int main () {
  Rectangle rect = {5,6};              // καλεί Rectangle(int w, int h)
  Rectangle rects[2] = {{4,5}, {5,6}}; // καλεί Rectangle(int w, int h) για κάθε θέση του πίνακα
  cout << "[rect    ] area: " << rect.getWidth() * rect.getHeight() << endl;
  cout << "[rects[0]] area: " << rects[0].getWidth() * rects[0].getHeight() << endl;
  cout << "[rects[1]] area: " << rects[1].getWidth() * rects[1].getHeight() << endl;
  return 0;
}