--- exercises/097_bit_manipulation.zig	2025-05-12 21:25:03.395385743 +0200
+++ answers/097_bit_manipulation.zig	2025-05-12 21:22:57.472986976 +0200
@@ -80,7 +80,7 @@
     y ^= x;
 
     // What must be written here?
-    ???;
+    x ^= y;
 
     print("x = {b}; y = {b}\n", .{ x, y });
 }