Python/sorts/Odd-Even_transposition_single-threaded.py
CharlesRitter 6e894ba3e8 Odd-Even Transposition Sort (#769)
* -Added a single-threaded implementation of odd-even transposition sort.

This is a modified bubble sort meant to work with multiple processors.
Since this is running on a single thread, it has the same running time
as bubble sort.

* -Added a parallel implementation of Odd-Even Transposition sort

This implementation uses multiprocessing to perform the swaps
at each step of the algorithm simultaneously.
2019-06-07 23:38:43 +08:00

33 lines
713 B
Python

"""
This is a non-parallelized implementation of odd-even transpostiion sort.
Normally the swaps in each set happen simultaneously, without that the algorithm
is no better than bubble sort.
"""
def OddEvenTransposition(arr):
for i in range(0, len(arr)):
for i in range(i % 2, len(arr) - 1, 2):
if arr[i + 1] < arr[i]:
arr[i], arr[i + 1] = arr[i + 1], arr[i]
print(*arr)
return arr
#creates a list and sorts it
def main():
list = []
for i in range(10, 0, -1):
list.append(i)
print("Initial List")
print(*list)
list = OddEvenTransposition(list)
print("Sorted List\n")
print(*list)
if __name__ == "__main__":
main()