ppip @ 2022-07-12 22:56:51
rt。https://www.luogu.com.cn/discuss/457484
欢迎大佬们提出意见 or 缩短代码 or 给出类似代码 :)
by WYXkk @ 2022-07-12 23:07:33
好神奇啊，我尝试理解一下
by Kak0 @ 2022-07-12 23:27:49
qp
by _HiKou_ @ 2022-07-13 07:16:36
好厉害