http://acm.hdu.edu.cn/showproblem.php?pid=2588
ans=sum(elur(n/q))(q>=m,q|n);用搜索求大于等于m且能整除n的数q
posted on 2012-05-02 20:57 Goal 阅读(202) 评论(0) 编辑 收藏 举报
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