Mountain Peaks

Undefined

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A computerized geographic information system represents the profile of a mountain through a sequence of integers, where no two consecutive numbers are the same. A peak is detected as three consecutive numbers where the middle number is bigger than the other two or two consecutive numbers at left/right end of a sequence where the left/rightmost number is bigger.

example

Your program must analyze this sequence to determine whether the mountain represented has more than one peak (return True). If not enough data or just a single peak - return False.

Input: List of integers (int).

Output: Logical value (bool).

Examples:

assert check_peaks([2, 3, 5, 6, 7, 5, 4, 2]) == False
assert check_peaks([2, 3, 6, 5, 4, 6, 3, 2]) == True
assert check_peaks([1, 2, 3, 2, 1]) == False
assert check_peaks([1, 3, 2, 1, 2, 3, 1]) == True

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