From 09af2a25e8ac148d85e51fe5b403f1e06ee8470d Mon Sep 17 00:00:00 2001
From: Jakob Scheid <jakob.scheid@icloud.com>
Date: Thu, 19 Mar 2026 15:36:32 +0100
Subject: [PATCH] Problem 01

---
 .gitignore                                      |  6 ++++++
 build.sbt                                       | 17 +++++++++++++++++
 .../ninetyNineScalaProblems/Problem01.scala     | 13 +++++++++++++
 .../Problem01Suite.scala                        | 12 ++++++++++++
 4 files changed, 48 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 build.sbt
 create mode 100644 src/main/scala/ninetyNineScalaProblems/Problem01.scala
 create mode 100644 src/test/scala/ninetyNineScalaProblems/Problem01Suite.scala

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..1eeab4c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,6 @@
+/.bsp/
+target/
+.bloop
+.metals
+.vscode
+/project
\ No newline at end of file
diff --git a/build.sbt b/build.sbt
new file mode 100644
index 0000000..ca7612b
--- /dev/null
+++ b/build.sbt
@@ -0,0 +1,17 @@
+import Dependencies._
+
+ThisBuild / scalaVersion     := "3.8.2"
+ThisBuild / version          := "0.1.0-SNAPSHOT"
+ThisBuild / organization     := "com.example"
+ThisBuild / organizationName := "example"
+
+lazy val root = (project in file("."))
+  .settings(
+    name := "ninetyNineScalaProblems",
+    libraryDependencies += munit % Test
+  )
+
+// See https://www.scala-sbt.org/1.x/docs/Using-Sonatype.html for instructions on how to publish to Sonatype.
+
+
+libraryDependencies += "org.scalameta" %% "munit" % "1.0.4" % Test
\ No newline at end of file
diff --git a/src/main/scala/ninetyNineScalaProblems/Problem01.scala b/src/main/scala/ninetyNineScalaProblems/Problem01.scala
new file mode 100644
index 0000000..23abcdf
--- /dev/null
+++ b/src/main/scala/ninetyNineScalaProblems/Problem01.scala
@@ -0,0 +1,13 @@
+package ninetyNineScalaProblems
+
+object Problem01:
+    def lastElement(list: List[Any]): Option[Any] = 
+        list match
+            case Nil => None
+            case _ => Some(list(list.length - 1))
+
+object Problem01Stdlib:
+    def lastElement(list: List[Any]): Option[Any] =
+        list match
+            case Nil => None
+            case _ => Some(list.last)
\ No newline at end of file
diff --git a/src/test/scala/ninetyNineScalaProblems/Problem01Suite.scala b/src/test/scala/ninetyNineScalaProblems/Problem01Suite.scala
new file mode 100644
index 0000000..c64326a
--- /dev/null
+++ b/src/test/scala/ninetyNineScalaProblems/Problem01Suite.scala
@@ -0,0 +1,12 @@
+package ninetyNineScalaProblems
+
+class Problem01Suite extends munit.FunSuite:
+    List(
+        (List(1, 2, 3, 4, 5), Some(5)),
+        (List(1), Some(1)),
+        (List(), None)
+    ).foreach:
+            case (list, expected) =>
+                test(s"lastElement returns [$expected]"):
+                    assertEquals(Problem01.lastElement(list), expected, "Problem01")
+                    assertEquals(Problem01Stdlib.lastElement(list), expected, "Problem01Stdlib")
\ No newline at end of file