Python Program for BogoSort or Permutation Sort
BogoSort also known as permutation sort, stupid sort, slow sort, shotgun sort or monkey sort is a particularly ineffective algorithm based on generate and test paradigm. The algorithm successively generates permutations of its input until it finds one that is sorted.(Wiki)
For example, if bogosort is used to sort a deck of cards, it would consist of checking if the deck were in order, and if it were not, one would throw the deck into the air, pick the cards up at random, and repeat the process until the deck is sorted.
PseudoCode:
while not Sorted(list) do
shuffle (list)
done# Python program for implementation of Bogo Sort import random # Sorts array a[0..n-1] using Bogo sort def bogoSort(a): n = len(a) while (is_sorted(a)== False): shuffle(a) # To check if array is sorted or not def is_sorted(a): n = len(a) for i in range(0, n-1): if (a[i] > a[i+1] ): return False return True # To generate permuatation of the array def shuffle(a): n = len(a) for i in range (0,n): r = random.randint(0,n-1) a[i], a[r] = a[r], a[i] # Driver code to test above a = [3, 2, 4, 1, 0, 5] bogoSort(a) print("Sorted array :") for i in range(len(a)): print ("%d" %a[i]), |
Output:
Sorted array : 0 1 2 3 4 5