Code Foo is a private subreddit /r/CodeFoo created to bring a small group of people together to solve common coding prompts. Each challenge is prefaced with the following text, which I believe summarizes the intention of this project.
I suggest sorting this thread by New to see the most recent submissions
The goal of these coding challenges is for you to approach these however you'd like and to have us all communicate. Some people will write their answers in languages they know very well, others will try something completely new out. Regardless of your approach, post your solutions as a top level reply below.
Reddit's formatting can be a little wonky, basically add four spaces to every line of code to get a nice looking code format applied.
Please comment on people's solutions. Ask why they did X, point out potential improvements.