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Codeforces Round #720 (Div. 2) 来源:https://codeforces.com/contest/1521 A.Nastia and Nearly Good Numbers 若 $\mathrm{B=1}$, 则不合法. 否则直接构建 $\mathrm{A, A \t 阅读全文
posted @ 2021-09-17 17:34
guangheli
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摘要:
Codeforces Round #721 (Div. 2) 来源:https://codeforces.com/contest/1527 A. And Then There Were K 不妨打一个表看看有没有什么规律. 发现每个数字 $\mathrm{x}$ 的答案是 $\mathrm{x}$ 阅读全文
posted @ 2021-09-17 02:16
guangheli
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