mirror of
https://github.com/TheAlgorithms/Python.git
synced 2024-11-30 16:31:08 +00:00
90db98304e
* fixed: spelling nonegative -> non-negative * fixed: spelling transpostiion -> transposition * fixed: spelling topolical -> topological * fixed: spelling sufix -> suffix
34 lines
888 B
Python
34 lines
888 B
Python
"""
|
|
Source: https://en.wikipedia.org/wiki/Odd%E2%80%93even_sort
|
|
|
|
This is a non-parallelized implementation of odd-even transposition sort.
|
|
|
|
Normally the swaps in each set happen simultaneously, without that the algorithm
|
|
is no better than bubble sort.
|
|
"""
|
|
|
|
|
|
def odd_even_transposition(arr: list) -> list:
|
|
"""
|
|
>>> odd_even_transposition([5, 4, 3, 2, 1])
|
|
[1, 2, 3, 4, 5]
|
|
|
|
>>> odd_even_transposition([13, 11, 18, 0, -1])
|
|
[-1, 0, 11, 13, 18]
|
|
|
|
>>> odd_even_transposition([-.1, 1.1, .1, -2.9])
|
|
[-2.9, -0.1, 0.1, 1.1]
|
|
"""
|
|
arr_size = len(arr)
|
|
for _ in range(arr_size):
|
|
for i in range(_ % 2, arr_size - 1, 2):
|
|
if arr[i + 1] < arr[i]:
|
|
arr[i], arr[i + 1] = arr[i + 1], arr[i]
|
|
|
|
return arr
|
|
|
|
|
|
if __name__ == "__main__":
|
|
arr = list(range(10, 0, -1))
|
|
print(f"Original: {arr}. Sorted: {odd_even_transposition(arr)}")
|