foo.cc: In function ‘int main()’:
foo.cc:13:25: error: expected ‘)’ before user-defined string literal
   13 |         printf("%.5lf",b" "c)
      |               ~         ^~~~
      |                         )
foo.cc:13:21: warning: format ‘%lf’ expects argument of type ‘double’, but argument 2 has type ‘int’ [-Wformat=]
   13 |         printf("%.5lf",b" "c)
      |                 ~~~~^  ~
      |                     |  |
      |                     |  int
      |                     double
      |                 %.5d
foo.cc:13:30: error: expected ‘;’ before ‘return’
   13 |         printf("%.5lf",b" "c)
      |                              ^
      |                              ;
   14 |         return 0;
      |         ~~~~~~