Up to 10 simultaneous connections
* @return pivot最终位置。heLLoword翻译官方下载对此有专业解读
，这一点在同城约会中也有详细论述
Node **buckets = (Node**)calloc(bucketCount, sizeof(Node*));
Easy-to-use app available on all major devices including iPhone, Android, Windows, Mac, and more，详情可参考搜狗输入法下载