The solution to the HP Air problem described in Programming Problem 11 of Chapter 6uses an adjacency list to represent the flight map. Repeat the solution to this problem, but define the adjacency list as a list of lists instead of an array of linked chains. Use lists that have a link-based implementation.
Programming Problem 11:
The popular social network Facebook was founded by Mark Zuckerberg and his classmates at Harvard University in 2004. At the time, he was a sophomore studying computer science. Design and implement an application that maintains the data for a simple social network. Each person in the network should have a profile that contains the person's name, optional image, current status, and a list of friends. Your application should allow a user to join the network, leave the network, create a profile, modify the profile, search for other profiles, and add friends.