/in/foo.cc: In function 'int main()':
/in/foo.cc:15:19: warning: format '%lld' expects argument of type 'long long int*', but argument 2 has type 'int*' [-Wformat=]
   15 |         scanf("%lld", &x);
      |                ~~~^   ~~
      |                   |   |
      |                   |   int*
      |                   long long int*
      |                %d