Cod sursa(job #1509114)

Utilizator adriancristacheCristache Adrian adriancristache Data 23 octombrie 2015 15:23:33
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.37 kb
#include <iostream>
#include <fstream>

using namespace std;
ifstream in("lgput.in");
ofstream out("lgput.out");
int main()
{
    int n,k,r=1,a;
    in>>n>>k;
    while(k!=1)
    {if(k%2==0)
        {
            n=n*n;
            k=k/2;
        }
        else
            {k=k-1;
            r=r*n;
            n=n*r;}
    }
    out<<n;
    return 0;
}