September 2017 Update

Task/Text-processing-Max-licenses-in-use/Clojure/text-processing-max-licenses-in-use.clj

@@ -0,0 +1,16 @@
+(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))