爬了，但是UKE
by 1saunoya @ 2019-12-15 20:55:59
@[Isaunoya](/user/96580) 我搜不到题
by 万弘 @ 2019-12-15 20:58:54
@[万弘](/user/73142)
https://www.luogu.com.cn/problem/CF1277A
???
by Itst @ 2019-12-15 21:04:12