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38 lines
946 B
Python
38 lines
946 B
Python
# https://leetcode.com/problems/monotonic-array/
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def is_monotonic(nums: list[int]) -> bool:
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"""
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Check if a list is monotonic.
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>>> is_monotonic([1, 2, 2, 3])
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True
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>>> is_monotonic([6, 5, 4, 4])
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True
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>>> is_monotonic([1, 3, 2])
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False
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>>> is_monotonic([1,2,3,4,5,6,5])
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False
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>>> is_monotonic([-3,-2,-1])
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True
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>>> is_monotonic([-5,-6,-7])
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True
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>>> is_monotonic([0,0,0])
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True
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>>> is_monotonic([-100,0,100])
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True
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"""
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return all(nums[i] <= nums[i + 1] for i in range(len(nums) - 1)) or all(
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nums[i] >= nums[i + 1] for i in range(len(nums) - 1)
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)
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# Test the function with your examples
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if __name__ == "__main__":
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# Test the function with your examples
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print(is_monotonic([1, 2, 2, 3])) # Output: True
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print(is_monotonic([6, 5, 4, 4])) # Output: True
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print(is_monotonic([1, 3, 2])) # Output: False
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import doctest
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doctest.testmod()
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