/in/foo.c: In function 'main':
/in/foo.c:23:16: error: 'max' undeclared (first use in this function)
       if(count>max)
                ^~~
/in/foo.c:23:16: note: each undeclared identifier is reported only once for each function it appears in
/in/foo.c:26:8: error: 'result' undeclared (first use in this function)
        result=j;
        ^~~~~~
/in/foo.c:8:9: warning: unused variable 'j' [-Wunused-variable]
     int j=0;
         ^