CSC 151 2019S, Class 15: Dictionaries and hash tables
Overview
- Preliminaries
- Notes and news
- Upcoming work
- Extra credit
- Questions
- Lab
Preliminaries
News / Etc.
- Mentor sessions Wednesday 8-9 p.m., Thursday 8-9 p.m., Sunday 5-6 p.m.
- I apologize for the time it is taking to respond to email; I hope
to do a bit better today.
- I hope to get exams back to you today.
Upcoming work
- Reading for Wednesdays
- Assignment 6 due next Tuesday.
- Your partner is your partner from today’s class.
- Flash cards due TONIGHT at 8:00 p.m.
- Covers Wednesday/Friday/Monday classes
- Lab writeup due before class Friday
- Exercises: TBD
- Subject: CSC 151.01 Writeup for Class 15 (YOUR NAMES)
- To: csc151-01-grader@grinnell.edu
- Quiz Friday: Randomness and Local Bindings
I would certainly appreciate suggestions of other extra credit activities
(preferably via email).
- 30 Minutes of Mindfulness at SHACS every Monday 4:15-4:45
- Any organized exercise. (See previous eboards for a list.)
- 60 minutes of some solitary self-care activities that are unrelated to
academics or work. Your email reflection must explain how the activity
contributed to your wellness.
- 60 minutes of some shared self-care activity with friends. Your email
reflection must explain how the activity contributed to your wellness.
Other good things
- Neverland players this weekend (Friday 8:30, Sat 2:00 and 7:30, and
Sun 2:00)
Questions
Are you having fun at the conference?
I’m seeing old friends, which is nice.
What is car?
A procedure that extracts the first element of a list.
You can think of it as (section list-ref <> 0).
What is cdr?
A procedure that removes the first element of the list.
You can think of it as (section drop <> 1).
What is cons?
A procedure that adds something to the start of a list.
When are we getting the exam back?
As soon as I can get it to you.
Will you let me know my grade before then?
No.
You keep talking to us about wellness. Are you taking care of yourself?
Yes.
Lab