A collection of coding challenges and problems
A seasonal coding challenge.
A coding challenge for students, by Google.
A collection of problems I have encountered while browsing the internet, and found interesting.
This also includes questions I have been given in interviews and liked. Published with permission from the provider.
These are coding problems I've been given in an interview/application. They're submodules linking off to repositories that may be private, so you may not be able to see them.
Interview problems from the rendezvouz with cassidoo newsletter.