Question

Using C language

Problem!! <3 x 3 tic tac toe>

2 players are doing tic tac toe alternatively. Anyone could win when they first make a bingo for any line(horizontal, vertical, diagonal)

[Constraints]

1. Use 2dimensional Array(3 X 3)

2. Each elements are 1 or 2 so that can show their player1, player2's mark.

3. Inputs are 1 through 9 as you can see

1	2	3
4	5	6
7	8	9

4. No inputs are duplicated

5. if no one wins after the tictac toe, print out "draw"

Example of screen of output

Answer 1

#include <stdio.h>
int main() {
int winner = 0, count = 0;
int data[9], index, sign, player, flag, i, k, j;

for (i = 0; i < 9; i++)
data[i] = ' ';

while (count < 9) {
flag = 0;
printf("\n\n");
printf("\t\t\t %c | %c | %c \n", data[0], data[1], data[2]);
printf("\t\t\t----+----+----\n");
printf("\t\t\t %c | %c | %c \n", data[3], data[4], data[5]);
printf("\t\t\t----+----+---\n");
printf("\t\t\t %c | %c | %c \n", data[6], data[7], data[8]);
if (count % 2 == 0) {
sign = '1';
player = 1;
} else {
sign = '2';
player = 2;
}
printf("Move for player%d(1-9):", player);
scanf("%d", &index);
if (index < 1 || index > 9) {
printf("Allowed index is 1 to 9!!\n");
continue;
}
if (data[index - 1] == '1' || data[index - 1] == '2') {
printf("Position Already occupied!!\n");
continue;
}
data[index - 1] = sign;
count++;

for (i = 0; i < 9; i++) {
if (i % 3 == 0)
flag = 0;

if (data[i] == sign)
flag++;

if (flag == 3) {
winner = 1;
goto win;
}
}

flag = 0;
for (i = 0; i < 3; i++) {
for (k = i; k <= i + 6; k = k + 3) {
if (data[k] == sign)
flag++;
}
if (flag == 3) {
winner = 1;
goto win;
}
flag = 0;
}
if ((data[0] == sign && data[4] == sign && data[8] == sign) ||
(data[2] == sign && data[4] == sign && data[6] == sign)) {
winner = 1;
goto win;
}
}
win:
printf("\n\n");
printf("\t\t\t %c | %c | %c \n", data[0], data[1], data[2]);
printf("\t\t\t----+----+----\n");
printf("\t\t\t %c | %c | %c \n", data[3], data[4], data[5]);
printf("\t\t\t----+----+---\n");
printf("\t\t\t %c | %c | %c \n\n", data[6], data[7], data[8]);
if (winner) {
printf("Player %d is the winner. Congrats!!\n", player);
} else {
printf("draw");
}
return 0;
}