/in/foo.c: In function 'main':
/in/foo.c:24:11: warning: format '%f' expects argument of type 'float *', but argument 2 has type 'double *' [-Wformat=]
  scanf("%1f",&x);
           ^
/in/foo.c: At top level:
/in/foo.c:29:1: error: expected identifier or '(' before '}' token
 }
 ^