@[Lxyaiyunmengyue](/user/1069088) 额，你交的时候freopen关了没？
by zxh923 @ 2023-12-26 19:54:07
@[Lxyaiyunmengyue](/user/1069088)
你为啥每询问一遍都跑一次筛法？
跑一次筛法不就够了吗？想筛几遍啊？
by Terrible @ 2023-12-26 20:01:36
@[Terrible](/user/195942) 感谢大佬
by lxy_ayaka @ 2023-12-27 18:27:54