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链接: https://vjudge.net/problem/CodeForces 721C 题意: Recently Irina arrived to one of the most famous cities of Berland — the Berlatov city. There are n 阅读全文
posted @ 2019-08-20 20:32
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摘要：
链接: https://vjudge.net/problem/CodeForces 721B 题意: Vanya is managed to enter his favourite site Codehorses. Vanya uses n distinct passwords for sites 阅读全文
posted @ 2019-08-20 20:29
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