Initial data commit

Task/Ackermann-function/Elena/ackermann-function.elena

@@ -0,0 +1,30 @@
+import extensions;
+
+ackermann(m,n)
+{
+    if(n < 0 || m < 0)
+    {
+        InvalidArgumentException.raise()
+    };
+
+    m =>
+       0 { ^n + 1 }
+       : {
+              n =>
+                0 { ^ackermann(m - 1,1) }
+                : { ^ackermann(m - 1,ackermann(m,n-1)) }
+           }
+}
+
+public program()
+{
+    for(int i:=0, i <= 3, i += 1)
+    {
+        for(int j := 0, j <= 5, j += 1)
+        {
+            console.printLine("A(",i,",",j,")=",ackermann(i,j))
+        }
+    };
+
+    console.readChar()
+}