#![allow(dead_code, deprecated, unused_variables, unused_mut)]
fn main() {
    let slice = [10, 40, 30, 20, 60, 50];
    let mut iter = slice.splitn(2, |num| *num % 3 == 0);
    assert_eq!(iter.next(), Some(& [10, 40] [..]));
    assert_eq!(iter.next(), Some(& [20, 60, 50] [..]));
    assert_eq!(iter.next(), None);
}