Complete the exercises as described in a5.arr.
This is a partner assignment. That is, unlike in previous assignments, you may work closely with another
person on the code that you write. Only one partner in a partnernship need submit. However, you must indicate in your
README the names of both partners so we can assign grades correctly.
Your grade on A5 will replace your lowest homework grade so far (unless your A5 grade is lowest). This may be especially
helpful if you've not turned in an assignment, in which case the 0/4 will be replaced with something hopefully a bit
higher, like a 3/4 or 4/4 if you do well on A5.