@[liuhaodong2021](/user/602624) [这里](https://www.luogu.com.cn/problem/CF1850E#translate)
by Eason_cyx @ 2023-07-30 11:25:32
为什么要用繁体
by lwx20211103 @ 2023-07-30 11:25:35
繁體不行嗎？
by ___njr___ @ 2023-07-30 13:57:47