mirror of
https://github.com/TheAlgorithms/Python.git
synced 2024-11-27 15:01:08 +00:00
b080a5e027
* Doctests in cocktail shaker sort
* import doctest
* print(f"{cocktail_shaker_sort(unsorted) = }")
Co-authored-by: John Law <johnlaw.po@gmail.com>
Co-authored-by: Christian Clauss <cclauss@me.com>
46 lines
1.3 KiB
Python
46 lines
1.3 KiB
Python
""" https://en.wikipedia.org/wiki/Cocktail_shaker_sort """
|
|
|
|
|
|
def cocktail_shaker_sort(unsorted: list) -> list:
|
|
"""
|
|
Pure implementation of the cocktail shaker sort algorithm in Python.
|
|
>>> cocktail_shaker_sort([4, 5, 2, 1, 2])
|
|
[1, 2, 2, 4, 5]
|
|
|
|
>>> cocktail_shaker_sort([-4, 5, 0, 1, 2, 11])
|
|
[-4, 0, 1, 2, 5, 11]
|
|
|
|
>>> cocktail_shaker_sort([0.1, -2.4, 4.4, 2.2])
|
|
[-2.4, 0.1, 2.2, 4.4]
|
|
|
|
>>> cocktail_shaker_sort([1, 2, 3, 4, 5])
|
|
[1, 2, 3, 4, 5]
|
|
|
|
>>> cocktail_shaker_sort([-4, -5, -24, -7, -11])
|
|
[-24, -11, -7, -5, -4]
|
|
"""
|
|
for i in range(len(unsorted) - 1, 0, -1):
|
|
swapped = False
|
|
|
|
for j in range(i, 0, -1):
|
|
if unsorted[j] < unsorted[j - 1]:
|
|
unsorted[j], unsorted[j - 1] = unsorted[j - 1], unsorted[j]
|
|
swapped = True
|
|
|
|
for j in range(i):
|
|
if unsorted[j] > unsorted[j + 1]:
|
|
unsorted[j], unsorted[j + 1] = unsorted[j + 1], unsorted[j]
|
|
swapped = True
|
|
|
|
if not swapped:
|
|
return unsorted
|
|
|
|
|
|
if __name__ == "__main__":
|
|
import doctest
|
|
|
|
doctest.testmod()
|
|
user_input = input("Enter numbers separated by a comma:\n").strip()
|
|
unsorted = [int(item) for item in user_input.split(",")]
|
|
print(f"{cocktail_shaker_sort(unsorted) = }")
|