Reorder List

Problem

Rearrange a list so that the order is the first element, then the last element, followed by the second element, then the second-last element, and so on.

Examples

reorderList([1,2,3,4])
// returns [1,4,2,3]
/* Input: 1 -> 2 -> 3 -> 4
Output: 1 -> 4 -> 2 -> 3 */

reorderList([1,2,3])
// returns [1,3,2]
/* Input: 1 -> 2 -> 3
Output: 1 -> 3 -> 2 */