摘要: Codeforces Round 489 (Div. 2) A. Nastya and an Array B. Nastya Studies Informatics $gcd(a,b) = x, lcm(a,b) = y$ , 即 $gcd(\frac {a}{x},\frac {b}{x}) = 阅读全文
posted @ 2018-06-20 18:51 RRRR_wys 阅读(111) 评论(0) 推荐(0) 编辑