随笔分类 - 数学-排斥定理
摘要:Teemo's dream Teemo decides to use his money to conquer the universe. It is known that there are m planets that humans can reach at present. They are
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摘要:A 无关(relationship) 链接:https://www.nowcoder.com/acm/contest/135/A来源:牛客网 题目描述 若一个集合A内所有的元素都不是正整数N的因数,则称N与集合A无关。 给出一个含有k个元素的集合A={a1,a2,a3,...,ak},求区间[L,R
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