哇有Ynoi2015辣
by mrsrz @ 2018-12-08 20:01:35
by tоurist @ 2018-12-08 20:07:19
@[Sai_0511](/space/show?uid=114320) 已修正
by noip @ 2018-12-09 22:35:31
@[noip](/space/show?uid=3296) 所以 $a_i$ 的范围是啥
by hellomath @ 2018-12-18 16:40:10
@[larryzhong](/space/show?uid=20438) 其实这个没什么意义吧
by noip @ 2018-12-18 22:57:13
Ynoi是反着出的吗？！
by Albert_Wei @ 2022-11-07 08:12:22