@[CELU官方账号](/user/343213) 开下题解（
by chenxinyang2006 @ 2020-11-21 18:42:59
qp
by Sktic @ 2020-11-21 18:43:34
qp
by BotDand @ 2020-11-21 18:45:23
qp
by PersistentLife @ 2020-11-21 18:45:40
hp
by Ryo_Yamada @ 2020-11-21 18:47:20
@[CELU官方账号](/user/343213) 开下题解（
by Remake_ @ 2020-11-21 18:48:05
或者求个T3算法（
by 江户川·萝卜 @ 2020-11-21 18:48:47
qp
by Mr_Eight @ 2020-11-21 18:49:24
@[chenxinyang2006](/user/49776) @[Miracle_Creator](/user/223797) 可能要晚些，出题人不在线
by Eon_Sky @ 2020-11-21 18:49:47
T4
https://www.luogu.com.cn/paste/5f1uxn7q
by Eon_Sky @ 2020-11-21 18:50:48