Binary search tree(test case not pssing)

#1

question:-https://hack.codingblocks.com/app/contests/1331/1067/problem
answer:-https://ide.codingblocks.com/s/262977
only one test is passing plz help me out

#2

Your code is correct and is passing all the test cases in my side.
Try to resubmit it and then check.

#3

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