/in/ex1.c: In function 'main':
/in/ex1.c:14:8: error: unused variable 'argc' [-Werror=unused-variable]
    int argc = 0;
        ^~~~
/in/ex1.c:13:9: error: unused variable 'arr' [-Werror=unused-variable]
     int arr[500];
         ^~~
/in/ex1.c:12:17: error: unused variable 'a' [-Werror=unused-variable]
     struct name a[500];
                 ^
/in/ex1.c:11:11: error: unused variable 'get' [-Werror=unused-variable]
     char* get[10000];
           ^~~
cc1: all warnings being treated as errors