Then also im not getting o/p

@kishoretaru these were the mistakes:

  1. pop() the front node in buildtree
  2. in righttreeview call for children nodes, you forgot to pass maxlevel parameter
    works fine now
    https://ide.codingblocks.com/s/288222

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.