Not able to understand the question

#1

Not able to understand the meaning of xor and maximum xor

#2

Hi @shivank.agg.sa xor is exclusive or (bitwise).
When you xor 2 bits if they are different then resultant bit will be 1 else 0. You need to find the maximum xor.

Refer the code

#3

hi @shivank.agg.sa whatsa your email, tour doubt is not reaching TA