Cod sursa(job #2124411)

Utilizator StarkillerCalin Stafie Starkiller Data 7 februarie 2018 10:52:31
Problema Invers modular Scor 60
Compilator cpp Status done
Runda Arhiva educationala Marime 0.27 kb
Raporteaza aceasta sursa 
#include <fstream>

using namespace std;
ifstream f("inversmodular.in");
ofstream g("inversmodular.out");
long long a,n,b;
int main()
{int i,r=1;
f>>a>>n;
a=a%n;
b=n-2;
while(b)
{
    if(b%2) r=(r*a)%n;
    a=(a*a)%n;
    b=b/2;
}
g<<r;
    return 0;
}