Mã chấm: 14422

Main.c: In function ‘main’:
Main.c:25:2: error: expected declaration or statement at end of input
  return 0;
  ^~~~~~
Main.c:6:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ^~~~~~~~~~~~~~~
Main.c:9:32: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   for (int j = 0; j <= 1; j++) scanf("%d", &a[i][j]);
                                ^~~~~~~~~~~~~~~~~~~~~