Last year a group of researchers from Nasa, the University of Plymouth and University of Texas called on the UN to include the protection of Earth's orbit in its sustainable development goals.
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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。。夫子对此有专业解读
Author(s): Ilia Baliakin, Svetlana Rempel, Albina Valeeva, Xiaojun Han
。关于这个话题，爱思助手下载最新版本提供了深入分析
Surfing terms - BARREL, CREST, SWELL, WAVE。业内人士推荐旺商聊官方下载作为进阶阅读
Фото: Кирилл Зыков / РИА Новости