Intervals and subarrays

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Chef Rahul likes those arrays that can be rearranged to form an interval of values - an increasing sequence where each element is greater than the previous by exactly one. For example: - Rahul likes the array [3, 6, 5, 4] as it can be re-arranged to [3, 4, 5, 6]. - Rahul doesn't like [1, 2, 4, 5] as no clear interval can be defined from these elements. Given an array a of length n, your ta

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solution.cppC++17

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