Comments for It Seemed Like A Good Idea, At The Time http://blog.willdonnelly.net Coding, Mostly Fri, 06 Nov 2009 22:37:51 +0000 http://wordpress.com/ hourly 1 Comment on Solving Logic Grid Puzzles in Haskell by Michael Schade http://blog.willdonnelly.net/2009/11/06/solving-logic-grid-puzzles-in-haskell/#comment-148 Michael Schade Fri, 06 Nov 2009 22:37:51 +0000 http://willdonnelly.wordpress.com/?p=314#comment-148 You know I'm partial to Python, so when I saw <a href="http://pastebin.com/f41c6cbf8" title="A Python Solution" rel="nofollow">a Python solution</a> (linked in the comments to the above comment by <em>programmingpraxis</em>), I was rather excited. And then I noticed the beauty of yours versus the inelegance of the Python version. Unlike yours, the Python version fails to abstract the solving code, instead embedding the puzzle in the code itself. With your attempt above, I could quite easily have it solve my own puzzle by touching only the rules, not the actual logic code. You know I’m partial to Python, so when I saw a Python solution (linked in the comments to the above comment by programmingpraxis), I was rather excited.

And then I noticed the beauty of yours versus the inelegance of the Python version. Unlike yours, the Python version fails to abstract the solving code, instead embedding the puzzle in the code itself. With your attempt above, I could quite easily have it solve my own puzzle by touching only the rules, not the actual logic code.

]]> Comment on Solving Logic Grid Puzzles in Haskell by programmingpraxis http://blog.willdonnelly.net/2009/11/06/solving-logic-grid-puzzles-in-haskell/#comment-147 programmingpraxis Fri, 06 Nov 2009 20:40:40 +0000 http://willdonnelly.wordpress.com/?p=314#comment-147 You might enjoy my solution at <a href="http://programmingpraxis.com/2009/06/16/who-owns-the-zebra/" rel="nofollow">Programming Praxis</a>. You might enjoy my solution at Programming Praxis.

]]> Comment on Brian’s (Purely) Functional Brain by Brians Brain — Errata & Echoes « BEST IN CLASS http://blog.willdonnelly.net/2009/10/14/brians-purely-functional-brain/#comment-146 Brians Brain — Errata & Echoes « BEST IN CLASS Sun, 25 Oct 2009 23:40:05 +0000 http://blog.willdonnelly.net/?p=293#comment-146 [...] Will Donnelly really impressed me. The main logic is only about 6 lines of beautiful Haskell  [...] [...] Will Donnelly really impressed me. The main logic is only about 6 lines of beautiful Haskell  [...]

]]> Comment on Brian’s (Purely) Functional Brain by Michael Schade http://blog.willdonnelly.net/2009/10/14/brians-purely-functional-brain/#comment-143 Michael Schade Fri, 16 Oct 2009 22:43:24 +0000 http://blog.willdonnelly.net/?p=293#comment-143 Very nicely done. It has me interested in Haskell now (don't let Python know), that's for sure. Very nicely done. It has me interested in Haskell now (don’t let Python know), that’s for sure.

]]> Comment on Brian’s (Purely) Functional Brain by silver http://blog.willdonnelly.net/2009/10/14/brians-purely-functional-brain/#comment-142 silver Fri, 16 Oct 2009 20:44:29 +0000 http://blog.willdonnelly.net/?p=293#comment-142 Sorry for offtopic, but can you share your haskell-mode? I like your colors :> Sorry for offtopic, but can you share your haskell-mode? I like your colors :>

]]> Comment on Brian’s (Purely) Functional Brain by drhodes http://blog.willdonnelly.net/2009/10/14/brians-purely-functional-brain/#comment-141 drhodes Fri, 16 Oct 2009 03:25:44 +0000 http://blog.willdonnelly.net/?p=293#comment-141 RE: square world, Oh! I suppose the symmetry has something to do with it. I'm having a great time reading this program. It integrate many different aspects: SDL, Concurrency, Random, Monads and Strategies all at once. Thanks for taking the time to post, it helps. RE: square world, Oh! I suppose the symmetry has something to do with it. I’m having a great time reading this program. It integrate many different aspects: SDL, Concurrency, Random, Monads and Strategies all at once. Thanks for taking the time to post, it helps.

]]> Comment on Brian’s (Purely) Functional Brain by Will Donnelly http://blog.willdonnelly.net/2009/10/14/brians-purely-functional-brain/#comment-140 Will Donnelly Thu, 15 Oct 2009 23:31:10 +0000 http://blog.willdonnelly.net/?p=293#comment-140 drhodes: <br> There's good reason for having independent sizes on the different axes: with a perfectly square world you can end up with two gliders remaining, and the two will never collide, but with some properly selected sizing that can be made impossible. <br> Sebastian: <br> You may be right. I think the list comprehension was actually left over from an earlier iteration wherein I needed a similar comprehension multiple times, and I just never really looked at changing it because it wouldn't have altered the line count, and seems plenty clear to me. drhodes:

There’s good reason for having independent sizes on the different axes: with a perfectly square world you can end up with two gliders remaining, and the two will never collide, but with some properly selected sizing that can be made impossible.

Sebastian:

You may be right. I think the list comprehension was actually left over from an earlier iteration wherein I needed a similar comprehension multiple times, and I just never really looked at
changing it because it wouldn’t have altered the line count, and seems plenty clear to me.

]]> Comment on Brian’s (Purely) Functional Brain by drhodes http://blog.willdonnelly.net/2009/10/14/brians-purely-functional-brain/#comment-139 drhodes Thu, 15 Oct 2009 22:47:56 +0000 http://blog.willdonnelly.net/?p=293#comment-139 save 2 lines by reducing worldX and worldY to just worldSize. Same for screenX&Y and assume a square world. save 2 lines by reducing worldX and worldY to just worldSize. Same for screenX&Y and assume a square world.

]]> Comment on Brian’s (Purely) Functional Brain by Sebastian http://blog.willdonnelly.net/2009/10/14/brians-purely-functional-brain/#comment-138 Sebastian Thu, 15 Oct 2009 22:12:15 +0000 http://blog.willdonnelly.net/?p=293#comment-138 Nothing stopping you from breaking a line in two just because it's one expression. Or naming the list comprehension in a where clause or something. It just seems odd to take that roundabout way via the index array. Nothing stopping you from breaking a line in two just because it’s one expression. Or naming the list comprehension in a where clause or something. It just seems odd to take that roundabout way via the index array.

]]> Comment on Brian’s (Purely) Functional Brain by Nathan http://blog.willdonnelly.net/2009/10/14/brians-purely-functional-brain/#comment-137 Nathan Thu, 15 Oct 2009 22:07:38 +0000 http://blog.willdonnelly.net/?p=293#comment-137 Haskell programmers don't win, programmers win by using Haskell. Haskell programmers don’t win, programmers win by using Haskell.

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