Lecture 23 --- Exercises
========================

Solutions to the problems below must be sent to Submitty for
automatic scoring.   A separate file must submitted for each problem.
Start with the files available on the Piazza resource page as
*lec23_ex_files.zip*.  Solutions must be submitted by 4 pm on Friday,
December 2. 

#. Modify the code in ``prob1.py`` to generate a new list where all
   values are replaced by their absolute values. You must use ``map``,
   but there is no need for a lambda function.

#. Modify the code in ``prob2.py`` to convert a list of Fahrenheit
   temperatures to a list of Celsius temperatures.  You must use both
   ``map`` and a ``lambda`` function.