[Quicksort]Added shuffling of input

Author: miczal

sorts/quick_sort.py

@@ -10,6 +10,12 @@
 python quick_sort.py
 """
 from __future__ import print_function
+from random import shuffle
+
+
+def sort(collection):
+    shuffle(collection)
+    return quick_sort(collection)
 
 
 def quick_sort(collection):
@@ -58,4 +64,4 @@ def quick_sort(collection):
 
     user_input = input_function('Enter numbers separated by coma:\n')
     unsorted = [int(item) for item in user_input.split(',')]
-    print(quick_sort(unsorted))
+    print(sort(unsorted))