--- exercises/109_vectors.zig	2024-11-07 14:57:09.673383618 +0100
+++ answers/109_vectors.zig	2024-11-07 14:22:59.069150138 +0100
@@ -121,8 +121,8 @@
 
 const Vec4 = @Vector(4, f32);
 fn calcMaxPairwiseDiffNew(a: Vec4, b: Vec4) f32 {
-    const abs_diff_vec = ???;
-    const max_diff = @reduce(???, abs_diff_vec);
+    const abs_diff_vec = @abs(a - b);
+    const max_diff = @reduce(.Max, abs_diff_vec);
     return max_diff;
 }