哦
by 警策看取 @ 2020-04-16 18:21:33
哦
by Toclhu @ 2020-04-16 18:24:06
orz~~其实欧拉筛挺简单的~~
by HohleFeuerwerke @ 2020-04-16 18:24:08
建议直接发题解，请勿在讨论写
by SSerxhs @ 2020-04-16 18:28:31
@[SSerxhs](/user/29826) 他大概只是提醒一下，这题没法发题解了 qaq
by syksykCCC @ 2020-04-16 19:05:40
惊现syk巨佬！！！%%%%
by vectorwyx @ 2020-04-16 20:08:18
不会线筛应该不会来看这么难的题把
by vеctorwyx @ 2020-09-27 21:16:16
顺便Orz一波wyx大佬
Orz wyx！！！ %%%%%%%%
by vеctorwyx @ 2020-09-27 21:17:05
@[vеctorwyx](/user/169422) ~~考古~~
但是当时我就是过来看这题了
by Seauy @ 2021-02-26 20:36:33
~~那就去学一下线性筛~~
by lg_zhou @ 2022-03-10 12:54:46