One problem with the Vector class is the time it takes to add an element: O(N), where N is the number of elements already in the Vector.
So here’s another scheme for maintaining a sequence that will be quicker to update.
What lists are and why have them
All around the city a group of superheroes is waiting. They have a scheme for notifying each other if their powers are needed: each has the phone number of another, who has the number of another, until the last one on the list, who has none. (See Figure 22-1.)
Figure 22-1
Our city, with three superheroes in a linked list. Amazing Girl is first, at 555-0169; ...
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