/in/foo.c: In function 'main':
/in/foo.c:5:11: warning: missing terminating " character
    5 |     scanf("%1f,&f);
      |           ^
/in/foo.c:5:11: error: missing terminating " character
    5 |     scanf("%1f,&f);
      |           ^~~~~~~~~
/in/foo.c:6:9: error: expected expression before 'double'
    6 |         double c;
      |         ^~~~~~
/in/foo.c:9:18: error: expected ';' before '}' token
    9 |         return 0;
      |                  ^
      |                  ;
   10 |  }
      |  ~                
/in/foo.c:4:16: warning: unused variable 'f' [-Wunused-variable]
    4 |         double f;
      |                ^