@[AC之心](/space/show?uid=71548) Orz您切爆noip史上第3难题
by disangan233 @ 2019-08-04 14:31:34
@[AC之心](/space/show?uid=71548) %%%zyx
by ShineEternal @ 2019-08-04 14:31:55
@[vercont](/space/show?uid=45475) %%%神仙[vercont](/space/show?uid=45475)
by disangan233 @ 2019-08-04 14:33:16
@[disangan233](/space/show?uid=72679) orz您早就切爆IOI了
by ShineEternal @ 2019-08-04 14:34:29
orz
%%%
by hjxhjx @ 2019-08-04 14:39:52
@[disangan233](/space/show?uid=72679) 这道题不算难吧
by Vn_nV @ 2019-08-04 14:42:21
最后一题不是枚举前后两个圆盘，然后组合数算吗？
by IOI2021 @ 2019-08-04 14:42:37
@[Vn_nV](/space/show?uid=183821) 自己想不简单鸭QwQ
by StarKnight @ 2019-08-04 14:59:46
@[disangan233](/space/show?uid=72679) 史上第一和第二分别是啥？QAQ
by StarKnight @ 2019-08-04 15:00:31
@[AC之心](/space/show?uid=71548) 去年D2T2T3
by disangan233 @ 2019-08-04 17:28:32