Implement day 15 of 2016.

2016/src/main.rs

@@ -1,14 +1,17 @@
 extern crate clap;
+extern crate regex;
 use clap::{Arg, App};
 use std::fs;
 use std::io;
 
 pub mod common;
 pub mod day1;
+pub mod day15;
 
 fn get_impl(day: i32) -> Box<common::Solution> {
     match day {
         1 => { Box::new(day1::Day1::new()) }
+        15 => { Box::new(day15::Day15::new()) }
         _ => {
             panic!("Unimplemented day {}", day)
         }