/in/foo.cc: In function 'int lcainit(int)':
/in/foo.cc:49:1: warning: no return statement in function returning non-void [-Wreturn-type]
   49 | }
      | ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:126:19: warning: unused variable 'tl' [-Wunused-variable]
  126 |   int tfrom, tto, tl;
      |                   ^~