编程介的小学生 2019-08-29 22:31 采纳率: 20.5%
浏览 56

交换率的问题,Exchange Rates

Problem Description
Now that the Loonie is hovering about par with the Greenback, you have decided to use your $1000 entrance scholarship to engage in currency speculation. So you gaze into a crystal ball which predicts the closing exchange rate between Canadian and U.S. dollars for each of the next several days. On any given day, you can switch all of your money from Canadian to U.S. dollars, or vice versa, at the prevailing exchange rate, less a 3% commission, less any fraction of a cent.
Assuming your crystal ball is correct, what's the maximum amount of money you can have, in Canadian dollars, when you're done?

Input
The input contains a number of test cases, followed by a line containing 0. Each test case begins with 0 <d ≤ 365, the number of days that your crystal ball can predict. d lines follow, giving the price of a U.S. dollar in Canadian dollars, as a real number.

Output
For each test case, output a line giving the maximum amount of money, in Canadian dollars and cents, that it is possible to have at the end of the last prediction, assuming you may exchange money on any subset of the predicted days, in order.

Sample Input
3
1.0500
0.9300
0.9900
2
1.0500
1.1000
0

Sample Output
1001.60
1000.00

  • 写回答

0条回答 默认 最新

    报告相同问题?

    悬赏问题

    • ¥15 执行 virtuoso 命令后,界面没有,cadence 启动不起来
    • ¥50 comfyui下连接animatediff节点生成视频质量非常差的原因
    • ¥20 有关区间dp的问题求解
    • ¥15 多电路系统共用电源的串扰问题
    • ¥15 slam rangenet++配置
    • ¥15 有没有研究水声通信方面的帮我改俩matlab代码
    • ¥15 ubuntu子系统密码忘记
    • ¥15 保护模式-系统加载-段寄存器
    • ¥15 电脑桌面设定一个区域禁止鼠标操作
    • ¥15 求NPF226060磁芯的详细资料