June 2018 Update

Task/Text-processing-Max-licenses-in-use/Kotlin/text-processing-max-licenses-in-use.kotlin

@@ -0,0 +1,30 @@
+// version 1.1.51
+
+import java.io.File
+
+fun main(args: Array<String>) {
+    val filePath = "mlijobs.txt"
+    var licenses = 0
+    var maxLicenses = 0
+    val dates = mutableListOf<String>()
+    val f = File(filePath)
+
+    f.forEachLine { line ->
+        if (line.startsWith("License OUT")) {
+            licenses++
+            if (licenses > maxLicenses) {
+                maxLicenses = licenses
+                dates.clear()
+                dates.add(line.substring(14, 33))
+            }
+            else if(licenses == maxLicenses) {
+                dates.add(line.substring(14, 33))
+            }
+        }
+        else if (line.startsWith("License IN")) {
+            licenses--
+        }
+    }
+    println("Maximum simultaneous license use is $maxLicenses at the following time(s):")
+    println(dates.map { "  $it" }.joinToString("\n"))
+}