CSC 151.01, Class 54: Project Assessment: Images and Code

Overview

• Preliminaries
  • Notes and news
  • Upcoming work
  • Extra credit
  • Exam questions
• Additional images
• Debriefing from image analysis
• Clever code - How’d you do that?
• Code crits - Why’d you do that?

News / Etc.

• Sit with your project partners!
• Grade reports distributed over the weekend.
• This week
  • Today: We talk about the remaining images and about your code.
  • Wednesday: We talk about the final and the class as a whole.
  • Friday: You fill out end-of-course evaluations and get your final PSA. We then go over the sample final.
• If you cannot make Friday’s class, please fill out the EOCE at the end of class on Wednesday.

Upcoming Work

• No more lab writeups.
• No more quizzes.
• One more reading: Sorting
• Exam 4 due TONIGHT
• Exam 4 epilogue due Wednesday

Extra credit (Academic/Artistic)

• CS Table, Tuesday: CS-related comic strips.
• CS Extras, Thursday: Exploring Algorithms with Design and Analysis Techniques.
• CSC 322 presentations, Friday, 1:30-3:30 p.m., Science 3819.

Extra credit (Peer)

• Baseball, Friday, 9:00 a.m.
• Monday, joint a cappella concert 4pm in Bucksbaum Rotunda with G-tones, Opposed to Toy Trains, Noteworthy

Other good things to do

• It’s week 14. Take good care of yourselves.

Questions

Why don’t we ever understand your jokes?

I’m 52 years old. We have different cultural referents.

For problem 1, do you have hints on writing the postconditions?

You might look at the postconditions we provided for vmap! to think about formalizing things.

For problem 1, do you have any hints?

When you overwrite an entry in the vector, you’ll lose the value there. Think of a way to temporarily save it.

For problem 2, Can I copy the code for select into a local helper?

Yes. But you will have to modify it.

Do you have hints on problem 3?

I would write a helper that reads sequences of word characters and puts them into a list.

Are there things you know that people screw up on problem 3?

What happens if there are multiple spaces at the beginning of the file?

What happens if the end-of-file object happens immediately after the last word?

How can I think about the whatzitdo?

What kinds of parameters does o have?

What does o return?

Why would anyone write the whatzitdo?

If you tell me what you think it does, and you’re right, I can give examples.

Do you have any hints on problem 6?

Write or find a procedure that finds the largest/smallest value in a vector.

Modify it to find the index of the largest/smallest value.

Generalize.

What’s your schedule for today?

10-1, meetings

1-3, office hours (2-3 are currently unbooked)

4-7, watch youngest play tennis

7-8, dinner

8-10:30, answer your questions

My code doesn’t work. Will you give me a hint to get moving forward?

Yes.

Will we get exam 4 back before the final?

Yes. My goal is to have grades to you on Monday so that you can decide whether or not to take the final.

Additional images

Debriefing from image analysis

Clever code - How’d you do that?

Code crits - Why’d you do that?