Move scala codebase in a directory on its own

scalaAoC/2018/day2/part2.scala

@@ -0,0 +1,16 @@
+import scala.io.StdIn._
+
+
+val items = Iterator
+  .continually(readLine)
+  .takeWhile(_ != null)
+  .toList
+
+val res = items
+  .combinations(2)
+  .map(x => x(0) zip x(1))
+  .dropWhile(_.count(t => t._1 != t._2) != 1)
+  .map(_.filter(t => t._1 == t._2).map(_._1))
+  .next
+
+println(res.mkString(""))