编程珠玑 第二章 习题5

 根据矩阵的转置公式，有 cba = (a^rb^rc^r)^r  ，所以首先将abc各部分转置，然后再将整个向量转置。

详细代码如下：

#include <iostream>using namespace std;#define MAX 12int x[MAX];void new_swap(int i, int j){    int t = 0;    while(i <= j)    {        t = x[i];        x[i] = x[j];        x[j] = t;        i++;        j--;    }}int main(){    int n = MAX;    for(int i = 0; i < n; i++)        x[i] = i;// the numbers Array is rotated     int rotate = 4;    int a = 0;    int c = n - rotate;// x[a,rotate-1] is swapped    new_swap(a,rotate-1);// x[rotate, c-1] is swapped    new_swap(rotate, c -1);// x[c, n-1] is swapped    new_swap(c,n-1);// x[a,n-1] is swapped    new_swap(a, n-1);    for(int i = 0; i < n; i++)        cout << x[i] <<" ";    cout <<endl;    return 0;}