[题目背景长的题目实在有点多，这还是不要太在意为妙](https://www.luogu.com.cn/problem/list?keyword=Ynoi&type=AT%7CB%7CCF%7CP%7CSP%7CUVA&orderBy=pid&order=asc&page=1)
by Baoqiancheng11 @ 2023-05-26 20:19:32
clfgop
by BrooklynNets @ 2023-05-26 20:27:29
qwq以后再也不做黑题了qwq
by no_brown_me_please @ 2023-05-27 09:56:08
@[no_brown_me_please](/user/672156) 我觉得最好别简化，这里包含洛谷的老照片，十分珍贵
by DPG_DPG123 @ 2023-06-23 14:11:33