[Haskell-beginners] Help with improving a program

[Francesco Ariis]

On Wed, Jul 09, 2014 at 11:02:14PM -0300, Marcelo Lacerda wrote:
> Hi I'm just starting with haskell and want some help with it.
> 
> I tried to solve the Store Credit[1] problem from google code jam just
> to practice, the result was a slow code[2] that I find hard to read.
> 
> Can you guys give me some directions on how to improve it?
> 
> [1] - https://code.google.com/codejam/contest/351101/dashboard#s=p0
> [2] - http://pastebin.com/jNGxGP5H
> 

Don't know about efficiency, but I never liked (!!). Maybe computing all
pairs+positions in advance using |zip| would be a little better?

I attach my .hs; code is quite caveman-Haskell, but hopefully the idea is clear
-F

-------------- next part --------------
A non-text attachment was scrubbed...
Name: store.hs
Type: text/x-haskell
Size: 601 bytes
Desc: not available
URL: <http://www.haskell.org/pipermail/beginners/attachments/20140710/3d8e0670/attachment.hs>