Cod sursa(job #1916673)

Utilizator alexandravargaAlexandra Varga alexandravarga Data 9 martie 2017 10:06:23
Problema Ridicare la putere in timp logaritmic Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.41 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream in ("lgput.in");
ofstream out ("lgput.out");
double putere (double x, int n)
{
    double p=1;
    while(n)
    {
        if (n%2==1)
        {
            p=p*x;
            n--;
        }
        x=x*x;
        n=n/2;
    }
    return p;
}
double x
int n;
int main()
{
    in>>x>>n;
    out<<putere(x,n);


    return 0;
}