Parallelised the execution of each day

src/main.rs

@@ -5,8 +5,9 @@ use std::error::Error;
 
 use solutions::*;
 
-fn main() -> Result<(), Box<dyn Error>> {
-    let days: Vec<Box<dyn Solution>> = vec![
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn Error>> {
+    let days: Vec<Box<dyn Solution + Sync>> = vec![
         Box::new(day01::Day01 {}),
         Box::new(day02::Day02 {}),
         Box::new(day03::Day03 {}),
@@ -15,9 +16,24 @@ fn main() -> Result<(), Box<dyn Error>> {
         Box::new(day06::Day06 {}),
     ];
 
+    let mut t = vec![];
+
     // Run through and generate solutions
-    for day in days.iter().rev() {
-        day.run()?;
+    for day in days.leak().iter().rev() {
+        let task = tokio::spawn(async { day.run().unwrap() });
+        t.push(task);
+    }
+
+    let mut days = vec![];
+    for thread in t {
+        days.push(thread.await?);
+    }
+
+    for day in days {
+        println!("========= Day {} ==========", day.day);
+        println!("Part1 Result: {}", day.part1);
+        println!("Part2 Result: {}", day.part2);
+        println!("========= {}ms =========", day.time.as_millis());
     }
 
     Ok(())