From e41e6c8bc72e3300a0fa137f198454341bc315b1 Mon Sep 17 00:00:00 2001
From: mathiasmagnusson <mathiasmagnussons@gmail.com>
Date: Fri, 9 Dec 2022 18:00:02 +0100
Subject: Add aoc

---
 aoc22/day1/src/main.rs | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 aoc22/day1/src/main.rs

(limited to 'aoc22/day1/src/main.rs')

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()
+    );
+}
-- 
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