Cod sursa(job #1006561)

Utilizator alexb97Alexandru Buhai alexb97 Data 7 octombrie 2013 11:57:47
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.49 kb
#include <fstream>
#define MOD 1999999973
using namespace std;

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

int Pow(int x, int n);

int k, p;

int main()
{
    is >> k >> p;
    os << Pow(k, p);
    is.close();
    os.close();
    return 0;
}

int Pow(int x, int n)
{
    if ( n == 1 )
        return x;
    int r = Pow(x, n / 2);
    r = ((long long) r * r) % MOD;
    if ( n % 2 == 1 )
    {
        r *= x;
        r %= 1999999973;
    }
    return r;
}