public class MineSweeper
{	private int[][] myTruth;
	private boolean[][] myShow;
	
	public void cellPicked(int row, int col)
	{	if( inBounds(row, col) && !myShow[row][col] )
		{	myShow[row][col] = true;
		
			if( myTruth[row][col] == 0)
			{	for(int r = -1; r <= 1; r++)
					for(int c = -1; c <= 1; c++)
						cellPicked(row + r, col + c);
			}	
		}
	}
	
	public boolean inBounds(int row, int col)
	{	return 0 <= row && row < myTruth.length && 0 <= col && col < myTruth[0].length;
	}
}