1. Write an enumeration DIGIT whose enumerators are the names of the integers 0,1,2,3,4,5,6,7,8,9. 2. What three things must the compiler do when it

1. Write an enumeration DIGIT whose enumerators are the names of the integers 0,1,2,3,4,5,6,7,8,9.2. What three things must the compiler do when it encounters a variable declaration? 3. write c++ statements to allow the user to enter n, the number of values to be processed; then allocate an anonymous array of n double values, storing its address in doublPtr."