This is the game of tic tac toe using C-program

#include <stdio.h>

#include <stdlib.h>

char matrix[3][3];



main()

{
char done;

printf("This is the game of tic tac toe...\n");

printf("You will be playing against the computer.\n");

done = ' ';



init_matrix();
do {



disp_matrix();

get_player_move();

done = check();
if (done != ' ') break;



get_computer_move();

done = check();
} while (done == ' ');

if (done == 'X') printf("\n\nYou won!!!\n");

else printf("I won!!!\n");



disp_matrix();

getch();

}
/**********************************************************/




/* fuction to initialise matrix */




/**********************************************************/



init_matrix()

{
int i, j;

for (i = 0; i<3; i++)

for (j = 0; j<3; j++)

matrix[i][j] = ' ';



}
/**********************************************************/




/* fuction to get players move */




/**********************************************************/



get_player_move()

{
int x, y;

printf("Enter coordinates(x,y) of your X: ");

scanf("%d%d", &x, &y);



x--; y--;
if (matrix[x][y] != ' ') {

printf("Invalid move, try again...\n");



get_player_move();

}
else matrix[x][y] = 'X';



}
/**********************************************************/




/* fuction to get computer move */




/**********************************************************/



get_computer_move()

{
int i, j;

for (i = 0; i<3; i++) {

for (j = 0; j<3; j++)

if (matrix[i][j] == ' ') break;

if (matrix[i][j] == ' ') break;



}
if (i*j == 9) {

printf("draw....\n");



getch();

exit(0);

}
else matrix[i][j] = 'O';



}
/**********************************************************/




/* fuction to display matrix */




/**********************************************************/



disp_matrix()

{
int t;

printf(" 1 2 3\n");

for (t = 0; t<3; t++) {

printf(" %c | %c | %c %d", matrix[t][0],



matrix[t][1], matrix[t][2], t + 1);
if (t != 2) printf("\n---|---|---\n");



}
printf("\n");



}
/**********************************************************/




/* fuction to check matrix */




/**********************************************************/



check()

{
int i;

for (i = 0; i<3; i++)

if (matrix[i][0] == matrix[i][1] && matrix[i][0] == matrix[i][2])

return matrix[i][0];

for (i = 0; i<3; i++)

if (matrix[0][i] == matrix[1][i] && matrix[0][i] == matrix[2][i])

return matrix[0][i];

if (matrix[0][0] == matrix[1][1] && matrix[1][1] == matrix[2][2])

return matrix[0][0];

if (matrix[0][2] == matrix[1][1] && matrix[1][1] == matrix[2][0])

return matrix[0][2];

return ' ';



}


Out put