Locate yourself in the right directory, e.g ./dayX and run:
$ swipl
?- ['dayX.pl'].
?- start.
Or direct from commandline:
$ swipl -s dayX.pl -g start
SWI-Prolog, I used SWI-Prolog version 7.3.32 for x86_64-linux for development but other versions should work as well.
Solutions to some days uses SWI-Prolog maps, so that might require a quite recent version.
Some problems in AoC16 are really perfect prolog problems, for other problems it is the complete opposite and is quite painful to solve in prolog.
I used it mainly to learn more about the language.
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This was written by a prolog beginner so expect beginner solutions. However I like to believe that my solutions progressed in quality! For instance I learned how to parse with DCG after day 11 :)
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Some solutions are sloow and 1 or 2 solutions are optimized for my input and probably is not general enough to solve every input.
Kim Hammar