Python/sorts/bubble_sort.py
Ankur Chattopadhyay 7592cba417 psf/black code formatting (#1421)
* added sol3.py for problem_20

* added sol4.py for problem_06

* ran `black .` on `\Python`
2019-10-22 19:13:48 +02:00

44 lines
1.2 KiB
Python

def bubble_sort(collection):
"""Pure implementation of bubble sort algorithm in Python
:param collection: some mutable ordered collection with heterogeneous
comparable items inside
:return: the same collection ordered by ascending
Examples:
>>> bubble_sort([0, 5, 2, 3, 2])
[0, 2, 2, 3, 5]
>>> bubble_sort([])
[]
>>> bubble_sort([-2, -45, -5])
[-45, -5, -2]
>>> bubble_sort([-23, 0, 6, -4, 34])
[-23, -4, 0, 6, 34]
>>> bubble_sort([-23, 0, 6, -4, 34]) == sorted([-23, 0, 6, -4, 34])
True
"""
length = len(collection)
for i in range(length - 1):
swapped = False
for j in range(length - 1 - i):
if collection[j] > collection[j + 1]:
swapped = True
collection[j], collection[j + 1] = collection[j + 1], collection[j]
if not swapped:
break # Stop iteration if the collection is sorted.
return collection
if __name__ == "__main__":
import time
user_input = input("Enter numbers separated by a comma:").strip()
unsorted = [int(item) for item in user_input.split(",")]
start = time.process_time()
print(*bubble_sort(unsorted), sep=",")
print(f"Processing time: {time.process_time() - start}")