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master
sorts/shell_sort.py
40 строк
1 KB
Tan Kai Qun, Jeremy
Add typing (#9652)
04 окт 2023, 05:06
Не верифицирован
04 окт 2023, 05:06
a7133ec
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""" https://en.wikipedia.org/wiki/Shellsort#Pseudocode """ def shell_sort(collection: list[int]) -> list[int]: """Pure implementation of shell sort algorithm in Python :param collection: Some mutable ordered collection with heterogeneous comparable items inside :return: the same collection ordered by ascending >>> shell_sort([0, 5, 3, 2, 2]) [0, 2, 2, 3, 5] >>> shell_sort([]) [] >>> shell_sort([-2, -5, -45]) [-45, -5, -2] """ # Marcin Ciura's gap sequence gaps = [701, 301, 132, 57, 23, 10, 4, 1] for gap in gaps: for i in range(gap, len(collection)): insert_value = collection[i] j = i while j >= gap and collection[j - gap] > insert_value: collection[j] = collection[j - gap] j -= gap if j != i: collection[j] = insert_value return collection if __name__ == "__main__": from doctest import testmod testmod() user_input = input("Enter numbers separated by a comma:\n").strip() unsorted = [int(item) for item in user_input.split(",")] print(shell_sort(unsorted))