Cod sursa(job #2638820)

Utilizator zarg169Roxana zarg169 Data 30 iulie 2020 01:16:09
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.5 kb
#include <iostream>
#include <fstream>

using namespace std;
long long MOD = 1999999973;
long long lgput(long long x, long long n) {
    if (n == 0) {
        return 1;
    } else if (n % 2 == 0) {
        return lgput ((x * x) % MOD, n / 2);
    } else {
        return (x * lgput((x * x) % MOD, (n - 1)/2)) % MOD;
    }
}

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

    long long n, p;
    fin >> n >> p;
    fout << lgput(n, p);

    return 0;
}