Question: A = [1, 2, 3, 1] K = 3 Input 2: A = [1, 2, 5] K = 3 Example Output Output 1: Output 2:

A = [1, 2, 3, 1] K = 3 Input 2: A = [1, 2, 5] K = 3 Example Output Output 1: Output 2: 1 Example Explanation Explanation 1: Xor of every 3 consecutive elements is already 0. No changes required. Explanation 2: We can change the first element to 7, so the array becomes [7, 2, 5] and Xor of every 3 consecutive elements is 0 now. Hence, number of changes required is 1

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