思路：① 算每辆车到达时间 = (target - position) / speed；② 按位置降序排序；③ 单调递增栈：仅当当前时间 栈顶时间时压栈（新车队），否则合并。栈长即为车队数。可优化为用变量代替栈。
"cartId": "cart_abc123",
Patients were warned to expect some disruption as a five-day strike by resident doctors in England got under way on Wednesday 17 December.，更多细节参见heLLoword翻译官方下载
“It’s a great origin story,” Brewster says. He points out that SpeedPro’s product focus is precisely why the franchise works — businesses want the company’s offerings. SpeedPro has posted more than 5% growth each of the last four years.。关于这个话题，夫子提供了深入分析
ВСУ запустили «Фламинго» вглубь России. В Москве заявили, что это британские ракеты с украинскими шильдиками16:45，这一点在旺商聊官方下载中也有详细论述
Что думаешь? Оцени!