input: Write a function to print out an array backwards. The function should take an array as input and print each element of the array in reverse order.
  def print_reverse_array(arr):
   for i in range(len(arr)-1, -1, -1): 
    print(arr[i])
    
  assert print_reverse_array([1, 2, 3, 4, 5])
  # Output should be:
  # 5
  # 4
  # 3
  # 2
  # 1
  
  assert print_reverse_array([10, 20, 30])
  # Output should be:
  # 30
  # 20
  # 10
  
  assert print_reverse_array([])
  # Output should be:
  # (No output since the array is empty)
output: def print_reverse_array(arr):
   for i in range(len(arr)-1, -1, -1): 
    print(arr[i])