#include <math.h>
#include <iostream>
#include <conio.h>

using namespace std;
int main()
{
    int a;
    int b;
    int c;

    cout << "Masz rownanie kwadratowe ax*x+bx+c=0\n";
    cout << "Podaj (a != 0) liczbe a: ";
    cin >> a;
    cout << "\nPodaj (b != 0) liczbe b: ";
    cin >> b;
    cout << "\nPodaj (c != 0) liczbe c: ";
    cin >> c;
        switch (a)
    {
        case 0:
        cout << "Brak rozwiazan!";
        break;
    }
       if (a != 0)
           {

            cout << "\nRownanie wyglada nastepujaco: " << a << "x*x + " << b <<"x + " << c << " = 0" << endl;
            cout << "\nObliczamy delte: b*b - 4ac";
            cout << "\nPodstawiamy do wzoru: "<< b << "*" << b << "-" << 4 << "*" << a << "*" << c << endl;
            cout << "Delta wynosi: " << b*b-4*a*c << endl;

        double delta = b*b-4*a*c;
        if (delta > 0)
        {
        cout << "Obliczamy x1 oraz x2."<<endl;
        cout << "x1 = " << (-b - sqrt(delta))/2*a << endl;
        cout << "x2 = " << (-b + sqrt(delta))/2*a << endl;
        }
        if (delta == 0)
        {
        cout << "Obliczamy x0." << endl;
        cout << "x0 = " << -b/2*a << endl;
        }
        if (delta < 0)
        cout << "Brak rozwiazan!" << endl;
        }



    getch();

}