Cod sursa(job #3227988)

Utilizator AndreiDocaDoca Andrei AndreiDoca Data 4 mai 2024 17:16:27
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.51 kb
#include <iostream>
#include <fstream>

using namespace std;

const int M = 1999999973;

long int power(long int n, long int p) //computes n ^ p modulo M
{
    if(p == 0)
        return 1;
    if(p % 2)
        return (n * power(n * n, p / 2)) % M;
    return power(n * n, p / 2) % M;
}

int main(void)
{
    ifstream fin("lgput.in");
    ofstream fout("lgput.out");
    
    long int n, p;
    fin >> n >> p;

    fout << power(n, p) << "\n";

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