/in/foo.cc: In function 'int main()':
/in/foo.cc:29:45: warning: unknown conversion type character '.' in format [-Wformat=]
     scanf("%.2f %.2f %.2f %.2f ",&a,&b,&c,&d);
                                             ^
/in/foo.cc:29:45: warning: unknown conversion type character '.' in format [-Wformat=]
/in/foo.cc:29:45: warning: unknown conversion type character '.' in format [-Wformat=]
/in/foo.cc:29:45: warning: unknown conversion type character '.' in format [-Wformat=]
/in/foo.cc:29:45: warning: too many arguments for format [-Wformat-extra-args]