Why my code doesn't give an error ..?I execute it in online compiler it gives error.

Question

I used three classes along with three valid main declarations..
https://code.sololearn.com/cSwqurC9A9WL/?ref=app

Answer 1

You can say it's a feature of Sololearn's compiler..
Check this thread for more info👇
https://www.sololearn.com/Discuss/2415231/?ref=app

Answer 2

Minho 🇰🇷 thanks