Why does this code result in a error ??

Question

https://code.sololearn.com/cS0IXKacUxjQ/?ref=app

This is the code...
Please tell me what's wrong...

Answer 1

Well. in sololearn you can't make constructors and OOP properly since it doesn't support multiple files until you mix them. also, sololearn couldn't find that header MyClass.h.
Here's the correction:
https://code.sololearn.com/cFro3jtGA78a/?ref=app

Answer 2

I'm forget what is right...
Thank you for the answer Coding Kitty...