RosettaCodeData/Task/Text-processing-Max-license.../Clojure/text-processing-max-license...

17 lines
551 B
Clojure

(defn delta [entry]
(case (second (re-find #"\ (.*)\ @" entry))
"IN " -1
"OUT" 1
(throw (Exception. (str "Invalid entry:" entry)))))
(defn t [entry]
(second (re-find #"@\ (.*)\ f" entry)))
(let [entries (clojure.string/split (slurp "mlijobs.txt") #"\n")
in-use (reductions + (map delta entries))
m (apply max in-use)
times (map #(nth (map t entries) %)
(keep-indexed #(when (= m %2) %1) in-use))]
(println "Maximum simultaneous license use is" m "at the following times:")
(map println times))