Any system that have different coding and is not available in this app?

Question

https://code.sololearn.com/WI1o0IvTQhwK/?ref=app
https://code.sololearn.com/WsXWczN2ZQyX/?ref=app
https://code.sololearn.com/W3BOdHHOPOP2/?ref=app
https://code.sololearn.com/WyJfKgSGNw7T/?ref=app
https://code.sololearn.com/c3764yI7Ri8X/?ref=app
https://code.sololearn.com/WIXS7Otl9I3K/?ref=app

Answer 1

How are those codes related to your question?

Answer 2

Hmmm... just wanted to know😁