This year I am taking on the challenges in Clojure.
To use, add a profiles.clj file with the following data:
{:dev {:env {:aoc-session "53616c7... "}}}You'll need to step through and execute (C-x C-e) most of the
solutions step by step with a REPL.
(comment
(= 2 (count-trues (map is-level-safe? (str->matrix sample)))) ; test case
(count-trues (map is-level-safe? (str->matrix input)))) ; correct!(->>
(s/split day-3-input #"do")
(filter #(not (s/starts-with? % "n't")))
(apply str)
(re-seq #"mul\((\d+),(\d+)\)")
(map #(* (str->int (nth % 1)) (str->int (nth % 2))))
(apply +)) ; correct!- Day 4 (just part one)
(defn day-4-answer [input]
(let [rows (get-rows input)
cols (get-columns input)
diag-se (get-diagonal-rows-se input)
diag-sw (get-diagonal-rows-sw input)
combined (flatten (apply merge rows cols diag-se diag-sw))
reversed (map #(apply str (reverse %)) combined)
all (flatten (apply merge combined reversed))]
(count (re-seq #"XMAS" (s/join "-" all)))))Copyright © 2024 Ryan Fleck
This program and the accompanying materials are made available under the terms of the Eclipse Public License 2.0 which is available at http://www.eclipse.org/legal/epl-2.0.
This Source Code may also be made available under the following Secondary Licenses when the conditions for such availability set forth in the Eclipse Public License, v. 2.0 are satisfied: GNU General Public License as published by the Free Software Foundation, either version 2 of the License, or (at your option) any later version, with the GNU Classpath Exception which is available at https://www.gnu.org/software/classpath/license.html.
Unit tests aren't critical to this project, but visualizations are still cool:
