51 Nod 1556计算(默慈金数的应用)

时间 2021-01-11

原文原文链接

#include<bits/stdc++.h> #define mod 1000000007 using namespace std; typedef long long ll; ll moni[1000005]; ll exgcd(ll a, ll b, ll &x, ll &y) { if (b == 0) { x = 1; y = 0;