input: Write a function to generate a two-dimensional array filled with zeros given the number of rows and columns. Return the generated array. If the input for row or column is zero, return an empty list.
  
  def generate_zeros_array(row, col):
      return [[0] * col for _ in range(row)]
  
  assert generate_zeros_array(3, 3) == [[0, 0, 0], [0, 0, 0], [0, 0, 0]]
  assert generate_zeros_array(2, 4) == [[0, 0, 0, 0], [0, 0, 0, 0]]
  assert generate_zeros_array(0, 3) == []
  assert generate_zeros_array(3, 0) == [[], [], []]
  assert generate_zeros_array(0, 0) == []
output: def generate_zeros_array(row, col):
      if row == 0 or col == 0:
          return []
      return [[0] * col for _ in range(row)]