Cod sursa(job #600110)

Utilizator andrianAndrian andrian Data 30 iunie 2011 16:25:36
Problema Ridicare la putere in timp logaritmic Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.48 kb
#include <iostream>
#include <fstream>
#define modulo 1999999973
using namespace std;
long long  n, p;
long bit(long long x, long long y){
    if(y&1) return x;
    return 1;
}
long pow(long long x, long long y){
    if(y>0){
        long z=pow(x,y >> 1);
        return bit(x,y)*z*z;//%modulo;
    }
    return 1;
}
int main()
{
    ifstream in("lgput.in");
    in >> n >> p;
    in.close();
    //ofstream out("lgput.out");
    cout << pow(n, p);
    //out.close();
    return 0;
}