/in/foo.cc: In function 'int main()':
/in/foo.cc:16:18: warning: overflow in conversion from 'long int' to 'int' changes value from '69540876599103' to '1061109567' [-Woverflow]
   16 |         memset(f,0x3f3f3f3f3f3f,sizeof(f));
      |                  ^~~~~~~~~~~~~~