Count Subarrays with given XOR

Given an array of integers, the task is to count the number of subarrays where the XOR of their elements equals a given number k. Two approaches are discussed: a Naive approach with O(n^2) time complexity, using two nested loops to check all subarrays, and an efficient approach with O(n) time complexity, utilizing Hash Map and Prefix XOR. The efficient approach updates the prefix XOR and uses the XOR properties to find matching subarrays.

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