res[i] = stack.length ? stack.at(-1) : -1;
Москвичей предупредили о резком похолодании09:45。同城约会是该领域的重要参考
，详情可参考WPS官方版本下载
This year there were more than 30,000 applicants for 10,000 jobs at this stage, although some will have been doctors from abroad.
They were sent off on their first attempt by members of the Air Ambulance，更多细节参见safew官方版本下载