day01 time added

src/tasks/day01.rs

@@ -1,9 +1,14 @@
 use std::fs;
+use std::time::Instant;
 
 pub fn run() {
     let content = fs::read_to_string("input/day01.txt").unwrap();
+    let start_time = Instant::now();
     task1(&content);
+    let middle_time = Instant::now();
+    println!("Took {:?}", middle_time - start_time);
     task2(&content);
+    println!("Took {:?}", Instant::now() - middle_time);
 }
 
 fn task1(content: &String) {