In the mid-1980s, Microsoft developed the ________ operating system based on a graphical user interface with buttons, textboxes, menus and other graphical elements.

Show two equivalent ways to set the count member in the ListNode variable to which head points.

1. Given the structure definition: ``` const int STRING_SIZE = 20; struct ListNode { char item[STRING_SIZE]; int count; ListNode * link; }; ListNode *head = new ListNode; ```

What will the output look like?

``` #include using namespace std; int main() { double x; cout<<"\nNumber of bytes is "<