reformating day-18

2023/day-18/src/part1.rs

@@ -61,10 +61,14 @@ pub fn part1(input: &str) -> String {
             let dist = (*b - *a).abs();
             dist.x + dist.y
         };
-    let area = (corners.iter().tuple_windows().map(|(a,b)| {
+    let area = (corners
-        a.x * b.y -a.y *b.x
+        .iter()
-    }).sum::<i64>() + perimeter
+        .tuple_windows()
-        )/2 +1;
+        .map(|(a, b)| a.x * b.y - a.y * b.x)
+        .sum::<i64>()
+        + perimeter)
+        / 2
+        + 1;
     area.to_string()
 }