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This commit is contained in:
Adam Jeniski 2024-12-04 23:13:30 -05:00
parent b25e12b3a2
commit 3c65d19b8d
2 changed files with 29 additions and 30 deletions
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3
2024/src/core.clj
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@ -28,7 +28,8 @@
(->> list-of-lists count range
(map #(->> % (get list-of-lists) count range))
(map-indexed (fn [row cols]
(map #(list row %) cols)))))
(map #(list row %) cols)))
(mapcat identity)))
(defn bool->binary [condition]
(if condition 1 0))

56
2024/src/day04.clj
View File

@ -11,37 +11,35 @@
;; part 1
(->> input
c/get-coords
(map (partial reduce (fn [acc [row col]]
(+ acc
(->> (for [offset (range 4)]
(map #(apply get-char %)
[[row (+ col offset)]
[row (- col offset)]
[(+ row offset) col]
[(- row offset) col]
[(- row offset) (- col offset)]
[(- row offset) (+ col offset)]
[(+ row offset) (- col offset)]
[(+ row offset) (+ col offset)]]))
(apply map vector)
(filter #(= % (seq "XMAS")))
count)))
0))
(reduce +))
(reduce (fn [acc [row col]]
(+ acc
(->> (for [offset (range 4)]
(map #(apply get-char %)
[[row (+ col offset)]
[row (- col offset)]
[(+ row offset) col]
[(- row offset) col]
[(- row offset) (- col offset)]
[(- row offset) (+ col offset)]
[(+ row offset) (- col offset)]
[(+ row offset) (+ col offset)]]))
(apply map vector)
(filter #(= % (seq "XMAS")))
count)))
0))
;; part 2
(->> input
c/get-coords
(map (partial reduce (fn [acc [row col]]
(+ acc
(if (= (get-char row col) \A)
(->> [[[(dec row) (dec col)] [(inc row) (inc col)]]
[[(inc row) (dec col)] [(dec row) (inc col)]]]
(map (partial map #(apply get-char %)))
(map set)
(apply = #{\M \S})
c/bool->binary)
0)))
0))
(reduce +))
(reduce (fn [acc [row col]]
(+ acc
(if (= (get-char row col) \A)
(->> [[[(dec row) (dec col)] [(inc row) (inc col)]]
[[(inc row) (dec col)] [(dec row) (inc col)]]]
(map (partial map #(apply get-char %)))
(map set)
(apply = #{\M \S})
c/bool->binary)
0)))
0))