Cod sursa(job #1895797)

Utilizator SkiryFarauanu Ionut Skiry Data 28 februarie 2017 11:02:46
Problema Invers modular Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.31 kb
Raporteaza aceasta sursa 
#include <fstream>

using namespace std;
ifstream f("inversmodular.in");
ofstream g("inversmodular.out");
unsigned long long a,b,nr;
unsigned long i;
int main()
{
    f>>a>>b;
    b-=2;
    for(nr=1,i=(1<<31);i;i>>=1)
    {
        nr*=nr;
        if(i&b) nr*=a;
    }
    g<<nr%(b+2);
    return 0;
}