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Bitonic Array Maximum (easy)
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Problem Statement

Find the maximum value in a given Bitonic array. An array is considered bitonic if it is first monotonically increasing and then monotonically decreasing.

In other words, a bitonic array starts with a sequence of increasing elements, reaches a peak element, and then follows with a sequence of decreasing elements. The peak element is the maximum value in the array.

Example 1:

Input: [1, 3, 8, 12, 4, 2]
Output: 12
Explanation: The maximum number in the input bitonic array is '12'.

Example 2:

Input: [3, 8, 3, 1]
Output: 8

Example 3:

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