Unable to understand the question

#1

can you explain the question

#2

What is not understood
You are given an array and Q queries of two types.
Type 0: Given a number x , insert the number at the last of the array.
Type 1: Given a number X and two integers L, R, Find a number Y in the range L, R to maximize X ^ Y

if you have type 0 then inset no in array
if type 1 then find max xor of given no with array elements in the given range