Delta

#include <iostream>
#include <cmath>

using namespace std;

int main()
{
    int a,b,c, delta;

    do{
        cout << "Wpisz a: ";
        cin >> a;
    }while(a<=0);
        cout << "Wpisz b: ";
        cin >> b;
        cout << "Wpisz c: ";
        cin >> c;

        delta = sqrt(b*b-4*a*c);
        cout << delta << endl;

        if(delta>0)
        {
            cout << "Wynik x0= " << (-b-delta)/(2*a) << endl;
            cout << "Wynik x1= " << (-b+delta)/(2*a);
        }
        else if(delta==0)
        {
            cout << "Wynik x0= " << -b/(2*a);
        }
        else
        {
            cout << "Brak odpowiedzi";
        }
    return 0;
}