摘要: You are encountered with a traditional problem concerning the sums of powers. Given two integers nn and kk. Let f(i)=ikf(i)=ik, pleas... 阅读全文
posted @ 2018-04-28 17:28 ~~zcy 阅读(96) 评论(0) 推荐(0) 编辑
摘要: Welcome to HDU to take part in the second CCPC girls’ competition! A new automatic judge system is used for this competition. During ... 阅读全文
posted @ 2018-04-28 17:25 ~~zcy 阅读(109) 评论(0) 推荐(0) 编辑
摘要: Do you know what is called ``Coprime Sequence''? That is a sequence consists of nnpositive integers, and the GCD (Greatest Common Divi... 阅读全文
posted @ 2018-04-28 17:22 ~~zcy 阅读(71) 评论(0) 推荐(0) 编辑