• New partners for today! (Same partners on Friday.)

Overview

• Preliminaries.
  • Admin.
  • Upcoming Work.
  • Extra Credit.
  • Questions.
• Lab.

Preliminaries

Admin

• We will continue crits of your artwork on Friday.
• I'll be leaving class at 10:30 for a personal event. I trust our mentors to finish up with class.
• Review sessions Thursday at 10am, Thursday at 8pm.

Upcoming Work

• No reading for Friday.
• Today's Lab writeup (due Monday)
  • Email to grader-151-01@cs.grinnell.edu
  • Subject: CSC 151 Lab Writeup Class 51 (Your Names)
  • Exercises:
• Quiz Friday: Analysis, Association Lists, Binary Search.
• Exam 4 prologue due Friday, Dec. 4.
• Exam 4 due Monday, Dec. 7. Email it to me as an attachment. Use your random number form last time, or grab a new one.
• Exam 4 cover sheet due Tuesday, Dec. 8.
• Exam 4 epilogue due Tuesday, Dec. 8.

Extra Credit Opportunities

• If possible, send me these in advance.

Academic

• Any visit to the current show in the Faulconer gallery.
• Campus Town Hall on Student Well-Being, Noon or 7:30 p.m. on Wednesday, December 2 in JRC 101. TODAY!
• Eliza Harrison presents Early Sonia Delaunay: The Avant-Garde at Home, an Art History MAP under the direction of Professor Anger. 4:15 pm, Wednesday, December 2nd, Bucksbaum 242 with coffee and fruit. TODAY!
• Future of the Libraries Talk, December 3, Noon, JRC 101. TOMORROW!
• Human Computers at NASA, 8 p.m., December 3, ARH 302 TOMORROW!
• CS Extras, Thursday, Summer Research at UMich, 4:15 p.m. 3821. TOMORROW!

Peer Support

• Dance Ensemble, Friday and Saturday at 7:30 p.m.
• Women's Basketball vs. St. Norbert, Dec. 5 at 3:00 p.m.
• One-act Festival Dec. 5 at 2pm and & Dec 6 at 7 p.m.
• Choir Concert, Dec. 6 at 2pm in Herrick.
• Sweater party, Saturday at 9pm. Wear ugly christmas sweaters and dance. Will include appropriate and inappropriate beverages.
• Deshowber/Showcember, Friday, Gardner. 9pm and beyond, but go to Dance recital first.

Regular Peer Support

• Pals of PALS, pals@grinnell.edu, normally Saturday at 7:45 am (breakfast included; felines only), and Mondays at 4:45. Requires sign up in advance. MORE HELP NEEDED!
• Socrates Cafe', Saturdays, Younker, 2pm.
• Pun Club, Saturdays, 4pm, Way over Younker.

Misc.

• Sub free this weekend.

Upcoming Peer Support

• Women's Basketball vs. Carroll, Dec. 12 at 3:00 p.m.

Other Good Things (No Extra Credit)

• Swim Meet December 4/5.
• Jingle Bell Holiday December 4. I may not be there (swim meet), I'll try to find a way to treat you to tenderloins / chicken / potatoes.

Questions

Are you really okay that I take an extension on the exam? My Tutorial prof has fifteen things due next week.

Yes. But I won't have grading done by Friday. You still have to do the prologue by this Friday. Let me know how much of an extension you want.

Can I take the final exam during Curtsinger's final time?

Yes.

When is it?

Friday, 2-5 p.m.

Really?

Yes.

How about another time?

Sure. I'd love to write a fourth exam. (More seriously, I am happy to arrange another exam time.)

Do we need recursion to write tree-map?

As far as I know, the only way to solve it is with recursion.

Helper recursion, with a "so-far"?

NO! Use direct recursion with trees.

display-file seems really trivial if we can call read-file. Is that okay?

Yes.

Sam, you may be nice, but you're an idiot. We can't use the map procedure you wrote for some of the problems.

Whoops. I'll fix it soon. And you are now at 7 units of extra credit.

Lab

On exercise 1, when you insert the code to display stuff, do it within the kernel, right above the if.

Writeup: Exercise 4. It will be much easier if you do 1-3.