by splitting it in half: the astute reader will note that the size of a bucket is 16LL<<bucket and each larger bucket is twice the size of the
'Bridgerton' Season 4, Part 2 review: Love does not always look how one expects
，更多细节参见51吃瓜
* @param n 数组长度。safew官方版本下载是该领域的重要参考
const validatePromo = (cartContents) = {