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This commit is contained in:
Adam Jeniski 2024-12-04 23:24:40 -05:00
parent 3c65d19b8d
commit c52b029321
1 changed files with 12 additions and 15 deletions
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27
2024/src/day04.clj
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@ -11,9 +11,8 @@
;; part 1
(->> input
c/get-coords
(reduce (fn [acc [row col]]
(+ acc
(->> (for [offset (range 4)]
(map (fn [[row col]]
(->> (for [offset (range 4)]
(map #(apply get-char %)
[[row (+ col offset)]
[row (- col offset)]
@ -26,20 +25,18 @@
(apply map vector)
(filter #(= % (seq "XMAS")))
count)))
0))
(reduce +))
;; part 2
(->> input
c/get-coords
(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))
(filter #(= (apply get-char %) \A))
(map (fn [[row col]]
(->> [[[(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)))
(reduce +))