Cod sursa(job #2180820)

Utilizator AlexandruabcdeDobleaga Alexandru Alexandruabcde Data 21 martie 2018 11:08:28
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.32 kb
Raporteaza aceasta sursa 
#include <fstream>

using namespace std;
ifstream f ("lgput.in");
ofstream g ("lgput.out");
int n,p;
int lgput (int a, int b)
{
    int p=1;
    while (b)
    {
        if (b%2==1) p=p*a,b--;
        else a*=a,b/=2;
    }
    return p;
}
int main()
{
    f>>n>>p;
    g<<lgput(n,p)<<'\n';
    return 0;
}