[#389739] Ruby Challenge — teresa nuagen <unguyen90@...>

Here is a ruby challenge for all you computer science lovers out there,

22 messages 2011/11/05
[#389769] Re: Ruby Challenge — "Jonan S." <jonanscheffler@...> 2011/11/05

Totally unrelated to any husker computer science programs right? Like

[#389905] Re: Ruby Challenge — Stephen Ramsay <sramsay.unl@...> 2011/11/09

Jonan S. wrote in post #1030330:

[#389907] Re: Ruby Challenge — aseret nuagen <unguyen90@...> 2011/11/09

> You mean like the professor for the course? Because that would be me .

[#389915] Re: Ruby Challenge — Robert Klemme <shortcutter@...> 2011/11/09

On Wed, Nov 9, 2011 at 4:52 AM, aseret nuagen <unguyen90@aim.com> wrote:

[#389792] Tricky DSL, how to do it? — Intransition <transfire@...>

I'd want to write a DSL such that a surface method_missing catches

18 messages 2011/11/06

[#389858] Compiling Ruby Inline C code - resolving errors — Martin Hansen <mail@...>

I am trying to get this Ruby inline C code http://pastie.org/2825882 to

12 messages 2011/11/08

[#389928] Forming a Ruby meetup group... — "Darryl L. Pierce" <mcpierce@...>

Where I work we have a local Ruby group that used to meet up, until the

12 messages 2011/11/09

[#389950] The faster way to read files — "Noé Alejandro" <casanejo@...>

Does anybody know which is the fastest way to read a file? Lets say

18 messages 2011/11/09

[#390064] referring to version numbers in a gem — Chad Perrin <code@...>

How do I specify and access a gem's version number within the code of the

28 messages 2011/11/11

[#390238] RVM problem, plz help — Misha Ognev <b1368810@...>

Hi, I have this problem:

15 messages 2011/11/16

[#390308] any command line tools for querying yaml files — Rahul Kumar <sentinel1879@...>

(Sorry, this is not exactly a ruby question).

11 messages 2011/11/18

[#390338] Newbie - cmd question — Otto Dydakt <ottodydakt@...>

I've literally JUST downloaded ruby from rubyinstaller.org.

21 messages 2011/11/19
[#390342] Re: Newbie - cmd question — Otto Dydakt <ottodydakt@...> 2011/11/19

OK thank you, I uninstalled & reinstalled, checking the three boxes at

[#390343] Re: Newbie - cmd question — "Ian M. Asaff" <ian.asaff@...> 2011/11/19

did you type "irb" first to bring up the ruby command prompt?

[#391154] Re: Newbie - cmd question — "Hussain A." <hahmad@...> 2011/12/12

Hi all,

[#391165] Re: Newbie - cmd question — Luis Lavena <luislavena@...> 2011/12/12

Hussain A. wrote in post #1036281:

[#390374] Principle of Best Principles — Intransition <transfire@...>

I seem to run into a couple of design issue a lot and I never know what is

16 messages 2011/11/20

[#390396] how to call Function argument into another ruby script. — hari mahesh <harismahesh@...>

Consider I have a ruby file called library.rb.

10 messages 2011/11/21

[#390496] How to make 1.9.2 my default version using RVM — Fily Salas <fs_tigre@...>

Hi,

25 messages 2011/11/24

[#390535] Is high-speed sorting impossible with Ruby? — "Gaurav C." <chande.gaurav@...>

Well, first of all, I'm new to Ruby, and to this forum. So, hello. :)

39 messages 2011/11/25
[#390580] Re: Is high-speed sorting impossible with Ruby? — Joao Pedrosa <joaopedrosa@...> 2011/11/27

Hi,

[#390593] Re: Is high-speed sorting impossible with Ruby? — "Gaurav C." <chande.gaurav@...> 2011/11/27

Joao Pedrosa wrote in post #1033884:

[#390600] Re: Is high-speed sorting impossible with Ruby? — Douglas Seifert <doug@...> 2011/11/27

A big gain can be had by disabling the garbage collector. Here is my best

[#390601] Re: Is high-speed sorting impossible with Ruby? — Douglas Seifert <doug@...> 2011/11/27

I've thrown various solutions up on github here:

[#390650] Loading a faulty ruby file - forcing this — Marc Heiler <shevegen@...>

Hi.

10 messages 2011/11/29

[#390689] Stupid question — James Gallagher <lollyproductions@...>

Hi everyone.

22 messages 2011/11/30

Re: Is high-speed sorting impossible with Ruby?

From: Josh Cheek <josh.cheek@...>
Date: 2011-11-27 16:32:39 UTC
List: ruby-talk #390599
On Sun, Nov 27, 2011 at 7:24 AM, Gaurav C. <chande.gaurav@gmail.com> wrote:

> Joao Pedrosa wrote in post #1033884:
> > Hi,
> >
> >> Here's the link to the puzzle. It's just a normal sorting.
> >> http://www.codechef.com/problems/TSORT/
> >
> > That has picked up my interest so I've used it to create a new project
> > on GitHub for solving Codechef challenges, starting with the Turbo Sort:
> >
> > https://github.com/jpedrosa/codechef_takes/tree/master/tsort
> >
> > To make it more of a challenge I've tried to keep the samples more
> > faithful to the challenge. Beside Ruby I plan to use Dart and Go as well
> > to practice with them. Dart doesn't have an optimized I/O yet. :-)
> >
> > I've gathered some numbers here:
> >
> > https://github.com/jpedrosa/codechef_takes/blob/master/tsort/notes.md
> >
> > I also have taken part in another challenge recently and I put Ruby,
> > Dart and Go fighting one another as well:
> >
> > https://github.com/jpedrosa/luhnybin/blob/master/notes.md
> >
> > BTW, I have no idea about the versions used by the Codechef folks to
> > test the samples sent by the users. Hopefully they are used an
> > up-to-date version of Ruby. :-)
> >
> > Cheers,
> > Joao
>
> Hi Joao,
>
> Good thing you did, putting it on GitHub. I saw your solution in
> 'take.rb'. But currently we need much better algo than that. Because
> codechef seems to think that it exceeds '5 seconds'. How did you get the
> same thing running on GitHub within a second? Also, codechef uses Ruby
> 1.9. It's there on their website.
>
> --
> Posted via http://www.ruby-forum.com/.
>
>
I tried playing with Code Chef a few years ago but eventually gave up:
1) It doesn't show you a list of what problems you have and haven't solved
2) I had a lot of trouble getting Ruby to work there
3) Even getting Java to work was a PITA
4) The problems are biased for languages like C (data formats, for example)
5) The limits are strict such that you end up having to write bad code in
the name of optimization

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