use std::time::{Instant, Duration};

pub fn main() {
    let mut counter = 0;
    let mut times = Vec::with_capacity(1000);
    let start = Instant::now();

    loop {
        counter += 1;

        if counter >= 1000 {
            break;
        }

        times.push(Instant::now());
    }

    let mut times: Vec<Duration> = times.iter().scan(start, |prev, &t| {
        let diff = t - *prev;
        *prev = t;
        Some(diff)
    }).collect();
    times.sort();

    println!("{}", times[times.len() / 2].as_nanos());
}