CSC 151.03, Class 41: Project presentations

Overview

• Preliminaries
  • Notes and news
  • Upcoming work
  • Extra credit
  • Questions
• Lightning presentations

News / Etc.

• I expect you all to attend class on Friday.
• Some of you will be presenting on Friday.

Upcoming work

• Exam 4
  • Exam due Thursday
  • Cover sheets due Friday
  • Epilogues due Friday
• Optional final during finals week (Wed 2pm, Thu 9am, or Fri 9am).

Extra credit (Academic/Artistic)

• CS Extras Thursday: Summer opportunities in CS.

Extra credit (Peer)

• Recitals Friday at 4:15 pm in Sebring-Lewis
• Dance final project today at 4:30 p.m. in the Wall Theatre.

Extra credit (Misc)

Other good things

• Stay healthy and sane during week 14.
• Musical: Next to Normal Friday at 7:30, Saturday and Sunday at 2:30. Tickets sold out at box office.

Questions

Any more hints on problem 2?

“Trust the magic recursion fairy.” You’ve determined that lst is a pair. You tally the rest with (nested-list-tall (cdr lst) pred?). What do you do next?

Any hints on problem 4?

Use the debugger.

Run it “by hand”

Can I have a more comprehensive test suite for problem 4?

Sure.

(check-equal? (next-larger 1/2 (vector 1 2 3 4 5 6)) 1)
(check-equal? (next-larger 1 (vector 1 2 3 4 5 6)) 2)
(check-equal? (next-larger 3/2 (vector 1 2 3 4 5 6)) 2)
(check-equal? (next-larger 2 (vector 1 2 3 4 5 6)) 3)
(check-equal? (next-larger 5/2 (vector 1 2 3 4 5 6)) 3)
(check-equal? (next-larger 3 (vector 1 2 3 4 5 6)) 4)
(check-equal? (next-larger 7/2 (vector 1 2 3 4 5 6)) 4)
(check-equal? (next-larger 4 (vector 1 2 3 4 5 6)) 5)
(check-equal? (next-larger 9/2 (vector 1 2 3 4 5 6)) 5)
(check-equal? (next-larger 5 (vector 1 2 3 4 5 6)) 6)
(check-equal? (next-larger 11/2 (vector 1 2 3 4 5 6)) 6)
(check-equal? (next-larger 6 (vector 1 2 3 4 5 6)) #f)
(check-equal? (next-larger 13/2 (vector 1 2 3 4 5 6)) #f)

Can’t you write something more concise?

Yes. But I thought this was clearer.

Since #4 can return false, do we have to switch to the hideous/wonderful and/or format?

No.

About the presentations

• I’ll use the clock.
• I realize that there will be some transition time.
• Do your best!
• Plan to take questions (and to ask questions).
• Please start with
  • Hi, we are group “…”
  • Our names are “…”
  • Our topic is “…”

Lightning presentations

You can volunteer or our mentors will choose.