Originally Posted by forgoodor4awsum

we are to write the entire code..here is the project
"Your Sudoku class should have a constructor, and a “read” function that reads in the file “Sudoku_game.txt,” a 9 by 9 matrix of digits from 0 to 9. (Zero indicates that no number has been put in that cell.) Your class should also have a print function, a test for whether the current state of the game is one that cannot work (violating some of the constraints, such as two 3‟s in the same box), a test to tell whether all the cells have been filled with a number, and a function that would allow a player to enter numbers in the open cells of the game. The main function should create an empty game, read a file into the game, print the current state of the game board, and then allow the player to add numbers (using row and column numbers) to complete the puzzle. After each number entered, the game should decide if the game is still winnable (that is, whether any of the constraints have already been violated.) If the last number entered won‟t work, print an error message and change the number back to zero. If the player successfully completes the game, entering the last number without violating the rules, the program should print a congratulatory message and quit. If the last cell is filled with a number, but the solution is not correct, the game should print a sympathetic message."

but i am starting small..and right now just trying to get the board to print out.
the txt file they give us has this:
"6 5 9 4 1 3 2 8 7
7 4 3 2 9 8 1 6 5
1 8 2 5 6 7 9 4 3
9 1 4 3 2 5 8 7 6
3 7 8 6 4 9 5 1 2
2 6 5 7 8 1 4 3 9
4 3 7 1 5 2 6 9 8
5 9 1 8 3 6 7 2 4
0 0 0 0 0 0 0 0 0
"
where the "0" are suppose to be blank places to be filled in.

how would i get this txt document to print out in the manner i mentioned in my previous thread.

Originally Posted by forgoodor4awsum

ok for my void DisplayBoard function i have this :

void DisplayBoard (int grid[9][9]) // display grid. use nested for-loop
{
cout << "\t+---+---+---+" << endl;
for (int a=0; a<9; a++) {
cout << "\t| ";
for (int b=0; b<9; b++)
cout << grid[a][b] << " | ";
cout << endl;
cout << "\t+---+---+---+" << endl;
}


but when it displays it has "-858993460" in each area...?

my ultimate goal is to have the txt document provide the numbers to go in each block on the game board

Originally Posted by forgoodor4awsum

am i close by thinking it is done this way.

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ifstream in("sudoku_game.txt");
 
int grid[9][9] = "sudoku_game.txt");

ifstream in("sudoku_game.txt"); int grid[9][9] = "sudoku_game.txt");

THANKS FOR THE HELP!

Originally Posted by VernonDozier

No, that is not close.

http://www.cplusplus.com/doc/tutorial/files.html

The general idea is this. See my prior post on the ReadFile function and the tutorial above. That's the idea. Use my program as a skeleton.

This line is fine:

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ifstream in("sudoku_game.txt");

ifstream in("sudoku_game.txt");

This line isn't:

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int grid[9][9] = "sudoku_game.txt");

int grid[9][9] = "sudoku_game.txt");

This is better:

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ifstream in("sudoku_game.txt");
for (i = ?;?;?)
{
     for (j = ?;?;?)
     {
         in >> grid[i][j];
     }
}
in.close ();

ifstream in("sudoku_game.txt"); for (i = ?;?;?) { for (j = ?;?;?) { in >> grid[i][j]; } } in.close ();

Originally Posted by forgoodor4awsum

so far i have this as my printBoard

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int a,b;
	int grid[9][9];
 
	ifstream gameBoard;
	gameBoard.open("sudoku_game.txt");
 
	gameBoard >> grid[9][9];
 
 
	gameBoard.close();
 
	for (int a=0; a<9; a++) {
 
		cout << "\t| ";
	}
 
 
	for (int b=0; b<9; b++){
 
			cout << grid[a][b] << " | ";
		cout << endl;
		cout << "\t-------------------------------" << endl;
	}

int a,b; int grid[9][9]; ifstream gameBoard; gameBoard.open("sudoku_game.txt"); gameBoard >> grid[9][9]; gameBoard.close(); for (int a=0; a<9; a++) { cout << "\t| "; } for (int b=0; b<9; b++){ cout << grid[a][b] << " | "; cout << endl; cout << "\t-------------------------------" << endl; }

but it still isnt printing out the numbers in the txt document.