CSC161 2010F, Class 35: Multi-dimensional arrays

Overview:
* Questions on Exam 2
* Multi-dimensional arrays.
* Arrays of pointers vs. Arrays of arrays.
* K&R example, revisited.
* Lab.

Admin:
* EC for Professor Phillips' Friday evening concert.
* I've tried to combine questions on today's reading into 
  the lecture portion.
* Detour on SelfGov.
  * Please take advantage of resouces, like Ally training
* No reading for Wednesday!

New Qusetions on Exam 2

* Do we need pointers for problem 5?
  No.
* For problem 4, can the analyst be in the same file as shellsort
  Yes.  (You can do it elegantly using #ifdef and such, but you won't 
  lose credit if you don't.)
* What does #ifdef do?
  * Read the book.
* What do you mean by a general make rule?
  One using % style rules.
* In problem 4, how does do while work?
  In contrast to while, which does the test before the body, do-while
  does the test after the body.
  * In a while loop, you may do the body zero times;

The Insane Detour

[Most of this was done on the real whiteboard]

* Big O Notation
* The Traveling