reorder

main.rs

/// Given an array of objects A, and an array of indexes B, reorder the objects in array A with the given indexes in array B.
/// Example:
/// let a = [C, D, E, F, G, H];
/// let b = [3, 0, 4, 1, 2, 5];
/// $ reorder(a, b) // a is now [D, F, G, C, E, H]

fn main() {
    let res = reorder(vec!["C", "D", "E", "F", "G", "H"], vec![3, 0, 4, 1, 2, 5]);

    println!("{:?}", &res)
}

fn reorder<T: Clone + Copy>(vals: Vec<T>, idx: Vec<usize>) -> Vec<T> {
    let mut ret: Vec<T> = vals.clone();

    for (pos, i) in idx.iter().enumerate() {
        ret[i.clone()] = vals[pos];
    }

    return ret;
}