Or should we implement something with Python, C, C#, VB and Java, but then the snippets would get separate votes, not total of all versions.... Of course I would need still to learn C# (and improve Java/C/VB)...

To help with the problem of getting votes on less visited forums, I would suggest that, at least, all snippets should have a link posted on this thread, and ask that moderators try to take the time to check out each submission, even if it is in a foreign programming language (as in, not the mod's preferred language). I don't know about you, but I can appreciate a nice piece of code regardless of the programming language (as long as I understand it, which I do for most languages). But beyond that, as Dani said, it's part of the game, if you choose a narrow language to code a piece of code with a narrow application area, then you can't expect as much of a wide-spread appreciation of it.

Also, I'm starting to think of ideas and I'd like to get a feel for the expected extent of the snippet. So here are two ideas I have, tell me if they are too much or too little.
(1) A logging system for exceptions in C++, with some predefined logging and handling behaviors. With configurable sinks, strong safety guarantees, and so on.
(2) An adjacency-list graph overlaid on a breadth-first tree layout to allow for efficient, cache-aware (or cache-oblivious) binary-search tree implementations over nodes of a general graph (adj-list).

The first is pretty simple (~200 lines or so). The second is pretty hefty (~1000 lines or so) with loads of advanced C++ techniques. So, are code snippets expected to be closer to the former or the latter? Or am I completely crazy?

I do not know, but maybe there should be encouraged to be considerable discussion in Code Snippets posted this summer commenting the strong points and interesting features of snippets as well as any blemishes. This could be used as less knowledgable members to gain insight of language they do not use and give them possibility to evaluate second hand through other's comments the snippets outside of their comfort zone.

I think in Python terms the upper limit of Code Snippet to be around 200-300 LOC. Main thing for me is that other members can crasp the whole code in their mind. Writing with more verbose/lower level languages could mean narrowing the scope of snippet. One possibility would be modular design with simple short basic implementation for some parts. Then you could present gradually improvements to those implementations. That would also make very interesting and relevant reading. Or you could have program with only basic functionality implemented and clear road for impovents. Even you could leave some obvious point unimplemented and point it out to encourage the readers to expand on your post. This my snippet could be example of this kind of left in middle, "open ended", (even at start) post: http://www.daniweb.com/software-development/python/code/403873/text-based-english-solitaire-from-wikipedia

This said I have posted many very short 'trick' or example of technique style of posts as code snippets, including one liners http://www.daniweb.com/software-development/python/code/382803/one-line-vigener-single-decryptencrypt-function-with-generator

I do not know how about people feel about these snippets, however. Have to get inspiration to post something, so I can find out through this competition. I have though shared so many ideas as I have posted until moment of writing this post 94 snippets, so I have not anything up in my sleeve waiting. At least when somebody starts to post some snippet and I get to think "I can do this much better in Python", I should have some inspiration.

To help with the problem of getting votes on less visited forums, I would suggest that, at least, all snippets should have a link posted on this thread, and ask that moderators try to take the time to check out each submission, even if it is in a foreign programming language (as in, not the mod's preferred language).

I agree with this. I was worried about that problem too. I'm in the process of writing something that will help me automate as much of my work as possible and I'm considering submitting a (self-contained) part of it to the competition. I'm using haskell for this, as functional languages are better suited for writing programs like the one I write (I heavily (ab)use pattern matching). I found a way, though, to write the part I want to submit in c++ (yes, there is native support for (even nested) pattern mathing in c++ (those of you who understand what I mean, please don't tell the others what I'm talking about)), and that's what I'll be submitting. But even if this solves the problem for me, others might not have such an option, so, once again, I agree with mike's suggestion.

I have a couple of questions too:

-> Are we allowed to use freely available 3rd party libraries?
-> Are we allowed to submit more than one code snippets?

My policies of these things considered 'cheating' during studying:

1. I consider using all possible libraries a plus when considering the efficiency of the snippet.
2. Are you allowed more than one post to Daniweb? (hint: check my post count) ;) The purpose is not to stop me reaching 100 posted code snippets, I hope.

Another point is the disqualification points, few possible cases, would these be disqualified?

1. poster posts code as discussion thread asking feed back, does some suggestions and own improvements and posts it result as code snippet.
2. Poster posts a code snippet and posts a bug fix after one hour as reply
3. Same as 2 but he is moderator and he edits the original post
4. After post as colde snippet somebody notices missing newline in output in some corner cases.

Thanks.... Good Idea

I would like to be part in this GAME .......................

Welcome!
Then prepare a good piece of code, post it to the relevant sub-forum (as a code-snippet), and post a link to that code snippet on this thread (to make it "official").

Does everything have to be in one file and in one language? For example, what about, say, a C++ program that uses a class connecting to a Java program for the GUI. That's a main.cpp file, a .h class file, a .cpp class file, and the Java file, so that's at least four. Add a Makefile and a README and perhaps a text file for the programs to read from and you're up to seven (although, think about it, it's ONE zip file ;)). It could easily get out of hand, of course, but think about it. When was the last time you coded anything cool all in one file?

Does everything have to be in one file and in one language?

In my opinion, it should just be in one language, unless the other-language-code is a very common external library. But, it's Dani's call.

And it can certainly be in multiple files, but I would try to keep it within reason.

When was the last time you coded anything cool all in one file?

Well, one of the coolest piece of C++ code is the ScopeGuard, and it fits in about 30 lines of code.

my program would not fit in one snippet. it's an entire package. I guess I am disqualified. maybe I should submit it to sourceforge? I am considering that...

what is going to be done with the code?

The way I see it, every programmer has a bag of tricks that they use. To me, the point of the contest is to show off one such trick that you think is clever and/or useful. It can be a nice language-technical trick (e.g., doing something that people don't suspect can be done), a nice algorithmic trick (e.g., a clever tail-recursion, or something), or a very useful little tool (e.g., a kind of smart-pointer). When you program a library or large application, most of the code is boringly ordinary, but once in a while you come up with a very neat solution to a particular problem / application. The idea is to take one such trick (or come up with one) and formulate it in a self-contained snippet (like the class that implements the solution, and a basic program that demonstrates it use / purpose). Then, it will be part of the code-snippet library, and people that read it might think its just cool or a very nice way to solve a type of problem.