Problem 20

src/main/scala/ninetyNineScalaProblems/Problem20.scala

@@ -0,0 +1,5 @@
+package ninetyNineScalaProblems
+
+object Problem20:
+    def removeAt(n: Int, list: List[Any]): Tuple2[List[Any], Any] =
+        (Problem18.slice(0, n, list) ::: Problem18.slice(n + 1, list.length, list), list(n))

src/test/scala/ninetyNineScalaProblems/Problem20Suite.scala

@@ -0,0 +1,13 @@
+package ninetyNineScalaProblems
+
+import scala.compiletime.ops.boolean
+
+class Problem20Suite extends munit.FunSuite:
+    List(
+        ((0, List(1, 2, 3, 4)), (List(2, 3, 4), 1)),
+        ((1, List(1, 2, 3, 4)), (List(1, 3, 4), 2)),
+        ((0, List(1)), (List(), 1)),
+    ).foreach:
+        case ((n, list), expected) =>
+            test(s"removeAt returns [$expected]"):
+                assertEquals(Problem20.removeAt(n, list), expected)