编程介的小学生 2019-03-20 19:56 采纳率: 20.5%
浏览 236

序列的转置的算法的问题的计算的方式,使用C语言的编程算法技术

Problem Description
Let { A1,A2,...,An } be a permutation of the set{ 1,2,..., n}. If i < j and Ai > Aj then the pair (Ai,Aj) is called an "inversion" of the permutation. For example, the permutation {3, 1, 4, 2} has three inversions: (3,1), (3,2) and (4,2).
The inversion table B1,B2,...,Bn of the permutation { A1,A2,...,An } is obtained by letting Bj be the number of elements to the left of j that are greater than j. (In other words, Bj is the number of inversions whose second component is j.) For example, the permutation:
{ 5,9,1,8,2,6,4,7,3 }
has the inversion table
2 3 6 4 0 2 2 1 0
since there are 2 numbers, 5 and 9, to the left of 1; 3 numbers, 5, 9 and 8, to the left of 2; etc.
Perhaps the most important fact about inversions is Marshall Hall's observation that an inversion table uniquely determines the corresponding permutation. So your task is to convert a permutation to its inversion table, or vise versa, to convert from an inversion table to the corresponding permutation.

Input
The input consists of several test cases. Each test case contains two lines.
The first line contains a single integer N ( 1 <= N <= 50) which indicates the number of elements in the permutation/invertion table.
The second line begins with a single charactor either 'P', meaning that the next N integers form a permutation, or 'I', meaning that the next N integers form an inversion table.

Output
For each case of the input output a line of intergers, seperated by a single space (no space at the end of the line). If the input is a permutation, your output will be the corresponding inversion table; if the input is an inversion table, your output will be the corresponding permutation.

Sample Input
9
P 5 9 1 8 2 6 4 7 3
9
I 2 3 6 4 0 2 2 1 0
0

Sample Output
2 3 6 4 0 2 2 1 0
5 9 1 8 2 6 4 7 3

  • 写回答

0条回答 默认 最新

    报告相同问题?

    悬赏问题

    • ¥15 一道python难题2
    • ¥15 一道python难题
    • ¥15 用matlab 设计一个不动点迭代法求解非线性方程组的代码
    • ¥15 牛顿斯科特系数表表示
    • ¥15 arduino 步进电机
    • ¥20 程序进入HardFault_Handler
    • ¥15 oracle集群安装出bug
    • ¥15 关于#python#的问题:自动化测试
    • ¥20 问题请教!vue项目关于Nginx配置nonce安全策略的问题
    • ¥15 教务系统账号被盗号如何追溯设备