C ++ 8乘8板

Question

im trying to implement the n-queen problem board game and im having problems with the board so what am i doing wrong here in this displayboard function? its suppose to implement an 8 by 8 empty board sorry im just a beginner

#include <iostream>
#include <limits>

using namespace std;

const int rows = 8;
const int columns =8;

int board[rows][columns] = {0,0};

void displayboard();

int main(){

displayboard();

system("pause");

}
void displayboard ()
{

cout << "  1 2 3 4 5 6 7 8" << endl;
cout << "  ---------------";

for (int bRow = 0; bRow<rows; bRow++)
 {
 for (int bCol = 0; bCol<columns; bCol++)

  if (board[bRow][bCol] == 0)
         cout << " ";
  else 
      cout << " ";
  } 
 cout << endl;

  return;
 }

Answer 1

if (board[bRow][bCol] == 0)
      cout << " ";
else 
      cout << " ";

?? Both do the same thing ! Printing a blank space. Moreover, you haven't populated your array board[8][8] anything other than 0 s.

Answer 2

You missed the newlines and possible the white spaces per row. here is a fixed version: (I used a '.' to denote an (empty) field - as it is friendlier to human debugging)

  1 2 3 4 5 6 7 8
  ---------------
  . . . . . . . . 
  . . . . . . . . 
  . . . . . . . . 
  . . . . . . . . 
  . . . . . . . . 
  . . . . . . . . 
  . . . . . . . . 
  . . . . . . . . 

Code

#include <iostream>
#include <limits>

using namespace std;

const int rows = 8;
const int columns =8;

int board[rows][columns] = {0,0};

void displayboard();

int main()
{
    displayboard();
}

void displayboard ()
{
    cout << "  1 2 3 4 5 6 7 8" << endl;
    cout << "  ---------------";

    for (int bRow = 0; bRow<rows; bRow++)
    {
        cout << "\n  ";
        for (int bCol = 0; bCol<columns; bCol++)
        {
            if (board[bRow][bCol] == 0)
            {
                cout << ".";
            }
            else
            {
                cout << ".";
            }
            cout << " "; // delimiter
        }
    }
    cout << endl;

    return;
}