Zadatak9.3

#include <iostream>

using namespace std;

class Tocka2D {
public:
    Tocka2D();
    //  ~Tocka2D();
    void SetX(double x);
    void SetY(double y);
    double GetX();
    double GetY();
    friend bool operator ==(const Tocka2D &a, const Tocka2D &b);

protected:
    double m_x, m_y;

};

Tocka2D::Tocka2D() {
    m_x = 0.0;
    m_y = 0.0;
}
void Tocka2D::SetX(double x) {
    m_x = x;
}
void Tocka2D::SetY(double y) {
    m_y = y;
}
double Tocka2D::GetX() {
    return m_x;
}
double Tocka2D::GetY() {
    return m_y;
}

class Tocka3D : public Tocka2D
{
public:
    Tocka3D();
    void SetZ(double z);
    double GetZ();
    Tocka3D(const Tocka3D &a);

protected:
    double m_z;
};
Tocka3D::Tocka3D() {
    m_x = 0.0;
    m_y = 0.0;
    m_z = 0.0;
}
Tocka3D::Tocka3D(const Tocka3D &a)
{
    m_z = a.m_z;
}
void Tocka3D::SetZ(double z)
{
    m_z = z;
}
double Tocka3D::GetZ()
{
    return m_z;
}
bool operator ==(const Tocka2D &a, const Tocka2D &b)
{
    if ((a.m_x == b.m_x) && (a.m_y == b.m_y))
        return true;
    else return false;
}

bool operator ==(Tocka3D &a,  Tocka3D &b)
{
    if ((a.GetX() == b.GetX()) && (a.GetY() == b.GetY()) && (a.GetZ() == b.GetZ()))
        return true;
    else return false;
}



int main() {
    Tocka2D T;
    Tocka3D A;

    cout << T.GetX() << " " << T.GetX() << endl;

    cout << A.GetX() << " " << A.GetY() << " " << A.GetZ() << endl;
    return 0;
}