Cod sursa(job #3003608)

Utilizator LiviuInfoPrioteasa Liviu LiviuInfo Data 15 martie 2023 20:16:58
Problema Ridicare la putere in timp logaritmic Scor 30
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.41 kb
#include <fstream>
#define NR 1999999973
using namespace std;

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

long long n, p;

long long exp(int a, int b)
{
    if (b == 0)
        return 1;
    long long p1 = exp(a, b / 2) % NR;

    if (b % 2 == 0)
        return p1 * p1 % NR;
    return a * p1 * p1 % NR;
}

int main()
{
    fin >> n >> p;
    fout << exp(n, p);
    return 0;
}