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)
Set up basic structure of code
Set up basic structure of code
