Cod sursa(job #1921401)

Utilizator hantoniusStan Antoniu hantonius Data 10 martie 2017 12:33:17
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.47 kb
#include <fstream>
#define nr 1999999973
using namespace std;

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

long long calcul(int n, int k)
{
    long long aux;

    if (k == 0)
        return 1;
    if (k == 1)
        return n % nr;
    aux = calcul(n, k / 2);
    if (k % 2 == 0)
        return aux * aux % nr;
    return n % nr * aux % nr * aux % nr;
}

int main()
{
    int n, k;

    fin >> n >> k;
    fout << calcul(n, k);
    return 0;
}