Maximum XOR subarray

im totally confused in this question, can u give me a more simplified approach, i have checked geeksforgeeks but i cant understand that

so basically there’ll be two loops, one in which you’ll iterate through all elements
that outer loop indicates which element is the starting point of the subarray.
the inner loop: it’ll start from the current element in the outer loop and go till end.
and you’ll check the xor inside the loops, and maintain a max variable and update it when required

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