move 2021 days to folder; update README

1 files changed, 0 insertions, 98 deletions

diff --git a/day19/partboth.clj b/day19/partboth.clj
deleted file mode 100644
index 48f1a9c..0000000
--- a/day19/partboth.clj
+++ /dev/null
@@ -1,98 +0,0 @@
-(require '[clojure.core.reducers :as r])
-(require 'clojure.string)
-
-(def orientation-vectors
-  [[[1 0 0]  [0 1 0]  [0 0 1]]
-   [[1 0 0]  [0 0 -1] [0 1 0]]
-   [[1 0 0]  [0 -1 0] [0 0 -1]]
-   [[1 0 0]  [0 0 1]  [0 -1 0]]
-   [[-1 0 0] [0 -1 0] [0 0 1]]
-   [[-1 0 0] [0 0 -1] [0 -1 0]]
-   [[-1 0 0] [0 1 0]  [0 0 -1]]
-   [[-1 0 0] [0 0 1]  [0 1 0]]
-   [[0 0 -1] [1 0 0]  [0 -1 0]]
-   [[0 1 0]  [1 0 0]  [0 0 -1]]
-   [[0 0 1]  [1 0 0]  [0 1 0]]
-   [[0 -1 0] [1 0 0]  [0 0 1]]
-   [[0 0 1]  [-1 0 0] [0 -1 0]]
-   [[0 1 0]  [-1 0 0] [0 0 1]]
-   [[0 0 -1] [-1 0 0] [0 1 0]]
-   [[0 -1 0] [-1 0 0] [0 0 -1]]
-   [[0 -1 0] [0 0 -1] [1 0 0]]
-   [[0 0 1]  [0 -1 0] [1 0 0]]
-   [[0 1 0]  [0 0 1]  [1 0 0]]
-   [[0 0 -1] [0 1 0]  [1 0 0]]
-   [[0 0 1]  [0 1 0]  [-1 0 0]]
-   [[0 -1 0] [0 0 1]  [-1 0 0]]
-   [[0 0 -1] [0 -1 0] [-1 0 0]]
-   [[0 1 0]  [0 0 -1] [-1 0 0]]])
-
-(defn build-scanner-reports
-  "Splits slurped, split-line'd input by scanner."
-  [input-lines]
-  (loop [scanners [] rem-input input-lines]
-    (if (empty? rem-input)
-      scanners
-      (let [[this nxt] (split-with (comp not empty?) rem-input)]
-        (recur (->> (rest this)
-                    (map #(read-string (clojure.string/join ["[" % "]"])))
-                    (conj scanners))
-               (rest nxt))))))
-
-(defn point-add [[a b c] [d e f]] [(+ a d) (+ b e) (+ c f)])
-
-(defn orient [[x y z] [[a b c] [d e f] [g h i]]]
-  [(+ (* x a) (* y d) (* z g)) (+ (* x b) (* y e) (* z h)) (+ (* x c) (* y f) (* z i))])
-
-(defn scanner-orientation [report or-index]
-  (map #(orient (map - %) (get orientation-vectors or-index)) report))
-
-(defn scanner-orientations
-  "Builds list of scanner reports adjusted for all possible orientations."
-  [report]
-  (for [or-vec orientation-vectors]
-    (map #(orient (map - %) or-vec) report)))
-
-(defn scanner-build-potential-links
-  "Builds a list for each s2 orientation that contains lists of each s1 point
-   added to the corresponding s2 point."
-  [s1 s2]
-  (for [s2-or (scanner-orientations s2)]
-    (for [i (range 0 (count s1))]
-      (for [j (range 0 (count s2-or))]
-        (point-add (nth s1 i) (nth s2-or j))))))
-
-(defn scanner-find-connection
-  "Attempt to determine if s1 and s2 are linked through common beacons."
-  [s1 s2]
-  (loop [potential-links (as-> (scanner-build-potential-links s1 s2) $
-                               (for [i (range 0 (count $))] [i (nth $ i)])
-                               (into [] $))]
-    (when-let [[orientation link] (first potential-links)]
-      (if-let [match (first (drop-while #(< (val %) 12) (frequencies (reduce concat link))))]
-        [orientation (key match)]
-        (recur (rest potential-links))))))
-
-(defn scanner-merge
-  "Merges the report of linked scanner s2 into scanner s1."
-  [s1 s2 s2-or s2-coord]
-  (vec (into (set s1) (map #(point-add s2-coord (map - %)) (scanner-orientation s2 s2-or)))))
-
-(let [[beacon-count scanner-coords]
-      (loop [new-reps  (->> (slurp "./in") clojure.string/split-lines build-scanner-reports)
-             sc-coords '([0 0 0])
-             next-reps (rest new-reps)]
-        (if-let [next-rep (first next-reps)]
-          (if-let [[found-or found-coord] (scanner-find-connection (first new-reps) next-rep)]
-            (let [new-base    (scanner-merge (first new-reps) next-rep found-or found-coord)
-                  newest-reps (->> (assoc new-reps 0 new-base) (filterv (partial not= next-rep)))]
-              (println "found" found-coord)
-              (recur newest-reps (conj sc-coords found-coord) (rest newest-reps)))
-            (recur new-reps sc-coords (rest next-reps)))
-          [(count (first new-reps)) sc-coords]))]
-  (println "Part 1:" beacon-count)
-  (println "Part 2:"
-    (apply max
-      (for [p1 scanner-coords p2 scanner-coords :when (not= p1 p2)]
-        (apply + (map #(Math/abs %) (point-add (map - p1) p2)))))))
-