Day 01

.gitignore

@@ -1,9 +1,11 @@
+.history/
 # ---> Rust
 # Generated by Cargo
 # will have compiled files and executables
 debug/
 target/
 
+
 # Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
 # More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
 Cargo.lock
@@ -14,3 +16,5 @@ Cargo.lock
 # MSVC Windows builds of rustc generate these, which store debugging information
 *.pdb
 
+# AoC
+input/

Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "aoc_2022"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+aoc-runner = "0.3.0"
+aoc-runner-derive = "0.3.0"

src/day01.rs

@@ -0,0 +1,19 @@
+use std::cmp::Reverse;
+
+use aoc_runner_derive::{aoc, aoc_generator};
+#[aoc_generator(day1)]
+pub fn input_generator(input: &str) -> Vec<usize> {
+    input.split("\n\n").map(|chunk| chunk.lines().map(|line| line.trim().parse::<usize>().unwrap()).sum()).collect()
+}
+
+#[aoc(day1, part1)]
+pub fn solve_part1(input: &[usize]) -> usize {
+    input.iter().max().copied().unwrap_or(0)
+}
+
+#[aoc(day1, part2)]
+pub fn solve_part2(input: &[usize]) -> usize {
+    let mut scores: Vec<usize> = input.to_vec();
+    scores.sort_by_key(|v| Reverse(*v));
+    scores.iter().take(3).sum()
+}

src/dayXX.rs

@@ -0,0 +1,15 @@
+use aoc_runner_derive::{aoc, aoc_generator};
+#[aoc_generator(dayX)]
+pub fn input_generator(input: &str) -> _ {
+    todo!()
+}
+
+#[aoc(dayX, part1)]
+pub fn solve_part1(input: &[usize]) -> _ {
+    todo!()
+}
+
+// #[aoc(dayX, part2)]
+// pub fn solve_part2(input: &[usize]) -> _ {
+//     todo!()
+// }

src/lib.rs

@@ -0,0 +1,4 @@
+
+use aoc_runner_derive::aoc_lib;
+pub mod day01;
+aoc_lib! { year = 2022 }

src/main.rs

@@ -0,0 +1,2 @@
+use aoc_runner_derive::aoc_main;
+aoc_main! { lib  = aoc_2022 }