/in/foo.c: In function 'main':
/in/foo.c:7:3: error: expected ';' before 'scanf'
   scanf("%d",&a)
   ^~~~~
/in/foo.c:5:13: warning: unused variable 'min' [-Wunused-variable]
     int a,b,min;
             ^~~
/in/foo.c:5:11: warning: unused variable 'b' [-Wunused-variable]
     int a,b,min;
           ^
/in/foo.c:5:9: warning: unused variable 'a' [-Wunused-variable]
     int a,b,min;
         ^