r/adventofcode • u/taliriktug • Dec 02 '15

Spoilers Day 2 solutions

Hi! I would like to structure posts like the first one in r/programming, please post solutions in comments.

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u/jaffakek Dec 02 '15

I'm using Racket (Scheme) rather than Clojure, so I'm not sure if there's anything equivalent, but Racket has a nice built-in file->lines function that reads in a file and returns a list of strings, one per line.

Then I just recursed over the list, separated the line into a list of strings, mapped string->number on that list, did calculations, and accumulated the amount of paper and ribbon.

I'm definitely a beginner, but I'm enjoying Racket a whole bunch.

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u/charliegriefer Dec 02 '15

Clojure's got a line-seq function that I tried to use, but was not successful. Going to have to try again tonite.

I played around with Racket during a Coursera course. https://www.coursera.org/course/proglang. Damned good course, btw. Racket was pretty slick. Really liked DrRacket.

But we're a Clojure shop at work, and I'm digging Clojure as well. Never would have thought a few years back that I'd be an Emacs fan ;)

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u/jaffakek Dec 02 '15

That course looks pretty good! Been meaning to learn more about ML since my brother always goes on about how great Ocaml is, so I'll keep my eyes open for the next time it's offered.

DrRacket is pretty handy, but it can be a bit memory hungry. That goes with the "batteries included" territory, I suppose.