bài 2

#include <iostream>

using namespace std;
/*
a[][100]: matrix a
aRow: row number of matrix a
aColumn: column number of matrix a
*/
void ImportMaxtrix(int a[][100], int aRow, int aColumn)
{
    for (int i = 0; i < aRow; i++)
        for (int j = 0; j < aColumn; j++)
        {
            cout << "A[" << i << "][" << j << "] = ";
            cin >> a[i][j];
        }
}

void PrintMatrix(int a[][100], int aRow, int aColumn)
{
    for (int i = 0; i < aRow; i++)
    {
        for (int j = 0; j < aColumn; j++)
        {
            cout << a[i][j];
            cout << "   ";
        }
        cout << endl;
    }
}
//Rotate matrix 90 degree
void Rotate90(int a[][100], int b[][100], int hang, int cot)
{
    for (int i = 0; i <= hang - 1; i++)
    {
        for (int j = 0; j <= cot - 1; j++)
        {
            cout << endl;
            for (int k = hang - 1; k >= 0; k--)
            {
                b[j][i] = a[k][j];
                cout << b[j][i] << "   ";
            }
        }
    }
}

int main() {
    int a[100][100];
    int b[100][100];
    int aRow = 3, aColumn = 3, bRow = 3, bColumn = 3;
    ImportMaxtrix(a, aRow, aColumn);
    PrintMatrix(a, aRow, aColumn);
    Rotate90(a, b, aRow, aColumn );
    cout << endl;
    PrintMatrix(b, bRow, bColumn);
    system("pause");
}