矩阵顺时针旋转90度c++

使用以下代码实现矩阵顺时针旋转90度：

#include <iostream>
using namespace std;

const int N = 4;

class Array {
private:
    int a[N][N];
public:
    Array(int b[N][N]) {
        for (int i = 0; i < N; i++) {
            for (int j = 0; j < N; j++) {
                a[i][j] = b[i][j];
            }
        }
    }
    void rotate() {
        for (int i = 0; i < N / 2; i++) {
            for (int j = i; j < N - i - 1; j++) {
                int temp = a[i][j];
                a[i][j] = a[N - j - 1][i];
                a[N - j - 1][i] = a[N - i - 1][N - j - 1];
                a[N - i - 1][N - j - 1] = a[j][N - i - 1];
                a[j][N - i - 1] = temp;
            }
        }
    }
    void print() {
        for (int i = 0; i < N; i++) {
            for (int j = 0; j < N; j++) {
                cout << a[i][j] << " ";
            }
            cout << endl;
        }
    }
};

int main() {
    int b[N][N] = {{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 10, 11, 12}, {13, 14, 15, 16}};
    Array arr(b);
    arr.rotate();
    arr.print();
    return 0;
}