so what？
by fanypcd @ 2021-05-25 20:41:20
@[2009ZJY](/user/303025) NOIP 原题啊……放过它吧qwq
by Mysterious_Mini @ 2021-05-25 20:46:16
@[Mysterious_Mini](/user/476150) 可以加一个大数据啊
by zjyqwq @ 2021-05-25 20:47:18
[在这](https://www.luogu.com.cn/problem/P6033)
by 过_路_人 @ 2021-05-25 20:51:23