Tidy

Author: maneatingape

src/year2019/day11.rs

@@ -19,7 +19,7 @@ pub fn part2(input: &[i64]) -> String {
     let hull = paint(input, 1);
 
     // Filter only white panels
-    let panels: Vec<_> = hull.iter().filter(|&(_, &v)| v == 1).map(|(&k, _)| k).collect();
+    let panels: Vec<_> = hull.iter().filter_map(|(&k, &v)| (v == 1).then_some(k)).collect();
 
     // Get maximum extents
     let (x1, x2, y1, y2) = panels.iter().fold(

src/year2020/day21.rs

@@ -99,7 +99,11 @@ pub fn parse(input: &str) -> Input<'_> {
 }
 
 pub fn part1(input: &Input<'_>) -> u32 {
-    input.ingredients.values().filter(|i| i.candidates == 0).map(|i| i.food.count_ones()).sum()
+    input
+        .ingredients
+        .values()
+        .filter_map(|i| (i.candidates == 0).then_some(i.food.count_ones()))
+        .sum()
 }
 
 pub fn part2(input: &Input<'_>) -> String {