36 lines
1018 B
Clojure
36 lines
1018 B
Clojure
(set! *warn-on-reflection* true)
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(set! *unchecked-math* :warn-on-boxed)
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(def loop-count 1000000)
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(def expected-checksum 4600001)
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(def words ["alpha" "omega" "delta" "omega" "sigma"])
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(defn configured-loop-count []
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(try
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(let [line (read-line)
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value (Integer/parseInt (.trim ^String line))]
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(if (pos? value) value loop-count))
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(catch Exception _
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loop-count)))
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(defn configured-target []
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(or (first *command-line-args*) "omega"))
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(defn string-eq-loop [limit target]
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(loop [i 0
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acc 1]
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(if (< i limit)
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(let [current (nth words (rem i 5))
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next (if (= ^String current ^String target)
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(+ acc 7)
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(+ acc 3))
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bounded (if (> next 1000000000)
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(- next 1000000000)
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next)]
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(recur (inc i) bounded))
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acc)))
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(let [result (string-eq-loop (configured-loop-count) (configured-target))]
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(println result)
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(System/exit (if (= result expected-checksum) 0 1)))
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