Add day03 boilerplate

src/day02/mod.rs

@@ -7,7 +7,7 @@ struct Hand {
 
 impl From<&str> for Hand {
     fn from(s: &str) -> Self {
-        Self { letter: s.0.chars().next().unwrap() }
+        Self { letter: s.chars().next().unwrap() }
     }
 }
 

src/day03/mod.rs

@@ -0,0 +1,23 @@
+use crate::read;
+
+
+pub fn run() {
+    let input = read("02");
+    let lines = input
+        .lines()
+        .map(|l| {
+            l
+        });
+
+    #[cfg(feature = "part1")]
+    {
+        let a = "TODO";
+        eprintln!("Day 2, Part 01: {}", a);
+    }
+
+    #[cfg(feature = "part2")]
+    {
+        let b = "TODO";
+        eprintln!("Day 2, Part 02: {}", b);
+    }
+}

src/main.rs

@@ -3,6 +3,7 @@ use std::path::Path;
 use std::time::Instant;
 mod day01;
 mod day02;
+mod day03;
 
 fn main() {
     let today = Local::now().day();
@@ -13,6 +14,9 @@ fn main() {
     if cfg!(feature = "day02") || (cfg!(feature = "today") && today == 2) {
         day02::run();
     }
+    if cfg!(feature = "day03") || (cfg!(feature = "today") && today == 3) {
+        day03::run();
+    }
     println!("Finished, time taken: {:?}", now.elapsed())
 }