Cod sursa(job #1438684)

Utilizator FlorinHajaFlorin Gabriel Haja FlorinHaja Data 20 mai 2015 16:26:39
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.36 kb
#include <fstream>
#define mod 1999999973
using namespace std;

ifstream f("lgput.in");
ofstream g("lgput.out");

int a, sol, n, p, i;

int main()
{
    f >> n >> p;
    a = n, sol = 1;
    for (i = 0; (1 << i) <= p; i++)
    {
        if (((1 << i) & p) > 0)
            sol = (sol*a)%mod;
        a = (a*a)%mod;
    }
    g << sol;
    return 0;
}