#include <stdio.h>
 

void enter_symbol(char tictactoe[][3], int player);
void fill_board(char tictactoe[][3]);
void print_board(char tictactoe[][3]);
int if_winner(char tictactoe[][3]);


int main(void)
{
   char tictactoe[3][3];
   int game_over = 0;
   int player = 1;
   int count;

   fill_board(tictactoe);
   printf("\nWelcome to the TicTacToe game!\n");

   for (count = 1; count <= 9 && game_over == 0; count++) {
      enter_symbol(tictactoe, player);
      print_board(tictactoe);
      game_over = if_winner(tictactoe);
      /* change player */
      if (player == 1)
         player = 2;
      else
         player = 1;
   }

   if (game_over == 1)
      printf("\nCongratulations player 1. You have won!!!\n");
   else if (game_over == 2)
      printf("\nCongratulations player 2. You have won!!!\n");
   else
      printf("\nThe game is a tie!\n");

   return(0);
}

void fill_board(char tictactoe[][3])
{
   int i, j;

   for (i = 0; i < 3; i++) 
      for (j = 0; j < 3; j++)
         tictactoe[i][j] = '.';
}

void print_board(char tictactoe[][3])
{
   int i, j;

   printf("-------------\n");
   for (i = 0; i < 3; i++) {
      printf("|");
      for (j = 0; j < 3; j++) 
         printf(" %c |", tictactoe[i][j]);
      printf("\n-------------\n");
   }
}

void enter_symbol(char tictactoe[][3], int player)
{
   int row, col;
   
   printf("\nPlayer %d, enter the coordinates of your move\n", player);
  printf("... row (1, 2, or 3)> ");
   scanf("%d", &row);
   printf("... column (1, 2, or 3)> ");
   scanf("%d", &col);
   if (player == 1)
      tictactoe[row-1][col-1] = 'X';
   else
      tictactoe[row-1][col-1] = 'O';
}

int if_winner(char tictactoe[][3])
{
   return(0);
}