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9 lines
317 B
Python
9 lines
317 B
Python
def is_sorted_and_how(arr):
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last = "ascending" if arr[0] <= arr[1] else "descending"
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for i in range(1, len(arr) - 1):
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if arr[i] <= arr[i + 1] and last != "ascending":
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return "no"
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elif arr[i] >= arr[i + 1] and last != "descending":
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return "no"
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return "yes, " + last
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