/in/foo.c: In function 'main':
/in/foo.c:22:24: warning: missing terminating " character
   22 |                 printf("方程无解”）；
      |                        ^
/in/foo.c:22:24: error: missing terminating " character
   22 |                 printf("方程无解”）；
      |                        ^~~~~~~~~~~~~~
/in/foo.c:23:9: error: expected expression before '}' token
   23 |         }
      |         ^
/in/foo.c:22:24: error: expected ';' before '}' token
   22 |                 printf("方程无解”）；
      |                        ^
      |                        ;
   23 |         }
      |         ~