Cod sursa(job #1479872)

Utilizator elevenstrArina Raileanu elevenstr Data 1 septembrie 2015 15:28:59
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.35 kb
Raporteaza aceasta sursa 
#include <iostream>
#include <fstream>
using namespace std;
ifstream in("lgput.in");
ofstream out("lgput.out");
long long int exp(int a, int b){
  long long int r=1;
  while(b)
  {   if(b&1)
        r=r*a;
        b>>=1;
        a=a*a;
  }
return r;
}
int main()
{
    long long int n,m;
    in>>n>>m;
    out<<exp(n,m);
    return 0;
}