Add solution to day 3

It's horrible, but that's what happens when you design something for the
first part and then use the scraps for the second.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/main.rs b/src/main.rs
index 0c3f0a7..094d48b 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,5 +1,6 @@
 mod day_1;
 mod day_2;
+mod day_3;
 
 use std::fs::File;
 use std::io::{BufRead, BufReader};
@@ -28,6 +29,7 @@ fn run(day: u8, input: Vec<String>)
     match day {
         1 => day_1::run(input),
         2 => day_2::run(input),
+        3 => day_3::run(input),
         o => panic!("Day {} is not implemented (yet)", o),
     }
 }