Cod sursa(job #2102283)

Utilizator MarinPeptenaruMarin Vasile Peptenaru MarinPeptenaru Data 8 ianuarie 2018 16:55:09
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.34 kb
Raporteaza aceasta sursa 
#include <bits/stdc++.h>

using namespace std;
ifstream in("lgput.in");
ofstream out("lgput.out");
int n,p;
int putere (int x, int e)
{
    if(e==0) return 1;
    if(e==1) return x;
    if(e%2==0) return putere(x,e/2)*putere(x,e/2);
    return  x*putere(x,e-1);
}
int main()
{
    in>>n>>p;
    out<<putere(n,p);
    return 0;
}