[plt-scheme] where to begin

Two sites that have interesting programming exercises
are the following:

Project Euler: http://projecteuler.net/
Problems: 
http://projecteuler.net/index.php?section=view

Rosetta Code:
http://www.rosettacode.org/wiki/Main_Page
Solutions by programming task: 
http://www.rosettacode.org/rosettacode/w/index.php?title=Category:Solutions_by_Programming_Task

Of the above two, I would first recommend Project
Euler because of the following reasons:

* Each problem is stated succinctly.

* It offers a list of problems listed in progressive
order of difficulty.

* Each problem has been designed according to the
"one-minute rule," "which means that although it may
take several hours to design a successful algorithm
with more difficult problems, an efficient
implementation will allow a solution to be obtained on
a modestly powered computer in less than one minute"
(courtesy of
http://projecteuler.net/index.php?section=about).

* For registered users, the site keeps track of the
number of users who have solved each problem.

Useful programming references for these exercises
would probably be the following (in addition to the
PLAI book
(http://www.cs.brown.edu/~sk/Publications/Books/ProgLangs/2007-04-26/)
already mentioned in another post):

How to Design Programs (a.k.a. "HtDP"):
http://www.htdp.org/

Concrete Abstractions:
http://gustavus.edu/+max/concrete-abstractions.html

You may also wish to consult the following reference
for language-specific questions on the Scheme
programming language (as opposed to questions on
programming in general):
Teach Yourself Scheme in Fixnum Days:
http://www.ccs.neu.edu/home/dorai/t-y-scheme/t-y-scheme.html

Eventually, once you are up to the challenge, you may
wish to try the following classic as well:

Structure and Interpretation of Computer Programs:
http://mitpress.mit.edu/sicp/

There is another interesting programming challenge I
discovered recently as well, but because I myself am
currently working on this project, please let me solve
it first before I post it here.

Benjamin L. Russell

--- Joseph Anthony Pasquale Holsten
<joseph at josephholsten.com> wrote:

> Hello everyone,
> I'm an undergrad. I have learning to do, and would
> like to get on  
> with it.
> 
> I want to get into the more esoteric side of scheme,
> and hopefully  
> strengthen my knowledge of current programming
> language research.  
> I've got the Lambda the Ultimate blog in my feed
> reader, but most of  
> the stuff is over my head. Coq and provability have
> been know to  
> cause my eyes to glaze over for 20+ minutes.
> 
> I thought I might port some of my current ruby code
> into scheme to  
> fiddle with any new techniques I find. It's a
> Genetic Programming  
> framework, but that's irrelevant, I just want a
> decent sized project  
> to see the effects of. I'm open to alternate
> projects so long as I  
> can wrap my head around them.
> 
> I'm looking forward to trying contracts and
> laziness, but am not sure  
> what else to play with. Anything else I should
> investigate?
> 
> Joseph Holsten
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