---
title: Eboard 40  Project presentations
number: 40
section: eboards
held: 2018-05-07
link: true
---
CSC 151.01, Class 40:  Project presentations
============================================

_Overview_

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

Preliminaries
-------------

### News / Etc.

* Sit where you'd like
* Grades distributed last night.  Email me if you have questions/comments.
* Food!

### Upcoming work

* [Exam 4](../exams/exam04) 
    * Exams due TOMORROW at 10:30 p.m..
    * Cover sheets due Wednesday.
    * Epilogues due Wednesday.
* Final: Thursday or Friday afternoon of Finals Week (2pm-5pm)
    * Sam should have tentative grades by Tuesday of finals' week

### Extra credit (Academic/Artistic)

* Presentation on quantifying effects of skill-based immigration.
  Wednesday at 4:15 in JRC 209.
* Stay tuned for info on a Friday presentation.

### Extra credit (Peer)

### Extra credit (Recurring peer)

* Listen to KDIC Wednesdays at 6pm - Witty banter with other 
  personalities and/or co-host.  Also Indian, Arabic, and Farsi music.  
  (Up to two units of extra credit.)
* Listen to KDIC Thursday at 7pm - Classic Rock.  (60's and 70's)
* Peer editing with SS.  Talk to SS about the details.  Make your
  English Lit more literate.

### Extra credit (Misc)

### Other good things

### Potentially less-good things

### Questions

_On problem 5, where we have to fix the code.  How do we think about fixing
something that's not broken._

* It *is* broken in that it is much less efficient than it can be.
* Look for procedures that need to iterate the whole list (or significant
  portions) and make sure they are not used in every (or most) recursive call.
* Look for identical code.
* Look for stupid decisions that lead to inefficiencies.
* Optional: Annotate the code as in problem 6 to see what's happening.

_How much should I change?_

* Everything that leads to inefficiencies.

_Are you okay with nested `cond`?_

* I generally find them ugly, but if they make logical sense it's fine.

_What should I do when I see different effects on car/cdr/cons in problem 6?_

* Up to you.  I'd generally look at which is worst.

_On problem 5, must the indices be in order from least to greatest?_

* Yes.  The unit tests check that.

  

Lightning presentations
-----------------------