Câu 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 aRow, int aColumn, int bRow, int bComlumn)
{
    int t = 2;

    for (int j = 0; j < aColumn; j++)
    {
        int k = 0;

        for (int i = 0; i < aRow; i++)
        {
            b[i][t] = a[j][k];
            k++;
        }
        t--;
    }
}

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, bRow, bColumn);
    cout << endl;
    PrintMatrix(b, bRow, bColumn);
    system("pause");
}