Exercises for June 1.

Please attempt the following exercises *in addition to* all 1-star exercises.
Mail your completed scripts to me (apt@cs.pdx.edu) by the beginning of class
on Tuesday 6/1.

Remember to work broadly as well as deeply. Don't get stuck on any one problem
for too long (especially not the extra problems towards the ends of the chapters).

Norm.v: everything marked "FILL IN HERE".