摘要: Problem Given integers N and M, how many integer X satisfies 1<=X<=N and (X,N)>=M. The first line of input is an integer T(T<=100) representing the nu 阅读全文
posted @ 2021-01-21 17:10 CCWUCMCTS 阅读(44) 评论(0) 推荐(0) 编辑
摘要: 记录一下方便回看 欧拉函数|(扩展)欧拉定理|欧拉反演 初探莫比乌斯反演及欧拉反演 欧拉素数筛的理解与实现 阅读全文
posted @ 2021-01-21 14:56 CCWUCMCTS 阅读(47) 评论(0) 推荐(0) 编辑