2019年11月6日
G - The Euler function(hdu 2824)
摘要： 原题链接 Problem Description The Euler function phi is an important kind of function in number theory, (n) represents the amount of the numbers which are 阅读全文
posted @ 2019-11-06 19:35 _Alexander 阅读(136) 评论(0) 推荐(0)
欧拉函数的应用(hdu 3501)
摘要： 原题链接 http://acm.hdu.edu.cn/showproblem.php?pid=3501 Given a positive integer N, your task is to calculate the sum of the positive integers less than N 阅读全文
posted @ 2019-11-06 12:27 _Alexander 阅读(224) 评论(0) 推荐(0)