aoc 2022 day 1

2022/src/day1.rs

@@ -0,0 +1,44 @@
+const DATA: &'static str = include_str!("../data/day1.txt");
+
+// const DATA: &'static str = "1000
+// 2000
+// 3000
+
+// 4000
+
+// 5000
+// 6000
+
+// 7000
+// 8000
+// 9000
+
+// 10000
+// ";
+
+
+fn main() {
+    let mut counts = DATA.trim()
+        .split("\n\n")
+        .map(|lines| {
+            lines.split("\n")
+                .map(|c| c.parse::<u64>().unwrap())
+                .collect::<Vec<_>>()
+        })
+        .collect::<Vec<_>>();
+
+    counts.sort_by_key(|values| values.iter().sum::<u64>());
+
+    let max_total_cals: u64 = counts.last()
+        .unwrap()
+        .iter()
+        .sum();
+
+    let top3_total_cals: &u64 = &counts[(counts.len() - 3)..]
+        .iter()
+        .flatten()
+        .sum();
+
+    println!("Part 1: {max_total_cals}");
+    println!("Part 2: {top3_total_cals}");
+}

2022/src/lib.rs

@@ -0,0 +1,12 @@
+#[allow(unused_macros)]
+macro_rules! get_data {
+    ($filename: literal) => {
+        include_str!(concat!("../data/", $filename, ".txt"))
+    }
+}
+
+
+#[allow(dead_code)]
+fn main() {
+    todo!();
+}