[TASK] Solved day 2

src/main.rs

@@ -1,7 +1,9 @@
 use std::time::Instant;
+#[macro_use] extern crate lazy_static;
 
 mod util;
 mod day1;
+mod day2;
 
 fn main() {
 
@@ -13,11 +15,13 @@ fn main() {
     if day_arg_idx.is_some() {
         match args[day_arg_idx.unwrap() + 1].parse::<u8>().unwrap() {
             1 => day1::solve(),
+            2 => day2::solve(),
             _ => println!("This day is not yet implemented")
         }
     } else {
         // Solve all days:
         day1::solve();
+        day2::solve();
     }
 
     println!("Execution took {} μs", now.elapsed().as_micros());