void rotate(int** matrix, int matrixRowSize, int matrixColSize) {

int n = matrixRowSize;

for (int i=0;i<n/2;i++)

for (int j=i;j<n-1-i;j++)

{

int tmp;

tmp = matrix[i][j];

matrix[i][j] = matrix[n-1-j][i];

matrix[n-1-j][i] = matrix[n-1-i][n-1-j];

matrix[n-1-i][n-1-j] = matrix[j][n-1-i];

matrix[j][n-1-i] = tmp;

}

}