Graph is a tree or not using BFS

#1

My code giving incorrect output plz make corrections:

#2

@coderajay03 the True you are returning at line 42 should be out of while loop else your while loop will run only once.

#3

I hope I’ve cleared your doubt. I ask you to please rate your experience here
Your feedback is very important. It helps us improve our platform and hence provide you
the learning experience you deserve.

On the off chance, you still have some questions or not find the answers satisfactory, you may reopen
the doubt.