public static void AddNumNodeNull(int row, int col)
{
NumBlockFix.Clear();
int x = HandleSudoku.NumStart(row);
int y = HandleSudoku.NumStart(col);
for (int i = x; i < x + 3; i++)
{
for (int j = y; j < y + 3; j++)
{
if (HandleSudoku.BoardCheck[i, j] != 0)
{
NumBlockFix.Add(HandleSudoku.BoardCheck[i, j]);
}
}
}
int VNum = 0;
do
{
Random random = new Random();
VNum = random.Next(1, 10);
for (int i = 0; i < NumBlockFix.Count; i++)
{
if (NumBlockFix[i] == VNum)
{
VNum = 0;
}
}
} while (VNum == 0);
NumBlockFix.Add(VNum);
HandleSudoku.BoardCheck[row, col] = VNum;
}
// tô màu các toa dộ dòng cọ bị block
public static void LoadBlockRCB(int[,] Board, int Num)
{
BoxBlock.Clear();
RowBlock.Clear();
ColBlock.Clear();
for (int i = 0; i < 9; i++)
{
for (int j = 0; j < 9; j++)
{
if (Board[i, j] == Num)
{
RowBlock.Add(i);
ColBlock.Add(j);
BoxBlock.Add(new Point(HandleSudoku.NumStart(i), HandleSudoku.NumStart(j)));
}
}
}
}
