WA #11 #12 88pts 逆元

P1593 因子和

提示:“质因子”膜9901可以是“1”。
by ricky0916 @ 2023-10-27 13:54:19


@[ricky0916](/user/289230) 感谢
by kuailedetongnian @ 2023-10-27 14:44:14


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