#![allow(dead_code, deprecated, unused_variables, unused_mut)]
fn main() {
    let mut v = [-5i32, 4, 2, -3, 1];
    let (lesser, median, greater) = v.select_nth_unstable(2);
    assert!(lesser == [- 3, - 5] || lesser == [- 5, - 3]);
    assert_eq!(median, & mut 1);
    assert!(greater == [4, 2] || greater == [2, 4]);
    assert!(
        v == [- 3, - 5, 1, 2, 4] || v == [- 5, - 3, 1, 2, 4] || v == [- 3, - 5, 1, 4, 2]
        || v == [- 5, - 3, 1, 4, 2]
    );
}