Tag: Aoj 2018 ACPCday2 G: Painting Sep 20 2018 ACPCday2 F: Timing Sep 20 2018 ACPCday2 E: Donut Hole Sep 20 2018 ACPCday2 D: Gridgedge Sep 20 2018 ACPCday2 C: Round And Round Sep 20 2018 ACPCday2 B: U&U Sep 20 2018 ACPC2018 day1 E: 凸凹数列 Sep 19 2018 ACPC2018 day1 C: 素数 Sep 19