Cod sursa(job #3264547)

Utilizator Andercau_VasileAndercau Vasile Andercau_Vasile Data 22 decembrie 2024 13:00:15
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.49 kb
#include <fstream>
using namespace std;

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

const long long MOD = 1999999973;

long long exponentiere(long long a, long long b) {
    if (b == 0) {
        return 1;
    }
    if (b % 2) {
        return exponentiere(a, b - 1) * a % MOD;
    }
    long long p = exponentiere(a, b / 2) % MOD;
    return p * p % MOD;
}

int main() {
    long long n, p;
    fin >> n >> p;

    fout << exponentiere(n, p);
    return 0;
}