diff --git a/src/bin/day11.rs b/src/bin/day11.rs
index e5e01e7..1bdb771 100644
--- a/src/bin/day11.rs
+++ b/src/bin/day11.rs
@@ -34,7 +34,12 @@ impl Day11 {
                         let min_x = min(x0, x1);
                         let max_x = max(x0, x1);
 
-                        xd += to_add * self.empty_xs.iter().filter(|&&x| min_x < x && x < max_x).count();
+                        xd += to_add
+                            * self
+                                .empty_xs
+                                .iter()
+                                .filter(|&&x| min_x < x && x < max_x)
+                                .count();
                         yd += to_add * self.empty_ys.iter().filter(|&&y| y0 < y && y < y1).count();
 
                         xd + yd