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。
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，详情可参考爱思助手下载最新版本
Ongoing improvements of our rendering infrastructure will help ensure that that is the case.，更多细节参见51吃瓜
Sign up for or add a line to any T-Mobile Experience Beyond plan and get the Samsung Galaxy S26 Ultra (256GB) for free with no trade-in required. You'll need to be cool with signing up to 24 months of service to cash in on the "free" aspect. T-Mobile will charge taxes and a $35 device connection fee. In total, you'll be saving $1,299.99 by getting the phone for free. If you want to go with the larger 512GB Galaxy S26 Ultra, you can still get a deal on the phone since T-Mobile will charge a monthly fee of $8.33.