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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int a[3][3] = {0}, b[9][2];
  5. 	int i, j, k;
  6. 	int product;
  7. 	int m, n;
  8. 	scanf("%d", &k);
  9. 	for (i = 0; i < k; i ++)
  10. 		for (j = 0; j < 2; j ++)
  11. 			scanf("%d", &(b[i][j]));
  12. 	for (i = 0; i < k; i += 2)
  13. 		a[b[i][0]][b[i][1]] = 1;
  14. 	for (i = 1; i < k; i += 2)
  15. 		a[b[i][0]][b[i][1]] = 2;
  16. 	for (i = 0; i < 3; i ++){
  17. 		for (j = 0, product = 1; j < 3; j ++)
  18. 			product *= a[i][j];
  19. 		if (product == 1 || product == 8)
  20. 			break;
  21. 		for (j = 0, product = 1; j < 3; j ++)
  22. 			product *= a[j][i];
  23. 		if (product == 1 || product == 8)
  24. 			break;
  25. 	}
  26. 	for (i = 0, m = 1; i < 3; i ++)
  27. 		m *= a[i][i];
  28. 	for (i = 0, n = 1; i < 3; i ++)
  29. 		n *= a[i][2 - i];
  30. 	if ((product == 1)||(m ==1)||(n == 1))
  31. 		printf("%d", 1);
  32. 	else if ((product == 8)||(m == 8)||(n == 8))
  33. 		printf("%d", 2);	
  34. 	else
  35. 		printf("%d", 0);
  36. 	return 0;
  37. }
Success #stdin #stdout 0s 4504KB
comments (?)
stdin
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9
1 1
0 1
1 2
1 0
0 0
2 2
2 0
0 2
2 1
stdout
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Standard output is empty
https://ideone.com/4QDNjv
language:
C (gcc 8.3)
created:
5 years ago
visibility:
public

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