Question: A peak item in an array is the item that is greater than its neighbors. If there are more than one peak item, simply return

A peak item in an array is the item that is greater than its neighbors. If there are more than one peak item, simply return one of them.

Input: [1, 5, 3, 2, 4, 0]

Output: 4

Input: [1, 2, 3, 4, 5, 6]

Output: 6

Input: [7, 6, 5, 4, 3, 2]

Output: 7

Describe a divide-and-conquer algorithm that solves this problem in O(log n) time where n is the size of the array.

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