diff --git a/src/main/scala/main.scala b/src/main/scala/main.scala
index e5859ae..c6288f2 100644
--- a/src/main/scala/main.scala
+++ b/src/main/scala/main.scala
@@ -1,4 +1,61 @@
 @main
 def main(): Unit = {
-  println("Hello world!")
-}
\ No newline at end of file
+  println(binKoeff(12,5))
+  println(binKoeffRek(12,5))
+  println(kontakte)
+  println(getMail(kontakte))
+  println(searchNameByNumber(kontakte,"0123456789"))
+  println(triagnles(5))
+}
+
+//Aufgabe 1
+private type kontakt =(String, String, String, String)
+
+val kontakte: List[kontakt] = List(("Johannes","Schmelz","schmelz.johannes@gmx.de","015155550019"),
+  ("Test","Testificate","test@test.com","0123456789"),
+  ("Bob","TheBuilder","bob@buildes.com","9876543210"))
+
+var output:List[String] = List()
+def getMail(adressen:List[kontakt]):List[String] = {
+  adressen match
+    case List() => return output
+    case (vorname,name,mail,tel)::restlist => {
+      output = mail :: output
+      getMail(restlist)
+    }
+  output.reverse
+}
+
+def searchNameByNumber(adressen:List[kontakt], searchedNumber:String):String = {
+  adressen match
+    case List() => "Not found!"
+    case (name,surname,mail,tel)::restliste => if(searchedNumber == tel) {
+      return name+" "+surname
+    } else {
+      searchNameByNumber(restliste,searchedNumber)
+    }
+}
+
+
+//Aufgabe 2
+def binKoeff(m:Int, n:Int):Int = {
+
+  def fac(a: Int): Int = {
+    if (a == 1) return 1
+    else a * fac(a - 1)
+  }
+
+  if (m >=n & n >= 0) {
+    fac(m)/(fac(n)* (fac(m-n)))
+  } else {
+    System.err.println("Falsche Eingabe der Variablen")
+    return 0
+  }
+}
+
+def binKoeffRek(m:Int,n:Int):Int = {
+  if (n == 1)  m
+  else if (m >= n && (n == 0))  1
+  else return m * binKoeffRek(m - 1, n - 1) / n
+}
+