char box[10]={'0','1','2','3','4','5','6','7','8','9'};
void create_board();
void make_board(int, char);
int check_win();
int main()
{
int choice,player=1,i;
char mark;
do{
create_board();
player= (player % 2) ? 1: 2;
printf("Player %d, enter a number: ",player);
scanf("%d",&choice);
mark = (player==1) ? 'X' : 'O';
make_board(choice,mark);
i=check_win();
player++;
}while(i == -1);
create_board();
if(i==1)
printf("Player %d you have won the game",--player);
else
printf("< draw ="">");
return 0;
}
void create_board()
{
clear_screen;
printf("\n\n\tTic Tac Toe\n\n");
printf("Player 1 (X) -- Player 2 (O)\n\n");
printf(" | | \n");
printf(" %c | %c | %c \n",box[1],box[2],box[3]);
printf("__________|________|__\n");
printf(" | | \n");
printf(" %c | %c | %c \n",box[4],box[5],box[6]);
printf("__________|__________|__\n");
printf(" | | \n");
printf(" %c | %c | %c \n",box[7],box[8],box[9]);
printf("____________|___________|__\n");
printf(" | | \n");
}
void make_board( int choice, char mark)
{
if(choice==1 && box[1]=='1')
box[1]=mark;
else if(choice==2 && box[2]=='2')
box[2]=mark;
else if(choice==3 && box[3]=='3')
box[3]=mark;
else if(choice==4 && box[4]=='4')
box[4]=mark;
else if (choice==5 && box[5]=='5')
box[5]=mark;
else if (choice==6 && box[6]=='6')
box[6]=mark;
else if (choice==7 && box[7]=='7')
box[7]=mark;
else if (choice==8 && box[8]=='8')
box[8]=mark;
else if (choice==9 && box[9]=='9')
box[9]=mark;
else
{
printf("Invalid move");
}
}
int check_win()
{
if(box[1]==box[2] && box[2]==box[3])
return 1;
else if(box[4]==box[5] && box[5]==box[6])
return 1; // horizontal match
else if (box[7]==box[8] && box[8]==box[9])
return 1;
else if (box[1]==box[4] && box[4]==box[7])
return 1;
else if(box[2]==box[5] && box[5]==box[8]) // vertical match
return 1;
else if(box[3]==box[6] && box[6]==box[9])
return 1;
else if(box[1]==box[5] && box[5]==box[9])
return 1;
else if(box[3]==box[5] && box[5]==box[7]) //diagonal match
return 1;
else if(box[1]!= '1' && box[2]!= '2' && box[3]!= '3' && box[4]!= '4'&& box[5]!= '5' && box[6]!= '6'&& box[7]!= '7' && box[8]!= '8' && box[9]!='9') //no match
return 0;
else
return -1;
}
>