Cod sursa(job #1882330)

Utilizator hantoniusStan Antoniu hantonius Data 17 februarie 2017 09:34:44
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.48 kb
#include <fstream>
#define nr 1999999973
using namespace std;

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

int64_t calcul(int n, int k)
{
    if (k == 0)
        return 1;
    if (k == 1)
        return n % nr;
    if (k % 2 == 0)
        return calcul(n, k / 2) % nr * calcul(n, k / 2) % nr;
    return n % nr * calcul(n, k / 2) % nr * calcul(n, k / 2) % nr;
}

int main()
{
    int n, k;

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