Cod sursa(job #1116762)

Utilizator FasinedJohnny Bravo Fasined Data 22 februarie 2014 19:55:34
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.31 kb
Raporteaza aceasta sursa 
#include<fstream>
#define nx 1999999973
using namespace std;
int n,x;
long long s;

ifstream fin("lgput.in");
ofstream fout("lgput.out");

int main()
{
    fin>>x>>n;
    s=1;

    while(n)
    {
        if(n%2)s=(s*x)%nx,n--;
        else x=(x*x)%nx,n/=2;
    }

    fout<<s;
    return 0;
}