--- exercises/046_optionals2.zig	2024-06-23 19:43:16
+++ answers/046_optionals2.zig	2024-06-23 19:42:46
@@ -22,7 +22,7 @@
 
 const Elephant = struct {
     letter: u8,
-    tail: *Elephant = null, // Hmm... tail needs something...
+    tail: ?*Elephant = null, // Hmm... tail needs something...
     visited: bool = false,
 };
 
@@ -66,6 +66,6 @@
 
         // HINT: We want something similar to what `.?` does,
         // but instead of ending the program, we want to exit the loop...
-        e = e.tail ???
+        e = e.tail orelse break;
     }
 }