2022 Rust directory

2022/rust/Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "rust"
+version = "0.1.0"

2022/rust/Cargo.toml

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+[package]
+name = "rust"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

2022/rust/inputs/scratch.txt

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+a
+b
+c
+d
+sss
+asas

2022/rust/src/main.rs

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+mod utils;
+mod solutions;
+
+
+fn main() {
+    solutions::day01::run();
+}

2022/rust/src/solutions/day01.rs

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+use crate::utils;
+
+pub fn run() -> () {
+    let data = utils::read_lines(utils::Source::Scratch);
+
+    println!("Day 1");
+    for x in data {
+        println!("{}", x);
+    }
+}

2022/rust/src/solutions/mod.rs

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+pub mod day01;

2022/rust/src/utils.rs

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+use std::fs::File;
+use std::io::{BufRead, BufReader};
+use std::path::Path;
+
+
+pub enum Source { Scratch, Day(i32) }
+
+
+pub fn read_lines(source: Source) -> Vec<String> {
+    let path = match source {
+        Source::Scratch => "inputs/scratch.txt".to_string(),
+        Source::Day(day) => {
+            assert!(1 <= day && day < 25);
+            format!("inputs/day{:0>2}.txt", day)
+        }
+    };
+    _read_lines(&path).expect(format!("Failed to load from {}", &path).as_str())
+}
+
+fn _read_lines<P>(filename: P) -> std::io::Result<Vec<String>>
+    where P: AsRef<Path> {
+    let file = File::open(filename)?;
+    BufReader::new(file).lines().collect()
+}