Cod sursa(job #1456335)

Utilizator bostanmateiBostan Matei-Calin bostanmatei Data 30 iunie 2015 12:42:21
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.33 kb
Raporteaza aceasta sursa 
#include <fstream>

using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
long long n,p,i,r=1,mod=1999999973;
int main()
{
    fin>>n>>p;
    for(i=0; (1<<i)<=p; i++)
        {
            if((1<<i)&p)
                r=(r*n)%mod;
            n=(n*n)%mod;
        }
    fout<<r<<'\n';
    return 0;
}