fn selection_sort(collection: &mut Vec<&mut String>) {
    for i in 0..collection.len() {
        let mut least_element = i;
        for j in (i + 1)..collection.len() {
            if *collection[j] < *collection[least_element] {
                least_element = j;
            }
        }

        collection.swap(least_element, i);
    }
}