#include "Rectangle.cpp"

int main() {
  Shape shape(0x333333, 5);
  Shape &shape_ref = shape, *shape_ptr = &shape;
  Rectangle rectangle(0xffffff, 2, 10, 20);
  Shape &rect_ref = rectangle, *rect_ptr = &rectangle;

  cout << "Shape area: " << shape.getArea() << endl;
  cout << "Shape reference area: " << shape_ref.getArea() << endl;
  cout << "Shape pointer area: " << shape_ptr->getArea() << endl;
  cout << endl;
  cout << "Rectangle area: " << rectangle.getArea() << endl;
  cout << "Rectangle reference area: " << rect_ref.getArea() << endl;
  cout << "Rectangle pointer area: " << rect_ptr->getArea() << endl;
}