The problems in this home work are from Jeff Erickson's notes.
  1. Exercise 20 of Lecture 1. (10 points)
  2. Exercise 23 (a) of Lecture 1. (10 points)
  3. Exercise 26 of Lecture 1. (9 points)
  4. Exercises 1(a), 1(c), and 1(e) of Lecture 3 (Backtracking). (21 points)

The homework is due in class on Thursday, February 15.