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Dury said it was a "battle against time" to get the picture, which he captured using a wide lens.，更多细节参见91视频
，更多细节参见WPS下载最新地址
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。，详情可参考一键获取谷歌浏览器下载
sum of weights += candidate.weight