Cod sursa(job #1118803)

Utilizator barabasi_csongorBarabasi Csongor barabasi_csongor Data 24 februarie 2014 13:19:48
Problema Ridicare la putere in timp logaritmic Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.46 kb
Raporteaza aceasta sursa 
#include <cstdio>

using namespace std;

int main()
{freopen("lgput.in","r",stdin);
freopen("lgput.out","w",stdout);
unsigned int i, n, p,m;
    long long a, sol = 1;

    freopen("lgput.in","r",stdin);
    freopen("lgput.out","w",stdout);
    scanf("%d %d", &n, &p);
    a = n;
    for (i = 0; (1<<i) <= p; ++ i)
    {
        if ( ((1<<i) & p) > 0)
            sol= (sol * a) % m;

            a=(a * a) % m;
    }
    printf("%lld\n", sol);
}