Practice assignment

This bit of practice is not an assignment worth points, but it will help you with Project B.

The the code found in the file "practice1.cc" found on the website. Do the following:

Figure out what the member function "insert" is doing. How does it work? Why does adding a value to 'a' work?
What role is "size" playing?
What would the following code do:
```
        char a;
        a='a'-1;
        cout << a << endl;
```
(hint: run the code and look at the ASCII table in the back of the book)
Now write a member function for Alpha which prints the location of the largest character (greatest ASCII value) in the array. Be sure to only consider those elements which are "in" the array. (Hint, this is a pretty short loop. Break ties however you wish).