If you omit the loop condition it loops forever, so an infinite loop is compactly(简洁地:紧密地:细密地) expressed. package main func main() { for { } }…

Sightseeing tour Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 9276   Accepted: 3924 Description The city executive board in Lund wants to construct a sightseeing tour by bus in Lund, so that tourists can see every corner of the beauti…

Euler Tour Tree最大的优点就是可以方便的维护子树信息,这点LCT是做不到的.为什么要维护子树信息呢..?我们可以用来做fully dynamic connectivity(online). Euler Tour Tree 维护将树中的边u--v变成u->v,v->u后的Euler Tour. 换根: 因为Euler Tour是一个环,那么我们可以在任意一个k->u的地方切断,然后把这段东西接到最后去,这样就把u变成根了 Link: 先换根,然后添加u->v与v->…

Tour Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 4307   Accepted: 1894 Description John Doe, a skilled pilot, enjoys traveling. While on vacation, he rents a small plane and starts visiting beautiful places. To save money, John must…

题目描述: 1015. Jill's Tour Paths Constraints Time Limit: 1 secs, Memory Limit: 32 MB Description Every year, Jill takes a bicycle tour between two villages. There are different routes she can take between these villages, but she does have an upper limit…

nodejs一般是当成一条用户命令执行的,当用户断开客户连接,运用也就停了,很烦人.如何让nodejs应用当成服务,在后台执行呢? 最简单的办法: $ nohup node app.js & 但是,forever能做更多的事情,比如分别记录输出和错误日志,比如可以在js中作为api使用. $ sudo npm install forever -g #安装 $ forever start app.js #启动 $ forever stop app.js #关闭 $ forever start -l…

何为forever:forever可以看做是一个nodejs的守护进程,能够启动,停止,重启我们的app应用.官方的说明是说:A simple CLI tool for ensuring that a given script runs continuously (i.e. forever).一个用来持续(或者说永远)运行一个给定脚本的简单的命令行工具 Github地址:https://github.com/nodejitsu/forever forever用途:forever的用途就是帮我们更…

在LINUX中我们可以使用这种简单的方式让node.js在后台运行: nohup node your_app.js & forever可以让我们做得更好,并且可以跨平台的在windows和Linux下都能运行. forever的安装: npm install forever -g forever的用法: 使用forever启动守护进程: forever start your_app.js 关闭守护进程: forever stop your_app.js 重启守护进程:: forever rest…

Sightseeing tour Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 8859   Accepted: 3728 Description The city executive board in Lund wants to construct a sightseeing tour by bus in Lund, so that tourists can see every corner of the beauti…

supervisor 是开发环境用.或者用nodemon,node-dev 代替了supervisor 和 nodemon,它和coffeescript兼容最好. forever 管理多个站点,每个站访问量不大,不需要监控. pm2 网站访问量比较大,需要完整的监控界面.pm2 stop *不会释放端口,要pm2 kill杀进程才释放端口,pm2的稳定性还是不错的.…