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。
统一输出 JSON，便于落地执行和审计：
，推荐阅读safew官方下载获取更多信息
Жители Санкт-Петербурга устроили «крысогон»17:52
A developer wanting to use a new Web API must first understand it from a JavaScript perspective, then translate it into the types and APIs that are available in their source language. Toolchain developers can try to manually translate the existing web documentation for their language, but that is a tedious and error prone process that doesn’t scale.，这一点在雷电模拟器官方版本下载中也有详细论述
Green screen effects without actual green screen。Line官方版本下载是该领域的重要参考
Palantir Sues Swiss Magazine For Accurately Reporting That The Swiss Government Didn’t Want Palantir