Implement 2016 day 22 part 1. Again.

2016/src/main.rs

@@ -1,6 +1,6 @@
 extern crate clap;
 extern crate regex;
-extern crate itertools;
+#[macro_use] extern crate itertools;
 extern crate permutohedron;
 use clap::{Arg, App};
 use std::fs;
@@ -14,6 +14,7 @@ pub mod day12;
 pub mod day15;
 pub mod day16;
 pub mod day21;
+pub mod day22;
 pub mod day23;
 pub mod day24;
 pub mod day25;
@@ -27,6 +28,7 @@ fn get_impl(day: &str) -> Box<common::Solution> {
         Ok(15) => { Box::new(day15::Day15::new()) }
         Ok(16) => { Box::new(day16::Day16::new()) }
         Ok(21) => { Box::new(day21::Day21::new()) }
+        Ok(22) => { Box::new(day22::Day22::new()) }
         Ok(23) => { Box::new(day23::Day23::new()) }
         Ok(24) => { Box::new(day24::Day24::new()) }
         Ok(25) => { Box::new(day25::Day25::new()) }