int CountAdjacent(int row, int col, int Matrix[rows][columns])
{
    int Row, Column, count = 0;
    for (int c = -1; c <= 1; c++)
        for (int r = -1; r <= 1; r++)
        {
            if (c == r == 0) // skip element itself
                continue;
            Row = row + r;
            Column = col + c;
            if (Row < 0 || Row > rows - 1 || Column < 0 || Column > columns - 1) // array borders check
                continue;
            if (Matrix[row][col] == Matrix[Row][Column])
                count++;
        }
    return count;
}