These problems are great programming practice, and the forums for each problem once you've solved them are interesting.
What would be more interesting would be to be able to look at how other people solved the problem in my language of choice. While someone might have come up with a great solution in Assembler or J or Erlang, I'd much rather see people's solutions in Java or Scala, which I (am trying to) use, so I can see how to make mine better. And if one day I decide to try Python, I'd like to quickly see how people solved the problem in that. Currently there doesn't seem to be any way to filter people's posts by language.
Moreover, I'm interested in seeing the best solutions, so why not add voting buttons so we see the best solutions first, rather than just whoever posted first 6 years ago?
This would be an immense help in improving my programming skills.
Thanks
Rhys