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。
Customers can pre-order the new iPad Air with M4 starting Wednesday, March 4, at apple.com and in the Apple Store app in 35 countries and regions, including the U.S. It will begin arriving to customers, and will be in Apple Store locations and Apple Authorized Resellers, starting Wednesday, March 11.
。业内人士推荐WPS官方版本下载作为进阶阅读
The supreme court on Monday sided with Republicans in ruling that the boundaries of the only GOP-held congressional district in New York City do not not need to be redrawn for the 2026 elections, despite a court ruling that the district is unfair to Black and Hispanic residents.。关于这个话题，体育直播提供了深入分析
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