Why is it not being executed??? Plz tell me the corrections required

Question

Program : Inheritance by using virtual function

https://code.sololearn.com/cJbGm6caOG5p/?ref=app

Answer 1

Notes:
- In the top, you should write #include <iostream> rather than iostream.h
- The C++ compiler here in SoloLearn does not support conio.h (I think)
- Replace 'namespace std;' with "using namespace std;"
- It should be int main() and not double main()

Sorry buts that is all I can correct