Initial skeleton code for 2020

2020/src/lib.rs

@@ -0,0 +1,19 @@
+use std::io::Read;
+
+mod common;
+mod day01;
+
+pub trait Solution {
+    fn part1(&mut self, input: &mut dyn Read) -> String;
+
+    fn part2(&mut self, _input: &mut dyn Read) -> String {
+        unimplemented!("Still working on part 1");
+    }
+}
+
+pub fn get_implementation(day: usize) -> Box<dyn Solution> {
+    match day {
+        1 => Box::new(day01::Day01::default()),
+        _ => panic!("Unsupported day {}", day),
+    }
+}