1 files changed, 38 insertions, 0 deletions
diff --git a/src/bin/2022/day1.rs b/src/bin/2022/day1.rs
new file mode 100644
index 0000000..1b48b29
--- /dev/null
+++ b/src/bin/2022/day1.rs
@@ -0,0 +1,38 @@
+#![allow(dead_code)]
+#![allow(unused_variables)]
+
+use advent_of_code::prelude::*;
+
+pub fn parse(fh: File) -> Result<Vec<u64>> {
+    let mut elves = vec![];
+    let mut lines = parse::raw_lines(fh).peekable();
+    while lines.peek().is_some() {
+        let mut calories = 0;
+        for line in parse::chunk(&mut lines) {
+            calories += line.parse::<u64>()?;
+        }
+        elves.push(calories);
+    }
+    Ok(elves)
+}
+
+pub fn part1(elves: Vec<u64>) -> Result<u64> {
+    Ok(elves.iter().copied().max().unwrap_or(0))
+}
+
+pub fn part2(mut elves: Vec<u64>) -> Result<u64> {
+    elves.sort();
+    Ok(elves.iter().rev().copied().take(3).sum())
+}
+
+#[test]
+fn test() {
+    assert_eq!(
+        part1(parse(parse::data(2022, 1).unwrap()).unwrap()).unwrap(),
+        67658
+    );
+    assert_eq!(
+        part2(parse(parse::data(2022, 1).unwrap()).unwrap()).unwrap(),
+        200158
+    );
+}