Cod sursa(job #810029)

Utilizator rogoz.bogdanRogoz Bogdan rogoz.bogdan Data 9 noiembrie 2012 14:35:50
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.39 kb
#include<fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");

unsigned long expo(long a, long b)
{
    unsigned long result = 1;
    while (b){
    if (b&1)
    {
        result *= a;
    }
        b >>=1 ;
        a *= a;
    }
    return result;
}

int main()
{
    long n,p;
    fin>>n>>p;
    fout<<expo(n,p)%1999999973;
    return 0;
}