Run error in 4 test cases

#1

here is my code:


pls check it for run error.

#2

hello @Garvit012
image
add this if statement in ur code.

ur updated code->

#3

Thanks for the suggestion but can you explain why do we need it since in the question it says the node to be deleted will definitely be in the tree

#4

probably some test cases are not following this constriant->

otherwise ur code should work fine without adding that if statement

#5

okay thankyou for your help