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26 lines
741 B
Clojure
26 lines
741 B
Clojure
(require '[clojure.string :as str])
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(->> "./in"
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(slurp)
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(str/split-lines)
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(map (fn [l] (map #(if (= % \1) 1 0) l)))
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(apply (partial map +))
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(map #(if (< % 500) \1 \0))
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(str/join)
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(#(Integer/parseInt % 2))
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(#(* % (bit-xor % (dec (int (Math/pow 2 12))))))
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(println)
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)
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; (->> input data file name
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; read in entire contents
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; split contents into array of lines
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; for each line, transform characters '1'/'0' to numbers
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; build sum array using the lines
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; convert back to array of characters
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; join characters into single string
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; convert binary string to a number (gamma)
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; multiply gamma by its bit-inverse (bit length hard-coded)
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; print results
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