Question

Write a C++ program, tictac.cpp, that repeatedly reads in tic-tac-toe boards and for each one indicates if there is a winner and who won.

The board will be read in as 3x3 array of characters (x, o or . for a blank spot).

You are required to write the following functions to help solve the problem:

// input prompts the user for a board and inputs it

// into the given array

void input (char board [3][3]);

// print prints the board in nice format

void print (char board [3][3]);

// win returns true if the given player has won on the

// given board, else it returns false

bool win (char board [3][3], char player);

You are required to use nested loops to write the functions input and print.

The back of this page shows a sample run of the program (input in bold). Your output should look at least as nice as that shown. You may assume that the board will be legal and there will be at most one winner.

Enter your board as characters (x, o or .):

o.x

..o

.x.

The board is:

o |   | x

-----------

   |   | o

-----------

   | x |

No winner!

Would you like to do another (y or n)? y

Enter your board as characters (x, o or .):

oxo

ox.

.xo

The board is:

o | x | o

-----------

o | x |

-----------

   | x | o

X wins!

Would you like to do another (y or n)? y

Enter your board as characters (x, o or .):

xoo

xox

ox.

The board is:

x | o | o

-----------

x | o | x

-----------

o | x |

O wins!

Would you like to do another (y or n)? n

Thanks for playing!

Answer 1

#include<iostream>
#include<cstdlib>
using namespace std;
 
class TicTacToe{
      public:
             void print();
             void play();
             char determine();
             TicTacToe();
 
      private:
              int p1x,p1y;
              int p2x,p2y;
              char TicTacToeBoard[3][3];
      };
 
 
 
      TicTacToe::TicTacToe(){
               char TicTacToeBoard[3][3] = {{'!','!','!'},{'!','!','!'},{'!','!','!'} }; // fill board
               TicTacToeBoard[p1x][p1y] = 'X'; // put x where p1 has coordinates
               TicTacToeBoard[p2x][p2y] = 'O'; // put y where p1 has coordinates
                             }
 
int main(){
 
          TicTacToe playgame,winner; //create objects of type TicTacToe
          playgame.play(); // play game
          winner.determine(); // determine winner
 
          system("pause");
          return 0;
          }    
 
 
void TicTacToe::print(){ // for printing board
 
     int row;
     int col;
     cout << "----------------------" << endl;
     for(row = 0;row < 3; row++){
             for(col = 0;col < 3; col++){
                     cout << TicTacToeBoard[row][col];
                     }
                     cout << endl;
                     }
     cout << "----------------------" << endl;                
}
 
void TicTacToe::play(){ // play game
 
     TicTacToe showboard;
     int turn = 1;
     while(turn <= 9){ 
 
     // let player 1 enter coordinates
     cout << "Player 1" << endl;
     cout << "X:";
     cin >> p1x;
 
     cout << "Y:";
     cin >> p1y;
     showboard.print(); // print board
     cout << endl;
 
     turn++;
     // let player 2 enter coordinates
     cout << "Player 2" << endl;
     cout << "X:";
     cin >> p2x;
 
     cout << "Y:";
     cin >> p2y;
     showboard.print(); // print board
     cout << endl;
 
     turn++;
 
 
 
     }
 
     }
 
char TicTacToe::determine(){ // determine the winner might be incorrect
 
    if( TicTacToeBoard[0][0]==TicTacToeBoard[0][1] && TicTacToeBoard[0][1] == TicTacToeBoard[0][2] ){
        return TicTacToeBoard[0][0];
        }
        else if( TicTacToeBoard[1][0]==TicTacToeBoard[1][1] && TicTacToeBoard[1][1] == TicTacToeBoard[0][2] ){
        return TicTacToeBoard[1][0];
        }
        else if( TicTacToeBoard[2][0]==TicTacToeBoard[2][1] && TicTacToeBoard[2][1] == TicTacToeBoard[0][2] ){
        return TicTacToeBoard[2][0];
        }
 
    else if( TicTacToeBoard[0][0]==TicTacToeBoard[1][0] && TicTacToeBoard[1][0] == TicTacToeBoard[2][0] ){
        return TicTacToeBoard[0][0];
        }
    else if( TicTacToeBoard[0][1]==TicTacToeBoard[1][1] && TicTacToeBoard[1][1] == TicTacToeBoard[2][1] ){
        return TicTacToeBoard[0][1];
        }
    else if( TicTacToeBoard[0][2]==TicTacToeBoard[1][2] && TicTacToeBoard[1][2] == TicTacToeBoard[2][2] ){
        return TicTacToeBoard[0][2];
        } 
 
    else if( TicTacToeBoard[0][0]==TicTacToeBoard[1][1] && TicTacToeBoard[1][1] == TicTacToeBoard[2][2] ){
        return TicTacToeBoard[0][0];
        }
    else if( TicTacToeBoard[0][2]==TicTacToeBoard[1][1] && TicTacToeBoard[1][1] == TicTacToeBoard[2][2] ){
        return TicTacToeBoard[0][2];
        }
    else return ' ';    
 
}