/in/foo.c: In function 'main':
/in/foo.c:18:33: error: 'min' undeclared (first use in this function); did you mean 'main'?
   18 |                                 min=j;
      |                                 ^~~
      |                                 main
/in/foo.c:18:33: note: each undeclared identifier is reported only once for each function it appears in