Why we need prototype design pattern

Question

Hi

We have copy constructor ( shallow copy ) and user defined constructor (deep copy) .

Also it works for polymorphic behaviour as well as working in this code below:

With this , I believe all cases works fine and don't understand the need of prototype pattern's need and clone method it provides
https://sololearn.com/compiler-playground/cMp6WtZUaJK3/?ref=app

Answer 1

C++