Cod sursa(job #2561545)

Utilizator vvvaliiiValeriu vvvaliii Data 28 februarie 2020 21:59:32
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.45 kb

#include <fstream>

using namespace std;

int pow(int b, int e) {
    if ( e == 1)
        return b;
    if( e % 2 == 1) {
        return b * pow(b * b, e / 2);
    }
    return pow(b * b, e / 2);
}

int main(void) {
    ifstream in;
    ofstream out;
    in.open ("lgput.in");
    out.open ("lgput.out");
    in.is_open();
    int a, b;
    in>>a>>b;
    out<<pow(a,b)<<"\n";
    in.close();
    out.close();
    return 0;
    
}