Cod sursa(job #1921234)

Utilizator KimerthSilviu Motfolea Kimerth Data 10 martie 2017 11:48:36
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.52 kb
#include <iostream>
#include <fstream>

using namespace std;

#define modulo 1999999973

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

long long square(long long n, long long p)
{
    if(p == 1)
        return n % modulo;
    if(p % 2 == 0)
        return square((n % modulo) * (n % modulo), p / 2) % modulo;
    else
        return square((n % modulo) * (n % modulo), (p - 1) / 2) % modulo;
}

int main()
{
    long long n, p;
    fin >> n >> p;

    fout << square(n, p);

    return 0;
}