saving progress so far

src/main.rs

@@ -16,9 +16,17 @@ struct Cli {
 fn main() -> std::io::Result<()> {
     let args = Cli::parse();
 
+    use std::time::Instant;
+    let now = Instant::now();
+
     let file = File::open(&args.path)?;
     let vcd = parse_vcd(file).unwrap(); 
 
+    let elapsed = now.elapsed();
+    println!("Elapsed: {:.2?}", elapsed);
+
+    vcd.print_longest_signal();
+
     // println!("printing signal tree");
     // vcd.print_scopes();