Some semesters there are questions from previous exams that are not
directly relevant or not good practice for that semester's exam.

As you work the old exams, also pay attention to the rules for
the exam in any given semester. Open-versus-closed book informs many
aspects of problem design.

F21:
  4     - data structures

F22:
  no exclusions

F23:
  no exclusions

S21:
  6     - data structures

S22:
  no exclusions

S23:
  no exclusions

S24:
  no exclusions