Cod sursa(job #2564634)

Utilizator Fatu_SamuelFatu Samuel Fatu_Samuel Data 2 martie 2020 08:34:28
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.53 kb
#include <bits/stdc++.h>

using namespace std;

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

const long long MOD = 1999999973;

long long n, p;

long long epq(long long n, long long p)
{
    if (p == 0)
        return 1;
    else if (p == 1)
        return n;
    else if (p % 2 == 0)
        return epq(n * n, p >> 1) % MOD;
    else
        return n * epq(n * n, p >> 1) % MOD;
}

int main()
{
    fin >> n >> p;
    fout << epq(n, p) % MOD;

    fin.close();
    fout.close();
    return 0;
}