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Sunscreen POJ - 3614(贪心)
To avoid unsightly burns while tanning, each of the C (1 ≤ C ≤ 2500) cows must cover her hide with sunscreen when they're at the beach. Cow i has a mi ...
分类:其他好文   时间:2018-12-28 20:41:13    阅读次数:340
Best Cow Fences POJ - 2018
Farmer John's farm consists of a long row of N (1 <= N <= 100,000)fields. Each field contains a certain number of cows, 1 <= ncows <= 2000. FJ wants t ...
分类:其他好文   时间:2018-12-22 16:46:50    阅读次数:205
Lost connection to MySQL server at 'reading authorization packet', system error: 0_Mysql
1.大多数时候设置"set global connect_timeout=60;"是可以解决问题的。 我们可以通过执行“SHOWSTATUS LIKE 'aborted%'”,可以观察到 Variable_name Value Aborted_clients 6 Aborted_connects 1 ...
分类:数据库   时间:2018-12-13 13:16:00    阅读次数:440
POJ 2229 递推
Farmer John commanded his cows to search for different sets of numbers that sum to a given number. The cows use only numbers that are an integer power ...
分类:其他好文   时间:2018-12-10 14:23:27    阅读次数:212
MySQL报错解决方案:2013-Lost connection to MySQL server
今天上课的时候,在搭建完MySQL测试环境中出现的问题,整理如下: 问题描述:搭建完MySQL,用远程连接工具(Navicat)连接时报错: 2013-Lost connection to MySQL server at 'waiting for intial communication packe ...
分类:数据库   时间:2018-12-10 00:01:14    阅读次数:284
EXPEDI - Expedition 优先队列
题目描述 A group of cows grabbed a truck and ventured on an expedition deep into the jungle. Being rather poor drivers, the cows unfortunately managed to ...
分类:其他好文   时间:2018-12-08 11:26:16    阅读次数:163
文件管理小知识
命令:file,teee,cp,ln,mv,rm,mkdir,rename,stat,shred,readkink,lsof,touch1.命令查找顺序:别名->内部命令->外部命令2.修改文件自动颜色:/etc/DIR_COLORS文件3.只有ext系列文件格式有/lost+found目录,其它文件格式(大部分)没有。4.cd~:用户家目录cd~用户:指定的用户家目录,不需要知道其用
分类:其他好文   时间:2018-12-04 18:52:44    阅读次数:229
Launch Instance---source for openstack
If you want to create an instance that uses ephemeral storage, meaning the instance data is lost when the instance is deleted, then choose one of the ...
分类:其他好文   时间:2018-12-04 13:12:09    阅读次数:242
USACO 2003 Fall Orange Popular Cows /// tarjan缩点 oj22833
题目大意: n头牛,m个崇拜关系,并且崇拜具有传递性 如果a崇拜b,b崇拜c,则a崇拜c 求最后有几头牛被所有牛崇拜 强连通分量内任意两点都能互达 所以只要强联通分量内有一点是 那么其它点也都会是 按照崇拜关系 即a崇拜b就连一条a到b的边 tarjan求得所有强联通分量并染色 而把一个强联通分量缩 ...
分类:其他好文   时间:2018-11-24 14:32:09    阅读次数:164
P2742 【模板】二维凸包 / [USACO5.1]圈奶牛Fencing the Cows
二维凸包的板子 //minamoto include define rint register int define inf 0x3f3f3f3f using namespace std; const int N=10005; struct node{ double x,y; node(){} no ...
分类:其他好文   时间:2018-11-20 16:22:51    阅读次数:157
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