/in/hotel-ll.c: In function 'LoadInfo_Dorm':
/in/hotel-ll.c:83:5: error: variable 'read' set but not used [-Werror=unused-but-set-variable]
 int read;
     ^~~~
/in/hotel-ll.c: In function 'LoadInfo_Family':
/in/hotel-ll.c:157:6: error: variable 'read' set but not used [-Werror=unused-but-set-variable]
  int read;
      ^~~~
/in/hotel-ll.c: In function 'LoadInfo_Couple':
/in/hotel-ll.c:222:6: error: variable 'read' set but not used [-Werror=unused-but-set-variable]
  int read;
      ^~~~
/in/hotel-ll.c: In function 'LoadInfo_Single':
/in/hotel-ll.c:281:6: error: variable 'read' set but not used [-Werror=unused-but-set-variable]
  int read;
      ^~~~
cc1: all warnings being treated as errors