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A k-multiple free set is a set of integers where there is no pair of integers where one is equal to another integer multiplied by k. That is, there are no two integers x and y (...
Petya and Vasya are tossing a coin. Their friend Valera is appointed as a judge. The game is very simple. First Vasya tosses a coin xtimes, then Petya tosses a coin y times. If ...
Navicat for mysql和cmd连接MYSQL数据库两种方式建表时的反馈信息.由PD建表而带来的
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