foo.cc: In function 'int main()':
foo.cc:67:12: warning: format '%s' expects argument of type 'char*', but argument 3 has type 'char (*)[50]' [-Wformat=]
   67 |  scanf("%d%s%s%s",&n,&_a,&_b,&_c);
      |           ~^         ~~~
      |            |         |
      |            char*     char (*)[50]
foo.cc:67:14: warning: format '%s' expects argument of type 'char*', but argument 4 has type 'char (*)[50]' [-Wformat=]
   67 |  scanf("%d%s%s%s",&n,&_a,&_b,&_c);
      |             ~^           ~~~
      |              |           |
      |              char*       char (*)[50]
foo.cc:67:16: warning: format '%s' expects argument of type 'char*', but argument 5 has type 'char (*)[50]' [-Wformat=]
   67 |  scanf("%d%s%s%s",&n,&_a,&_b,&_c);
      |               ~^             ~~~
      |                |             |
      |                char*         char (*)[50]
foo.cc:67:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   67 |  scanf("%d%s%s%s",&n,&_a,&_b,&_c);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

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