2022 day01

2022/day01/Cargo.toml

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+[package]
+name = "day01"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+nom.workspace = true
+helper.workspace = true
+divan.workspace = true
+
+[[bench]]
+name = "benches"
+harness = false

2022/day01/benches/benches.rs

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+fn main() {
+    day01::bench();
+}

2022/day01/input_small.txt

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+1000
+2000
+3000
+
+4000
+
+5000
+6000
+
+7000
+8000
+9000
+
+10000

2022/day01/src/lib.rs

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+use helper::{parse_unwrap, Day, Variants};
+
+pub fn main() {
+    helper::main::<Day01>(include_str!("../input.txt"));
+}
+
+struct Day01;
+
+helper::define_variants! {
+    day => crate::Day01;
+    part1 {
+        basic => crate::part1;
+    }
+    part2 {
+        basic => crate::part2;
+    }
+}
+
+impl Day for Day01 {
+    fn part1() -> Variants {
+        part1_variants!(construct_variants)
+    }
+
+    fn part2() -> Variants {
+        part2_variants!(construct_variants)
+    }
+}
+
+fn part1(input: &str) -> u64 {
+    input
+        .trim()
+        .split("\n\n")
+        .map(|elf| elf.trim().split("\n").map(parse_unwrap).sum())
+        .max()
+        .unwrap()
+}
+
+fn part2(input: &str) -> u64 {
+    let mut all = input
+        .trim()
+        .split("\n\n")
+        .map(|elf| elf.trim().split("\n").map(parse_unwrap).sum())
+        .collect::<Vec<u64>>();
+    all.sort();
+    all[(all.len() - 3)..].iter().copied().sum::<u64>()
+}
+
+helper::tests! {
+    day01 Day01;
+    part1 {
+        small => 24000;
+        default => 70698;
+    }
+    part2 {
+        small => 45000;
+        default => 206643;
+    }
+}
+helper::benchmarks! {}

2022/day01/src/main.rs

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+fn main() {
+    day01::main();
+}