util

src/util.rs

@@ -0,0 +1,22 @@
+use std::{fs, path::Path};
+
+pub type Solution = (usize, usize);
+
+pub trait Day {
+    fn solve(input: &str) -> Solution;
+}
+
+///
+/// Read data for a specific day
+/// ---
+/// It is assumed that the data file is formatted as input_dd.txt
+/// # Errors
+///
+/// This function will return an error if .
+pub fn read_input(day: u8) -> Result<String, std::io::Error> {
+    const BASE_PATH: &str = "../data";
+    let path = format!("{BASE_PATH}/input_{day:02}.txt");
+    let path = Path::new(&path);
+    println!("{path:?}");
+    fs::read_to_string(path)
+}