Cod sursa(job #1679696)

Utilizator TudorFinaruTudor Cristian Finaru TudorFinaru Data 8 aprilie 2016 10:18:34
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.36 kb
#include <fstream>
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
int n,p,i,m;
long long a,sol;
int main()
{
    sol=1;
    f>>n>>p;
    a=n;
    m=1999999973;
    for(i=0;(1<<i)<=p;++i)
    {
        if(((1<<i&p))>0) sol=(sol*a)%m;
        a=((a*a)%m);
    }
    g<<sol<<'\n';
    f.close();
    g.close();
    return 0;
}