Advents of Code (programming challenges)

[pier4r]

I still have to debug day 14 - my idea is: pick a program that works, execute it on my input, check the result in terms of the map (the sand falling), find the differences with the map generated on the 50g, fix my program. Somewhat time consuming.

Anyway since I was trying to solve some other things I (re)realized (as I forgot) that the 50g has something that approximates a regexp substitution, the MATCH operations. Although those apply on simbols, I am not sure whether one can freely move from strings to single quoted strings.