old_contents: from random import randint
  import sys
  
  def count(arr):
  	n = len(arr)
  
  	if n == 1:
  		return 0
  
  	else:
  		first_half = count(arr[:n/2])
  		second_half = count(arr[n/2:])
  		split = count_split(arr)
  		return first_half + second_half + split
  
  
  def count_split(arr):
  	return 0
  
  def main(arr_len):
  	test_arr = [randint(0,arr_len) for n in range(arr_len)]
  	return count(test_arr)
  
  if __name__ == '__main__':
  	try:
  		arr_len = int(sys.argv[1])
  	except (IndexError, ValueError):
  		print 'Format: python merge-sort.py <array-length>'
  
  	print main(arr_len)
new_contents: from random import randint
  import sys
  
  def sort_and_count(arr):
  	n = len(arr)
  
  	if n == 1:
  		return 0
  
  	else:
  		first_half = sort_and_count(arr[:n/2])
  		second_half = sort_and_count(arr[n/2:])
  		split = merge_and_count_split(arr)
  		return first_half + second_half + split
  
  
  def merge_and_count_split(arr):
  	return 0
  
  def main(arr_len):
  	test_arr = [randint(0,arr_len) for n in range(arr_len)]
  	return sort_and_count(test_arr)
  
  if __name__ == '__main__':
  	try:
  		arr_len = int(sys.argv[1])
  	except (IndexError, ValueError):
  		print 'Format: python merge-sort.py <array-length>'
  
  	print main(arr_len)
subject: Rename functions to include sorting and merging