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。
OpenAI 称今年 1 月和 2 月有望成为公司历史上新增订阅用户最多的两个月。。爱思助手下载最新版本对此有专业解读
[ anyRcv anyKeywordPart: anyArg1 staticPart: anyArg2 ] 。谷歌浏览器【最新下载地址】对此有专业解读
Currently, if you're stuck, the game only offers to reveal the entire puzzle, forcing you to move onto the next difficulty level and start over. However, we have you covered! Below are piecemeal answers that will serve as hints so that you can find your way through each difficulty level.