Cod sursa(job #1921358)

Utilizator maria_sinteaMaria Sintea maria_sintea Data 10 martie 2017 12:21:53
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.37 kb
#include <cstdio>

using namespace std;

int a, b;

int putere(int a, int b)
{
    if(b==0)
        return 1;
    if(b%2==0)
        return putere(a*a, b/2);
    return putere(a, b-1)*a;
}

int main()
{
    freopen("lgput.in", "r", stdin);
    freopen("lgput.out", "w", stdout);

    scanf("%d %d", &a, &b);
    printf("%d", putere(a, b));
    return 0;
}