cqbzly @ 2021-10-20 15:46:09
建议评紫(滑稽)
理由:考察了选手的离线和对 DAG 的理解以及逆向思维 (因为本题要倒着 DAG )
by YamadaRyou @ 2021-10-20 15:48:20
顺便建议T1评蓝(
by BrotherCall @ 2021-10-20 15:51:41
顺便建议T2评红(
by SSH_automaton @ 2021-10-20 15:53:00
顺便建议 T2 评黄(简单位运算)
NOIP2020 T4 评黑(多项式)
by little_cindy @ 2021-10-20 15:54:02
顺便建议所有题评黑(蒟蒻不会)
by yzh_Error404 @ 2021-10-20 15:54:25
顺便建议T1评紫(
by SilviaLss @ 2021-10-20 15:55:43
差不多得了
by pomelo_nene @ 2021-10-20 16:00:05
@multiply @cqbzly 膜拜
by cirnovsky @ 2021-10-20 16:01:50
跪拜
by SilviaLss @ 2021-10-20 16:01:59
@SyadouHayami 拜谢
by cirnovsky @ 2021-10-20 16:03:23
ly 很关心你题目难度的合理,快说谢谢 ly