Comments on: 20 Intermediate Haskell Exercises http://blog.tmorris.net/20-intermediate-haskell-exercises/ The weblog of Tony Morris Wed, 07 Jan 2009 00:12:17 +0000 http://wordpress.org/?v=2.6 By: BMeph http://blog.tmorris.net/20-intermediate-haskell-exercises/#comment-16366 BMeph Wed, 24 Sep 2008 23:01:45 +0000 http://blog.tmorris.net/?p=335#comment-16366 These were fun. I found 13 (apple)'s definition the toughest one to do, and I'm still not sure if it doesn't have a simpler definition than what I did. The same for the State s ones, 19 and 20. They look a little clunky, , but then, so does (State s a) itself. Don't even get me started on following the Lefts and Rights for the Misty forms of (EitherLeft t) and (EitherRight t). Still, it was fun to try out - thanks! :) These were fun. I found 13 (apple)’s definition the toughest one to do, and I’m still not sure if it doesn’t have a simpler definition than what I did. The same for the State s ones, 19 and 20. They look a little clunky, , but then, so does (State s a) itself. Don’t even get me started on following the Lefts and Rights for the Misty forms of (EitherLeft t) and (EitherRight t). Still, it was fun to try out - thanks! :)

]]> By: whoa, haskell people is smizzle « Honest Lee’s Blog http://blog.tmorris.net/20-intermediate-haskell-exercises/#comment-16340 whoa, haskell people is smizzle « Honest Lee’s Blog Wed, 24 Sep 2008 15:44:21 +0000 http://blog.tmorris.net/?p=335#comment-16340 [...] via http://blog.tmorris.net/20-intermediate-haskell-exercises/ [...] [...] via http://blog.tmorris.net/20-intermediate-haskell-exercises/ [...]

]]> By: rog http://blog.tmorris.net/20-intermediate-haskell-exercises/#comment-16227 rog Mon, 22 Sep 2008 11:28:48 +0000 http://blog.tmorris.net/?p=335#comment-16227 daniel: i may be wrong here, but i think the idea is to produce any solution that will type check. so if you get it through the compiler, you've done it! no execution of code necessary. daniel: i may be wrong here, but i think the idea is to produce any solution that will type check. so if you get it through the compiler, you’ve done it! no execution of code necessary.

]]> By: Dudeinator http://blog.tmorris.net/20-intermediate-haskell-exercises/#comment-16211 Dudeinator Mon, 22 Sep 2008 03:41:00 +0000 http://blog.tmorris.net/?p=335#comment-16211 These are great. Helped me familiarize myself with some of the standard libraries, and I had fun at the same time. After I finished each one I compared my implementation to the one in the standard libraries and of course it was almost always simpler, and some times perplexing. These are great. Helped me familiarize myself with some of the standard libraries, and I had fun at the same time. After I finished each one I compared my implementation to the one in the standard libraries and of course it was almost always simpler, and some times perplexing.

]]> By: Tony Morris http://blog.tmorris.net/20-intermediate-haskell-exercises/#comment-16130 Tony Morris Sun, 21 Sep 2008 08:07:19 +0000 http://blog.tmorris.net/?p=335#comment-16130 None. If it is too simple, then great. None. If it is too simple, then great.

]]> By: BMeph http://blog.tmorris.net/20-intermediate-haskell-exercises/#comment-16119 BMeph Sun, 21 Sep 2008 07:16:14 +0000 http://blog.tmorris.net/?p=335#comment-16119 So, how much of the Prelude are we supposed to ignore? Some of the implementations get to simple, otherwise... So, how much of the Prelude are we supposed to ignore? Some of the implementations get to simple, otherwise…

]]> By: Daniel Waechter http://blog.tmorris.net/20-intermediate-haskell-exercises/#comment-15759 Daniel Waechter Fri, 19 Sep 2008 18:33:20 +0000 http://blog.tmorris.net/?p=335#comment-15759 Some unit tests would be handy to check our work. Just a thought. Some unit tests would be handy to check our work. Just a thought.

]]> By: rog http://blog.tmorris.net/20-intermediate-haskell-exercises/#comment-15723 rog Fri, 19 Sep 2008 16:03:48 +0000 http://blog.tmorris.net/?p=335#comment-15723 thanks. i enjoyed those, although the "relative difficulty" didn't predict to any degree how long i took to complete each one. FWIW the one that took me longest was probably no. 12, and then things sped up as i struck my forehead and realised that Misty was Monad. no. 16 was probably second longest (getting the bonus), and some (e.g. 17 and 18) were very quick as almost identical to previous ones. the final "harder" ones were not too hard at all, probably because they felt a bit more "concrete". all quite useful for someone trying to get up to speed on this haskell stuff, i.e. me! thanks. i enjoyed those, although the “relative difficulty” didn’t predict to any degree how long i took to complete each one. FWIW the one that took me longest was probably no. 12, and then things sped up as i struck my forehead and realised that Misty was Monad. no. 16 was probably second longest (getting the bonus), and some (e.g. 17 and 18) were very quick as almost identical to previous ones. the final “harder” ones were not too hard at all, probably because they felt a bit more “concrete”.

all quite useful for someone trying to get up to speed on this haskell stuff, i.e. me!

]]> By: Arnaud Bailly http://blog.tmorris.net/20-intermediate-haskell-exercises/#comment-15680 Arnaud Bailly Fri, 19 Sep 2008 12:28:19 +0000 http://blog.tmorris.net/?p=335#comment-15680 Hello, Can we use Hoogle to guess the structures that are hidden behind Misty and Fluffy ;-) ? Regards, Arnaud Hello,
Can we use Hoogle to guess the structures that are hidden behind Misty and Fluffy ;-) ?

Regards,
Arnaud

]]> By: James http://blog.tmorris.net/20-intermediate-haskell-exercises/#comment-15630 James Fri, 19 Sep 2008 07:58:42 +0000 http://blog.tmorris.net/?p=335#comment-15630 Hi, I found your blog on this new directory of WordPress Blogs at blackhatbootcamp.com/listofwordpressblogs. I dont know how your blog came up, must have been a typo, i duno. Anyways, I just clicked it and here I am. Your blog looks good. Have a nice day. James. Hi, I found your blog on this new directory of WordPress Blogs at blackhatbootcamp.com/listofwordpressblogs. I dont know how your blog came up, must have been a typo, i duno. Anyways, I just clicked it and here I am. Your blog looks good. Have a nice day. James.

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