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7f04e5cd34
* spelling corrections * review * improved documentation, removed redundant variables, added testing * added type hint * camel case to snake case * spelling fix * review * python --> Python # it is a brand name, not a snake * explicit cast to int * spaces in int list * "!= None" to "is not None" * Update comb_sort.py * various spelling corrections in documentation & several variables naming conventions fix * + char in file name * import dependency - bug fix Co-authored-by: John Law <johnlaw.po@gmail.com>
50 lines
1.3 KiB
Python
50 lines
1.3 KiB
Python
"""
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This is a pure Python implementation of the bogosort algorithm,
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also known as permutation sort, stupid sort, slowsort, shotgun sort, or monkey sort.
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Bogosort generates random permutations until it guesses the correct one.
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More info on: https://en.wikipedia.org/wiki/Bogosort
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For doctests run following command:
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python -m doctest -v bogo_sort.py
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or
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python3 -m doctest -v bogo_sort.py
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For manual testing run:
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python bogo_sort.py
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"""
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import random
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def bogo_sort(collection):
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"""Pure implementation of the bogosort algorithm in Python
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:param collection: some mutable ordered collection with heterogeneous
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comparable items inside
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:return: the same collection ordered by ascending
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Examples:
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>>> bogo_sort([0, 5, 3, 2, 2])
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[0, 2, 2, 3, 5]
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>>> bogo_sort([])
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[]
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>>> bogo_sort([-2, -5, -45])
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[-45, -5, -2]
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"""
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def is_sorted(collection):
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if len(collection) < 2:
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return True
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for i in range(len(collection) - 1):
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if collection[i] > collection[i + 1]:
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return False
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return True
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while not is_sorted(collection):
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random.shuffle(collection)
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return collection
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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(bogo_sort(unsorted))
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