1 files changed, 38 insertions, 0 deletions
diff --git a/aoc22/day1/src/main.rs b/aoc22/day1/src/main.rs
new file mode 100644
index 0000000..1754e1b
--- /dev/null
+++ b/aoc22/day1/src/main.rs
@@ -0,0 +1,38 @@
+use std::collections::BinaryHeap;
+
+fn main() {
+    let input = lib::read_input(1);
+
+    part1(&input);
+    part2(&input);
+}
+
+fn part1(input: &str) {
+    let ans: usize = input
+        .split("\n\n")
+        .map(|elf| {
+            elf.split("\n")
+                .flat_map(|item| item.parse::<usize>().ok())
+                .sum()
+        })
+        .max()
+        .unwrap();
+
+    println!("{}", ans);
+}
+
+fn part2(input: &str) {
+    let mut heap: BinaryHeap<usize> = input
+        .split("\n\n")
+        .map(|elf| {
+            elf.split("\n")
+                .flat_map(|item| item.parse::<usize>().ok())
+                .sum()
+        })
+        .collect();
+
+    println!(
+        "{}",
+        heap.pop().unwrap() + heap.pop().unwrap() + heap.pop().unwrap()
+    );
+}