Cod sursa(job #1925818)

Utilizator PondorastiAlex Turcanu Pondorasti Data 13 martie 2017 19:01:21
Problema Ridicare la putere in timp logaritmic Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.4 kb
#include <fstream>
using namespace std;
long long Power(int n,int k);
int main()
{
    ifstream cin("lgput.in");
    ofstream cout("lgput.out");
    long long n,k;
    cin>>n>>k;
    cout<<Power(n,k);
    return 0;
}
long long Power(long long n, long long k)
{
    if(k==0)
        return 1;
    long long r;
    r=Power(n,k/2);
    r*=r;
    if(k%2==1)
        r*=n;
    return r;
}