@[Go_Helloworld](/space/show?uid=110781) 没测样例吧
by wxy_god @ 2018-09-24 11:56:18
@[我是一个垃圾](/space/show?uid=89396) hehe
by Free_S @ 2018-09-24 20:16:20
[已经有第二个了](https://www.luogu.org/discuss/show?postid=91127)
by Liveddd @ 2018-12-25 17:27:07
ta中间还错了
by Liveddd @ 2018-12-25 17:27:30