Cod sursa(job #1378201)

Utilizator Corina1997Todoran Ana-Corina Corina1997 Data 6 martie 2015 10:59:01
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.54 kb
#include <fstream>
#include <iostream>
using namespace std;

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

const int MOD = 1999999973;

int Pow( int a, int b );
int n, p;

int main()
{
    is >> n >> p;

    os << Pow(n, p);

    is.close();
    os.close();
    return 0;
}

int Pow( int a, int b )
{
    if ( b == 1 )
        return a;
    if ( b == 0 )
        return 1;
    int aux = Pow( a, b / 2 );
    aux = ( 1LL * aux * aux ) % MOD;
    if ( b & 1 )
        aux *= a;
    aux %= MOD;
    return aux;
}