编程介的小学生 2017-08-13 13:42 采纳率: 20.5%
浏览 678
已采纳

Fractran

Description

To play the "fraction game" corresponding to a given list f1, f2, ..., fk of fractions and starting integer N, you repeatedly multiply the integer you have at any stage (initially N) by the earliest fi in the list for which the answer is integral. Whenever there is no such fi, the game stops.

Formally, we define a sequence by S0=N, and Sj+1=fiSj, if for 1<=i<=k, the number fiSj is an integer but the numbers f1Sj, ..., fi-1Sj are not.

For example, if we have the list of eight fractions f1=170/39, f2=19/13, f3=13/17, f4=69/95, f5=19/23, f6=1/19, f7=13/7, f8=1/3, and start with N=21, we produce the (finite) sequence (21,39,170,130,190,138,114,6,2). In general, the sequence may be infinite.

Given a fraction list and a starting integer calculate a part of the defined sequence. Actually, we are interested only in the powers of 2 that appear in the sequence.
Input

The input contains several test cases. Every test case starts with three integers m, N, k. You may assume that 1<=m<=40, 1<=N<=1000, and 1<=k<=100. Then follow k fractions f1, ..., fk. For each fraction, first its numerator is given, followed by its denominator. You may assume that both are positive integers less than 1000 and their greatest common divisor is 1. The last test case is followed by a zero.
Output

For each test case output on a line m numbers e1, ..., em, separated by one space character, such that 2e1, ..., 2ek are the first m numbers in the defined sequence that are powers of 2. You may assume that there are at least m powers of 2 among the first 7654321 elements of the sequence.
Sample Input

1 21 8 170 39 19 13 13 17 69 95 19 23 1 19 13 7 1 3
20 2 14 17 91 78 85 19 51 23 38 29 33 77 29 95 23 77 19 1 17 11 13 13 11 15 2 1 7 55 1
0
Sample Output

1
1 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67

  • 写回答

1条回答 默认 最新

  • threenewbee 2017-08-27 15:15
    关注
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

报告相同问题?

悬赏问题

  • ¥15 微信小程序协议怎么写
  • ¥15 c语言怎么用printf(“\b \b”)与getch()实现黑框里写入与删除?
  • ¥20 怎么用dlib库的算法识别小麦病虫害
  • ¥15 华为ensp模拟器中S5700交换机在配置过程中老是反复重启
  • ¥15 java写代码遇到问题,求帮助
  • ¥15 uniapp uview http 如何实现统一的请求异常信息提示?
  • ¥15 有了解d3和topogram.js库的吗?有偿请教
  • ¥100 任意维数的K均值聚类
  • ¥15 stamps做sbas-insar,时序沉降图怎么画
  • ¥15 买了个传感器,根据商家发的代码和步骤使用但是代码报错了不会改,有没有人可以看看