Cod sursa(job #857082)

Utilizator XeBluePodaru Mihai XeBlue Data 17 ianuarie 2013 11:45:49
Problema Ridicare la putere in timp logaritmic Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.32 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;
ifstream in("lgput.in");
ofstream out("lgput.out");
int main()
{
    long n, p=1, a=2;
    in >> n >> p;
    while(n)
    {
        if(n%2!=0)
            p=(p*a)%1999999973;
        a*=a;
        n/=2;
    }
    out << p;
    in.close();
    out.close();
    return 0;
}