/in/foo.c: In function 'main':
/in/foo.c:8:18: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[100]' [-Wformat=]
    8 |         scanf ("%s",&s);
      |                 ~^  ~~
      |                  |  |
      |                  |  char (*)[100]
      |                  char *