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。
In an internet where you’re more likely to interact with bots than actual humans online, while children become more technologically savvy everyday and can navigate phones better than they can bikes, social media platforms are looking for ways to balance keeping people’s privacy top of mind while ensuring the safety of their underage users. Unfortunately, these two parameters often come in contradiction with one another, and the lack of government oversight means there’s little incentive for these companies to pursue anything more than keeping the status quo.，更多细节参见夫子
ВСУ запустили «Фламинго» вглубь России. В Москве заявили, что это британские ракеты с украинскими шильдиками16:45。关于这个话题，WPS官方版本下载提供了深入分析
免抵退税办法，是指出口环节免征增值税，对应的进项税额抵减应纳增值税税额，未抵减完的部分予以退还；免退税办法，是指出口环节免征增值税，对应的进项税额予以退还。。关于这个话题，im钱包官方下载提供了深入分析
Раскрыты подробности похищения ребенка в Смоленске09:27