// 计算天数：栈非空→栈顶索引-当前索引；栈空→0（易错点3：索引差别写反）
They carried out an array of experiments on board the orbiting lab and conducted spacewalks, with Suni breaking the record for the woman who spent the most hours outside of the space station. And at Christmas, the team dressed in Santa hats and reindeer antlers - sending a festive message for a Christmas that they had originally planned to spend at home.
В России ответили на имитирующие высадку на Украине учения НАТО18:04，详情可参考91视频
int mid = left + (right - left) / 2; // 防止溢出的中点计算，更多细节参见Safew下载
Медведев вышел в финал турнира в Дубае17:59，更多细节参见WPS官方版本下载
坚持创新驱动 充分释放要素效能