Cod sursa(job #2762901)

Utilizator Teodor_AxinteAxinte Teodor-Ionut Teodor_Axinte Data 9 iulie 2021 20:57:27
Problema Ridicare la putere in timp logaritmic Scor 10
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 int MOD = 1999999973;

int power(int b, int e) {
    if (e == 0)
        return 1;
    if (e == 1)
        return b;
    if (e % 2 == 1)
        return (b * power(b, e - 1) % MOD) % MOD;
    else
        return (power(b, e / 2) % MOD * power(b, e / 2) % MOD) % MOD;
}

long long int a, b;

int main() {
    fin >> a >> b;
    a%=MOD;b%=MOD;
    fout << power(a, b) % MOD;
    return 0;
}