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* gnome_sort : type hints, docstring, doctests * !Gadeimnoprstu Co-authored-by: Christian Clauss <cclauss@me.com>
57 lines
1.4 KiB
Python
57 lines
1.4 KiB
Python
"""
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Gnome Sort Algorithm (A.K.A. Stupid Sort)
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This algorithm iterates over a list comparing an element with the previous one.
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If order is not respected, it swaps element backward until order is respected with
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previous element. It resumes the initial iteration from element new position.
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For doctests run following command:
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python3 -m doctest -v gnome_sort.py
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For manual testing run:
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python3 gnome_sort.py
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"""
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def gnome_sort(lst: list) -> list:
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"""
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Pure implementation of the gnome sort algorithm in Python
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Take some mutable ordered collection with heterogeneous comparable items inside as
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arguments, return the same collection ordered by ascending.
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Examples:
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>>> gnome_sort([0, 5, 3, 2, 2])
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[0, 2, 2, 3, 5]
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>>> gnome_sort([])
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[]
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>>> gnome_sort([-2, -5, -45])
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[-45, -5, -2]
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>>> "".join(gnome_sort(list(set("Gnomes are stupid!"))))
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' !Gadeimnoprstu'
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"""
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if len(lst) <= 1:
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return lst
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i = 1
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while i < len(lst):
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if lst[i - 1] <= lst[i]:
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i += 1
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else:
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lst[i - 1], lst[i] = lst[i], lst[i - 1]
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i -= 1
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if i == 0:
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i = 1
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return lst
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if __name__ == "__main__":
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user_input = input("Enter numbers separated by a comma:\n").strip()
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unsorted = [int(item) for item in user_input.split(",")]
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print(gnome_sort(unsorted))
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