/in/foo.c: In function 'main':
/in/foo.c:8:17: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'char *' [-Wformat=]
    8 |         scanf("%d", &a[i]);
      |                ~^   ~~~~~
      |                 |   |
      |                 |   char *
      |                 int *
      |                %hhd