add day 7

master
Clyne 3 years ago
parent 945a0a01e0
commit 65df6869e9

@ -0,0 +1,26 @@
(def input
(->> (slurp "./in") ; "16,1,2,0,4,2,7,1,2,14"
(#(clojure.string/split % #","))
(map read-string)
)
)
(defn median [lst]
(let [cnt (count lst)
hlf (quot cnt 2)
srt (sort lst)]
(if (odd? cnt)
(nth srt hlf)
(quot (+ (nth srt hlf) (nth srt (dec hlf))) 2)
)
)
)
(println
(->> input
(map (partial - (median input)))
(map #(if (neg? %) (- %) %))
(apply +)
)
)

@ -0,0 +1,23 @@
(def input
(->> (slurp "./in") ;"16,1,2,0,4,2,7,1,2,14"
(#(clojure.string/split % #","))
(map read-string)
)
)
(defn mean [lst]
(quot (apply + lst) (count lst))
)
(defn calc-fuel [lst meen]
(->> input
(map (partial - meen))
(map #(if (neg? %) (- %) %))
(map #(apply + (range 1 (inc %))))
(apply +)
)
)
(println (min (calc-fuel input (mean input))
(calc-fuel input (inc (mean input)))))
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