[温馨提示](https://www.luogu.org/discuss/show?postid=42519)
by ejfbdn @ 2018-06-29 13:54:18
@[chen_zhe](/space/show?uid=8457) 改一下题面最后的数据范围描述吧
by 凄魉 @ 2018-07-20 18:51:46
@[chen_zhe](/space/show?uid=8457)
by pufanyi @ 2018-07-25 13:48:32
@[chen_zhe](/space/show?uid=8457)
by XiaoX @ 2018-08-18 21:44:25
@[chen_zhe](/space/show?uid=8457)
by 你的背包 @ 2019-07-25 09:25:41
@[chen_zhe](/space/show?uid=8457)
by zzw4257 @ 2019-08-21 08:28:15
@[chen_zhe](/user/8457)
by xwmwr @ 2020-04-16 08:38:50