Cod sursa(job #1254773)

Utilizator op_deliversDohotar Mircea Ionut op_delivers Data 3 noiembrie 2014 14:25:40
Problema Ridicare la putere in timp logaritmic Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.45 kb
#include <fstream>
using namespace std;

ifstream is("1.in");
ofstream os("1.out");

#define mod 1999999973

int n, p;

int Lgput(long long x, long long n);

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

int Lgput(long long x, long long n)
{
    if ( n == 1 ) return x;
    long long r = Lgput(x, n/2);
    r = r * r % mod;
    if ( n & 1)
    {
        r *= x;
        r %= mod;
    }
    return r;

}