摘要: n<=15 a,b<=10^9 N<=10^4 #include<cstdio> #define LL long long int n, a, b, ans, t[20]; LL gcd(LL x, LL y) { if (!y) return x; return gcd(y, x%y); } vo 阅读全文
posted @ 2020-05-06 19:57 INFP 阅读(97) 评论(0) 推荐(0) 编辑