int main()
{
    int Board[9][9];
    Board = CreateBoard();   
    int difficulty = Difficulty();
    WriteFile(Board);
    Display(Board);
    system ("pause");
    return 0;
}
 
int CreateBoard()
{
    int row = 0;
    int column = 0;
    bool BoardStatus [9][9];  
    int Board [9][9];  // Creates the Sudoku board
    int BoardTemp;
    Reset(Board, BoardStatus);
    for (row = 0; row <= 8; row++) 
    {
        for (column = 0; column <= 8; column++)
        {
            while (BoardStatus [row][column] == false)
            {
               if (Board [row][column] == -1)
               {
                 Board [row][column] = Random_Number();  // a random number is placed inside every cell before the validation process begins in order to randomize each puzzle.
                 BoardTemp = Board [row][column];
               }
               BoardStatus [row][column] = Verify(Board, row, column);
               if (BoardStatus [row][column] == false)
               {
                     Board [row][column] = Board[row][column]+ 1;
                     if (Board [row][column] == 10) // A value inside a cell cannot be greater than 9.
                     {
                          Board[row][column] = 1;
                     }
                     if (BoardTemp == Board[row][column] )
                     {
                          Reset(Board, BoardStatus);
                          row = 0;
                          column = 0;     
                     }
               }            
            }
        }
    }
    return Board;
}

int CreateBoard(int Board[9][9])
{
   // all your code here
    return 0;
}
 
int main()
{
    int Board[9][9];
    CreateBoard(Board);   
    return 0;
}

typedef vector<int> COLUMNS;
vector<COLUMNS> Board;
 
//or you can do this too
vector< vector<int> > Board;