move 2021 days to folder; update README

1 files changed, 0 insertions, 43 deletions

diff --git a/day20/partboth.clj b/day20/partboth.clj
deleted file mode 100644
index 33a4d4f..0000000
--- a/day20/partboth.clj
+++ /dev/null
@@ -1,43 +0,0 @@
-(require '[clojure.string :as str])
-
-(defn pad-input-map [in-map pad-val]
-  (let [ly (count in-map) lx (count (first in-map))
-        sy (+ 4 ly) sx (+ 4 lx)
-        buffer (byte-array (repeat (* sy sx) pad-val))]
-    (doseq [y (range 0 ly) x (range 0 lx)]
-      (aset-byte buffer (+ (* sx (+ 2 y)) 2 x) (get-in in-map [y x])))
-    (mapv vec (partition sx buffer))))
-
-(defn get-number [in-map y x]
-  (map (partial get-in in-map)
-       [[(dec y) (dec x)] [(dec y) x] [(dec y) (inc x)]
-        [y (dec x)]       [y x]       [y (inc x)]
-        [(inc y) (dec x)] [(inc y) x] [(inc y) (inc x)]]))
-
-(defn get-new-pixel [enhance-algo in-map y x]
-  (->> (get-number in-map y x)
-       (reduce #(cond-> (* 2 %1) (= 1 %2) inc) 0)
-       (get enhance-algo)))
-
-(defn build-output-number-map [enhance-algo in-map]
-  (let [pad-val (if (pos? (first enhance-algo)) (first (first in-map)) 0)
-        padded-in-map (pad-input-map in-map pad-val)]
-    (->> (for [y (range 1 (dec (count padded-in-map)))]
-           (future
-             (mapv (partial get-new-pixel enhance-algo padded-in-map y)
-                   (range 1 (dec (count (first padded-in-map)))))))
-         (mapv deref))))
-
-(defn count-lit-pixels [in-map] ((frequencies (flatten in-map)) 1))
-
-(let [[enhance-algo in-map]
-      (->> (slurp "./in")
-           str/split-lines
-           ((juxt (comp (partial mapv {\. 0 \# 1}) first)
-                  (comp (partial mapv #(mapv {\. 0 \# 1} %)) (partial drop 2)))))
-      image-output (iterate (partial build-output-number-map enhance-algo) in-map)]
-  (println "Part 1:" (count-lit-pixels (nth image-output 2)))
-  (println "Part 2:" (count-lit-pixels (nth image-output 50))))
-
-(shutdown-agents)
-