Day 1, Part 1 & 2

src/bin/d1.rs

@@ -0,0 +1,18 @@
+const INPUT: &str = include_str!("../input/d1p1.txt");
+
+fn main() -> anyhow::Result<()> {
+    let mut elves = INPUT
+        .split("\n\n")
+        .map(|elf| {
+            elf.split('\n')
+                .map(|s| s.parse::<usize>().expect("Failed to parse input"))
+                .sum::<usize>()
+        })
+        .collect::<Vec<_>>();
+    let max = elves.iter().max();
+    println!("max: {max:?}");
+    elves.sort_unstable_by(|l, r| r.cmp(l));
+    let top3 = elves.iter().take(3).sum::<usize>();
+    println!("top3: {top3:?}");
+    anyhow::Ok(())
+}