ARGH.rs

fn solution(s: &str) -> Vec<String> {
    let mut pile_of_strings = Vec::new();
    let slice: &[char] = &s.chars().collect::<Vec<_>>()[..];
    for piece in slice.chunks(2) {
	if piece.len() > 1 {
	    pile_of_strings.push(piece.iter().collect());
	} else {
	    // let squished : &str = &[piece,&['_']].concat();
	    pile_of_strings.push(&[piece, &['_']].concat().iter().collect());
	    // pile_of_strings.push(&'_');
	}
    }
    return pile_of_strings;
}