C++ enum syntax

Question

After I declare

enum color {red, blue, green};

is there any difference between

color a=blue;

and

enum color a=blue;

Answer 1

enum MyEnumType { ALPHA, BETA, GAMMA };

enum MyEnumType x;  /* legal in both C and C++ */
MyEnumType y;       // legal only in C++

enum { HOMER, MARGE, BART, LISA, MAGGIE };