Cod sursa(job #2884611)

Utilizator PescarusTanislav Luca Andrei Pescarus Data 4 aprilie 2022 12:36:06
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.33 kb
Raporteaza aceasta sursa 
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
int putere(int a, int n)
{
    int p=1;
    for(int i=1; i<=n; i<<=1)
    {
        if((n&i))
            p*=a;
        a=a*a;
    }
    return p;
}
int main()
{
    int x,y;
    f>>x>>y;
    g<<putere(x,y);
}