Answer 2D14

void rotate( int nrows, int ncols, int x[nrows][ncols]  )
{
  int r, c, elt00;

  elt00 = x[0][0];
  for ( r=0; r<nrows; r++ )
  {
    for ( c=0; c<ncols-1; c++ )
      x[r][c] = x[r][c+1];
    
    if ( r < nrows-1 )
      x[r][ncols-1] = x[r+1][0];
    else
      x[r][ncols-1] = elt00;
  }
  
}