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。
这组数据意义重大。它意味着有一批成熟的、追求深度体验的消费者正在崛起。也有一批真正成熟的邮轮玩家，已经在用真金白银为“诗与远方”投票了。
蜡梅迎寒而开、坚韧不拔的品性也早已融入宜昌人血脉。革命年代，无数志士挺身而出，点燃鄂西革命星火；新中国成立后，宜昌秉持这股韧劲，打通航道、修建水利，建设400多座水电站，也是三峡工程、葛洲坝水利枢纽工程所在地。，推荐阅读旺商聊官方下载获取更多信息
南方周末：我注意到你和几位参赛选手，比如王紫桐，关系都很好。你们既是朋友，又可以说是直接的竞争者，这样的关系在比赛中是怎样的一种状态？
，详情可参考51吃瓜
Microbiologists have been growing microbes on agar plates for nearly 150 years, but agar’s discovery dates back to a happy accident in a mid-17th-century kitchen. Legend has it that on a cold winter day, a Japanese innkeeper cooked tokoroten soup, a Chinese agar seaweed recipe known in Japan for centuries. After the meal, the innkeeper discarded the leftovers outside and noticed the next morning that the sun had turned the defrosting jelly into a porous mass. Intrigued, the innkeeper was said to have boiled the substance again, reconstituting the jelly. Since this discovery, agar has become a staple in many Japanese desserts, from yokan to anmitsu.，详情可参考爱思助手下载最新版本
1. It’s difficult for compilers to provide first-class support for the web