Update day01 to read file at runtime instead of compile time

Author: coriolinus

day01/Cargo.toml

@@ -4,3 +4,4 @@ version = "0.1.0"
 authors = ["Peter Goodspeed-Niklaus <[email protected]>"]
 
 [dependencies]
+util = { path = "../util" }

day01/src/main.rs

@@ -1,7 +1,10 @@
 extern crate day01;
 use day01::captcha_str;
 
+extern crate util;
+use util::read_file;
+
 fn main() {
-    let input_str = include_str!("../input.txt").trim();
-    println!("Captcha for input: {:?}", captcha_str(&input_str));
+    let input = read_file("../input.txt");
+    println!("Captcha for input: {:?}", captcha_str(input.trim()));
 }