new_contents: def heap_sort(arr):
  	""" Heapsort
  		Complexity: O(n log(n))
  	"""
  	pass
  
  def heapify(arr):
  	pass
  
  array = [1,5,65,23,57,1232,-1,-5,-2,242,100,4,423,2,564,9,0,10,43,64]
  print(array)
  heap_sort(array)
  print(array)
subject: Set up basic structure of code