use std::env;
use std::process;
use std::thread;
use std::time::Instant;

fn main() {
	let mut times : u32 = 250000;
	let args: Vec<String> = env::args().collect();
	if args.len() > 2 { process::exit( 1 ); }
	if args.len() == 2 { times = args[1].parse().unwrap(); }

	let start = Instant::now();
	for _ in 1..times {
		let th = thread::spawn( move || {});
		th.join().unwrap();
	}
	let duration = start.elapsed() / times;
	println!( "{:?}", duration.as_nanos() )
}

// Local Variables: //
// mode: c++ //
// tab-width: 4 //
// compile-command: "rustc -C opt-level=3 rust_thrd.rs" //
// End: //