Cod sursa(job #1785500)

Utilizator xdanabica dana xdana Data 21 octombrie 2016 13:58:14
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.4 kb

#include <stdio.h>

const int m = 1999999973;

int main()
{
    unsigned int i, n, p;
    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", sol);
}