zadanie 20

#include <iostream>
#include <math.h>
using namespace std;
float n;
int K;

int main()
{
    cout << "podaj wielkosc nakladu: " << endl;
    cin >> n;
    if (n != ceil(n) || n <= 0){
        K = 0;
        cout << "wartosc zamowienia wynosi: " << K <<endl;
    }
    else if (n > 1000){
        K = 10 * n;
        cout << "wartosc zamowienia wynosi: " << K << endl;
    }
    else if (n >= 500 && n <=1000){
        K = 12 * n;
        cout << "wartosc zamowienia wynosi: " << K << endl;

    }
    else {
        K = 15 * n;
        cout << "wartosc zamowienia wynosi: " << K << endl;
    }

}