Please check the code

#1

this code is passing provided test cases in que after that also all the test cases are wrong after submission

#2

Hi aditya,
Your logic is not correct for this question.
You can first find xor of x and y.
Then try to maximise this xor by applying some operation.
Please let me know if you need full approach and code.

#3

please explain the approach

#4

can’t understand the provided hint