2019年8月20日
JAG Asia 2017 C-----Prime-Factor Prime(素数区间筛)
摘要： C: Prime-Factor Prime 题目描述 A positive integer is called a "prime-factor prime" when the number of its prime factors is prime. For example, 12 is a pri 阅读全文
posted @ 2019-08-20 22:21 SpringYEP 阅读(233) 评论(0) 推荐(0) 编辑