2018年HIMCM A题中英文对照 （解法思路在稍后给出）

Rollercoster

Problem A:Roller Coaster

过山车问题

There are several Roller Coasterrating/ranking sites online that, while taking some objective measuresinto account, heavily rely on subjective input to determinethe rating or ranking of a particular roller coaster (e.g., an"excitement" or "experience" score of an "expert"rider to measure "thrill"). 现在有很多过山车评级/排名的网站，他们在考虑一些客观的措施时，严重依赖主观输入来确定特定过山车的评级或排名，（比如说依靠某些所谓的专家游客乘坐时候主观”兴奋”或者“体验”的感受来评估到底刺不刺激）。

In addressing this HiMCM problem,consider only roller coasters currently in operation. We have provided data fora subset of operating roller coasters whose height, speed, and/or drop areabove the average of worldwide operating coasters. Therefore, we have notincluded family or kiddie coasters, nor have we included bobsled or mountaintype coasters. 在这个HIMCM问题中，我们将只考虑现在还在运营的过山车。这里我们提供的数据只是全球的某些过山车的数据，它们在高度、速度和/或者下降的快慢都高于全球平均水平。因此这些过山车并不包括适合家庭或者儿童乘坐的一些所谓的过山车，也不包括雪橇以及山地式过山车。

题目要求：
1. Create an objective quantitativealgorithm or set of algorithms to develop a descriptive roller coasterrating/ranking system based only on roller coaster numerical and descriptivespecification data (e.g., speed, duration of ride, steel or wood, drop).
     设计一个客观的定量算法或者算法集，以基于过山车参数和描述性的数据（例如，速度，乘坐时间，是钢还是木制的，跌落）来为它们评级/排序。
2. Use your algorithm(s) to developyour "Top 10 Roller Coasters in the World" list. Compare and discussthe rating/ranking results and descriptions from your team's algorithm(s) withat least two other rating/ranking systems found online.
   用你们的算法算出 “世界十大过山车” 的排名。并且跟至少两个其他网上的评级/排名系统比较，给出结果和描述 。
3. Describe the concept and designfor a user-friendly app that uses your algorithm(s) to help apotential roller coaster rider find a roller coaster that she or he would wantto ride. NOTE: You DO NOT need to program and/or write code for theapp. You are developing the concept and design for the app only.a
设计一款APP，来利用你们提出的算法来帮助寻找过山车的游客来找到她或他想要乘坐的过山车，这里强调要是用户友好型的APP 。注意：你们不需要真正去为应用程序编写和/或编写代码，只需要给出关键的概念和设计 。

4. Write a one-pagenon-technical News Release describing your new algorithm,results, and app.
  撰写一页的非技术新闻稿，描述你们提出的算法，结果和应用程序。

Your submission should consist of: 您的提交应包括：

• One-page Summary Sheet, 一页摘要表
• One-page News Release, 一页新闻稿
• Your solution of no more than 30 pages, for a maximum of 32 pages with yoursummary and news release. 最后的论文最好不超过30页，最多32页，其中包括摘要和新闻稿。|2 g# Z$ q3 u1 k9 P0 P4 J
• Note: Reference list and any appendices do not count toward the32-page limit and should appear after your completed solution.  注意：引用目录和任何附录不计入32页限制，应附在你们的论文的最后。