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Aug 4, 2016
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52 changes: 52 additions & 0 deletions sorts/bogosort.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,52 @@
"""
This is pure python implementation of bogosort algorithm
For doctests run following command:
python -m doctest -v bogosort.py
or
python3 -m doctest -v bogosort.py
For manual testing run:
python bogosort.py
"""

from __future__ import print_function
import random

def bogosort(collection):
"""Pure implementation of bogosort algorithm in Python
:param collection: some mutable ordered collection with heterogeneous
comparable items inside
:return: the same collection ordered by ascending
Examples:
>>> bogosort([0, 5, 3, 2, 2])
[0, 2, 2, 3, 5]
>>> bogosort([])
[]
>>> bogosort([-2, -5, -45])
[-45, -5, -2]
"""

def isSorted(collection):
if len(collection) < 2:
return True
for i in range(len(collection)-1):
if collection[i] > collection[i+1]:
return False
return True

while not isSorted(collection):
random.shuffle(collection)
return collection

if __name__ == '__main__':
import sys

# For python 2.x and 3.x compatibility: 3.x has not raw_input builtin
# otherwise 2.x's input builtin function is too "smart"
if sys.version_info.major < 3:
input_function = raw_input
else:
input_function = input

user_input = input_function('Enter numbers separated by coma:\n')
unsorted = [int(item) for item in user_input.split(',')]
print(bogosort(unsorted))