Cod sursa(job #1992702)

Utilizator HumikoPostu Alexandru Humiko Data 21 iunie 2017 10:17:43
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.47 kb
#include <fstream>

using namespace std;

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

long long putere(long long n, long long p)
{
    long long rezultat=1;
    while(p)
    {
        if (p%2==0)
        {
            p/=2;
            n*=n;
        }
        else
        {
            --p;
            rezultat*=n;
        }
    }
    return rezultat;
}

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