The solutions are tested on the Gambit and the Gauche r7rs Scheme Interpreters.
The input file and the sample file(s) must be placed within the folder of the puzzle.
The input file is named input.txt, while the sample file is named
sample.txt. In a situation where the puzzle provides more than one samples, their
file names can be deduced by reading main.scm for that puzzle - they
will mostly be named as sample.0.txt, sample.1.txt, and so on.
To run on Gambit:
gsi -:search=../lib,r7rs main.scm
To run on Gauche:
gosh -A../lib -r7 main.scm
These solutions are distributed under the MIT license.