Mountain Array

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OJ loves playing with arrays. One day he came across one array which he named as ‘mountain array’. A ‘mountain array’ is an array in which all the elements are pairwise distinct, the array size is odd (consider size as k) and first ⌊k/2⌋ elements in array are strictly increasing and next ⌊k/2⌋ elements in array are strictly decreasing, (⌊k/2⌋+1)th element is maximum. When OJ came

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solution.cppC++17

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