Rosetta Code collects solutions to standard programming exercises in hundreds of programming languages. However, it focuses on "good" or idiomatic solutions in those languages. I'm not aware of a similar catalogue from a golfing perspective. Is PPCG capable of fulfilling that role? Do we have challenges for standard programming exercises, where the answers can act as a catalogue of the shortest possible solution in each language? I know Anarchy Golf contains leaderboards for all the languages it supports, but the solutions aren't disclosed.
Long story short, of course I know we do. However, we only recently started emphasising the catalogue nature of challenges corresponding to simple (and common) tasks. There are many more such tasks which
- Have never been asked on PPCG without any fancy extras like restricted-source before.
- Have been asked before, but where the challenge is not particularly well-specified and could use an overhaul.
- Have been asked before, but could use some love to include the leaderboard to generate the actual catalogue more easily.
This post (with its answers) is an effort to organise existing and upcoming catalogues a bit. We have talked about this in chat a few times, and the general consensus seems to be that a) these challenges need extra care if they are supposed to be good references and b) they shouldn't be posted too often, e.g. not more than one every other week, because they take a lot of effort from the community to be filled with a large number of answers.
This is not supposed to be a sandbox for catalogue-type challenges. This is rather intended to compile an overview of what has been done and what is still left to do. Whenever we pick a particular challenge from the list, it should still be fleshed out in the normal sandbox.