foo.c: In function 'main':
foo.c:12:10: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[1000]' [-Wformat=]
   12 |  scanf("%s",&s1);
      |         ~^  ~~~
      |          |  |
      |          |  char (*)[1000]
      |          char *
foo.c:13:10: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[1000]' [-Wformat=]
   13 |  scanf("%s",&s2);
      |         ~^  ~~~
      |          |  |
      |          |  char (*)[1000]
      |          char *
foo.c:12:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   12 |  scanf("%s",&s1);
      |  ^~~~~~~~~~~~~~~
foo.c:13:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   13 |  scanf("%s",&s2);
      |  ^~~~~~~~~~~~~~~

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