Where i am doing it wrong

#1
#2

hello @goelsparsh277
image
this should be
int op1=1+lh+rh; (+1 to include current node)

#3
#4

it is not shown in video but still not working

#5

image
this should be dia ,in place of diameter

#6

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.