Cod sursa(job #681907)

Utilizator psycho21rAbabab psycho21r Data 18 februarie 2012 01:44:07
Problema Ridicare la putere in timp logaritmic Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.41 kb
#include <fstream>
using namespace std;
#define MOD 1999999973;
int main()
{
    unsigned int n, f;
    long long sol = 1, x;
    ifstream in("lgput.in"); in >> f >> n; in.close();
    x = f;
    for(unsigned int i = 0; (1<<i) <= n; ++i)
    {
        if(((1<<i)&f) > 0)
            sol = (sol*x)%MOD;
        x = (x*x)%MOD;
    }
    ofstream out("lgput.out"); out << sol; out.close();
    return 0;
}