: Wireless LAN Soft blocked: no Hard blocked: yes 2: dell...
分类:其他好文   时间:2014-07-26 01:59:26    阅读次数:251
为Xen虚拟机扩容根文件系统(LVM)
===== 为Xen虚拟机扩容根文件系统(LVM) =====1. 增加1个4G的映像文件# dd if=/dev/zero of=data.img bs=4k seek=1024k count=12. 更改虚拟机配置:disk = [ "tap:aio:/xen_images/xen_centos...
分类:其他好文   时间:2014-07-25 16:40:41    阅读次数:536
about Q&A in installing linux[centos6,7]
keywords:grub1,grub2,gnome,kde,question describe:install centos7 by U disk,出现问题,解决办法:install centos7test this media &install centos7troubles shooting当...
分类:系统相关   时间:2014-07-25 13:55:01    阅读次数:337
openstack快速更改虚拟机配置
在使用novaresize去修改虚拟机的配置的时候,实际调用的是migrate的代码。在默认情况下,执行resize的时候,首先会进行磁盘disk镜像和后端镜像进行一个合并成raw,然后转换成qcow2的过程。而且会进行迁移的动作。整个过程会相当的消耗时间,而且我们一般只需要修改cpu和mem的大..
分类:其他好文   时间:2014-07-25 11:37:52    阅读次数:255
2014百度之星资格赛4题
因为都是中文题,题意就不写了。A、Energy Conversion这题先推断一下能量能否添加,然后再依据添加这个公式去求出一个等比公式,就能够直接求出须要添加几次了B、Disk Schedule首先轨道转移和读取数据时间肯定是要花进去的,剩下就是看转的那部分时间,从0,0開始,回到0,0,中间经过...
分类:其他好文   时间:2014-07-24 14:39:05    阅读次数:247
redis研究笔记
一. redis Redis is an in-memory database that persists on disk. The data model is key-value, but many different kind of values are supported: Strings, Lists, Sets, Sorted Sets, Hashes   http...
分类:其他好文   时间:2014-07-24 10:32:58    阅读次数:223
LeetCode "ZigZag Conversion"
Nothing to hard to think. Just take care of boundary conditions.class Solution {public: string convert(string s, int nRows) { if(s.empty() |...
分类:其他好文   时间:2014-07-23 15:04:36    阅读次数:227
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