Cod sursa(job #1747767)

Utilizator APatarlageanuAndreea Patarlageanu APatarlageanu Data 25 august 2016 16:03:57
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.33 kb
Raporteaza aceasta sursa 
#include <fstream>
#include <cmath>

using namespace std;
ifstream in ( "lgput.in" );
ofstream out ( "lgput.out" );

int main()
{
    int a, b, p;

    in>>a>>b;
    p = 1;
    while ( b > 0 ) {
        if ( b % 2 == 1 )
            p = p * a;
        b = b / 2;
        a = a * a;
    }
    out<<p;


    return 0;
}