？？！！
P1387交上去WA+TLE了
by 我很辣ji看签名 @ 2018-10-24 13:13:59
@[yummy](/space/show?uid=101694) 这道题是5倍经验QAQ
by enceladus @ 2018-10-24 13:50:18
@[enceladus](/space/show?uid=88127) 出门看神仙
by ghj1222 @ 2018-10-24 13:51:04
@[electrodynamix](/space/show?uid=55377) 稍微有点变动
by yummy @ 2018-10-24 17:06:38
@[enceladus](/user/88127) 请问是哪五倍 QaQ
by InversionShadow @ 2023-04-28 21:36:50