Polymorphic Array of Shapes

The abstract base class Shape declares a pure virtual area(). Complete BOTH derived classes:
- Square stores a side and its area() returns side times side
- Rectangle stores width and height and its area() returns width times height

The provided main stores both kinds in an array of Shape pointers and prints the total area — the correct area() is chosen for each object at runtime.

Expected Output:

Topics:

Inheritance

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