fn mean(vec: &[i32]) -> f64 {
  let sm : i32 = vec.iter().fold(0, |sm, val| sm+val);
  return (f64::from(sm))/(vec.len() as f64);
}

fn median(mut vec: Vec<i32>) -> f64 {
    vec.sort();
    let half = (vec.len())/2;
    let med = match vec.len() % 2 {
      1 => f64::from(vec[half]),
      _ => mean(&vec[(half-1)..(half+1)])
    };
    return med;
}

fn main(){
  let st: &str = "1 23 45 32 65 7 8 98 58 43 21";
  let vec: Vec<i32> = st
    .split_whitespace()
    .map(
      |e|
      match e.parse::<i32>() {
        Ok(i) => i,
        _ => 0
      }
    )
    .collect();

  println!("Sorted vector{:?}", vec);
  let med = median(vec);
  println!("Median {:?}", med);
}