take times

src/lib.rs

@@ -1,4 +1,5 @@
 extern crate chrono;
+extern crate itertools;
 extern crate regex;
 
 pub mod tasks;

src/main.rs

@@ -1,4 +1,4 @@
 fn main() {
-    // aoc_2018::tasks::day05::task1();
+    aoc_2018::tasks::day05::task1();
     aoc_2018::tasks::day05::task2();
 }

src/tasks/day05.rs

@@ -1,15 +1,19 @@
+use std::time::Instant;
 use utils;
 
 pub fn task1() {
     let mut input = utils::read_file("input/day05.txt");
+    let start = Instant::now();
     input = reduce(input.as_str());
 
-    println!("resulting polymer: {}", input);
+    println!("Duration: {:?}", Instant::now() - start);
     println!("RESULT: {}", input.len());
 }
 
 pub fn task2() {
     let input = utils::read_file("input/day05.txt");
+    let start = Instant::now();
+    let input = reduce(&input);
     let best = "abcdefghijklmnopqrstuvwxyz"
         .chars()
         .map(|c| {
@@ -25,6 +29,7 @@ pub fn task2() {
         }).min_by_key(|it| it.1)
         .unwrap();
 
+    println!("Duration: {:?}", Instant::now() - start);
     println!("Best: {} (length {})", best.0, best.1);
 }
 
@@ -42,13 +47,7 @@ fn reduce(input: &str) -> String {
             }
 
             if let Some(last) = last {
-                if c.is_lowercase()
-                    && last.is_uppercase()
-                    && c == last.to_lowercase().next().unwrap()
-                    || last.is_lowercase()
-                        && c.is_uppercase()
-                        && last == c.to_lowercase().next().unwrap()
-                {
+                if c.eq_ignore_ascii_case(&last) && c != last {
                     stack.pop();
                 } else {
                     stack.push(c);