Personal opinion, There are a million snakes program out there which is free and no source code, and with source code which is complete. As other members here stated, this game is not a "new" game, it is already done and already polished. So why wont you post your source code so others can see how you did it? I really don't care cause googling Sake Game Source Code gives a million responses. But it is the thought that counts, and your thought states that your against it.
Technically speaking, creating a Snakes or a Tetris game isn't difficult, it is a very simple logic game. If your a new to programming, it shouldn't take you more than a couple of days doing it. But if you understand programming, it shouldn't take you more than a couple of hours. With a good design and know a bit of programming, I recall the logic of the snakes game is around ~100 LOC.
For example,
http://www.strille.net/tutorials/snake/index.php is a snakes game made in Flash (action script), it is around 100 LOC and as you see it is simple conditional statements such as forloop, if, else.
So if you guys want to learn programming, it is very simple, everyone learns from others and the opensource community is there so it can teach others and others can improve it. That is how most smart programmers learn these days, by being part of an open source project and giving to the community