input: Write a function to return odd numbers in a list within the range [0, n).
  assert get_odd_numbers(10)==[1, 3, 5, 7, 9]
  assert get_odd_numbers(15)==[1, 3, 5, 7, 9, 11, 13]
  assert get_odd_numbers(8)==[1, 3, 5, 7]
output: def get_odd_numbers(n):
      return [i for i in range(n) if i % 2 != 0]