PYTHON

2. Write a function doubles that takes as a list of integers as a parameter and returns a list that contains all values in the given list that are exactly twice the previous value in the list. If the list is empty or there are no values that are double the value of their predecessor, then the function returns an empty list. The list provided as a parameter should not be changed. Note that the first item in the list will never be printed since it does not have a predecessor in the list. Sample usage: >>> doubles( [4,8,-12,-24,48,3,6,12,24,2]) [8, -24, 6, 12, 24] >>> doubles([1,2,3,4,5]) [2] >>> doubles([]) [] >>>