Problem 04

src/main/scala/ninetyNineScalaProblems/Problem04.scala

@@ -0,0 +1,19 @@
+package ninetyNineScalaProblems
+
+import scala.annotation.tailrec
+
+object Problem04:
+    def listLength(list: List[Any]): Int =
+        @tailrec
+        def loop(cursor: List[Any], acc: Int): Int =
+            cursor match
+                case head :: tail =>
+                    loop(tail, acc + 1)
+                case Nil =>
+                    acc
+
+        loop(list, 0)
+
+object Problem04Stdlib:
+    def listLength(list: List[Any]): Int =
+        list.length