A-M baby

Task/Ackermann-function/Fantom/ackermann-function.fantom

@@ -0,0 +1,24 @@
+class Main
+{
+  // assuming m,n are positive
+  static Int ackermann (Int m, Int n)
+  {
+    if (m == 0)
+      return n + 1
+    else if (n == 0)
+      return ackermann (m - 1, 1)
+    else
+      return ackermann (m - 1, ackermann (m, n - 1))
+  }
+
+  public static Void main ()
+  {
+    (0..3).each |m|
+    {
+      (0..6).each |n|
+      {
+        echo ("Ackerman($m, $n) = ${ackermann(m, n)}")
+      }
+    }
+  }
+}