Cod sursa(job #2406393)

Utilizator edi9876Negescu Eduard Mihai edi9876 Data 15 aprilie 2019 18:27:38
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.42 kb
#include <fstream>

using namespace std;

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

const int M = 1999999973;

int lgput(int a, int n)
{
    if(n == 0)
    {
        return 1;
    }
    if(n % 2 == 0)
    {
        return lgput((long long)a * a % M, n / 2);
    }
    return (long long) a * lgput((long long) a * a % M, n / 2) % M;
}

int main()
{
    int n, p;
    in >> n >> p;
    out << lgput(n, p);
    return 0;
}