Cod sursa(job #1612031)

Utilizator BaconDroidAndrei Katona BaconDroid Data 24 februarie 2016 17:45:38
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.56 kb
#include <fstream>
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
long long ridicare(long long x, long long n)
{
    if(n==0)
        return 1;
    long long y=1;
    while(n)
        if(n%2==0)
        {
            x=x%1999999973*x%1999999973;
            n=n/2;
        }
        else
        {
            y=x%1999999973*y%1999999973;
            x=x%1999999973*x%1999999973;
            n=(n-1)/2;
        }
    return y;
}

int main()
{
    long long n,p;
    f >>n>>p;
    g << ridicare(n,p);
    return 0;
}