Cod sursa(job #2823500)

Utilizator Teodor11Posea Teodor Teodor11 Data 28 decembrie 2021 18:14:37
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.48 kb
#include <iostream>
#include <fstream>
using namespace std;

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

int main() {
    ifstream fin("lgput.in");
    ofstream fout("lgput.out");
    long long n, p;
    fin >> n >> p;
    fout << rest(n, 1999999973, p);
    return 0;
}