public List<Person> GetPeopleInNetwork(Person p)
{
List<Person> people = new List<Person>();
ListPeopleInNetwork(p, people);
return people;
}
public List<Person> GetMutualFriends(Person p)
{
List<Person> mutual = new List<Person>();
foreach (Person friend in p.Friends)
{
if (friend.Friends.Contains(p))
mutual.Add(friend);
}
return mutual;
}
static void Main()
{
// Create a client
SocialNetworkClient sn = new SocialNetworkClient();
// Create my social network
Person helena = new Person() { Name = "Helena", Age = 35, Location = "Chicago" };
Person andrew = new Person(){Name = "Andrew", Age=25, Location="Seattle"};
Person paul = new Person() { Name = "Paul", Age = 28, Location = "Bostan" };
Person sarah = new Person() { Name = "Sarah", Age = 27, Location = "Seattle" };
Person richard = new Person() { Name = "Richard", Age = 40, Location = "New York" };
helena.Friends = new Person[] {andrew, sarah, richard, paul};
andrew.Friends = new Person[] { helena, richard, paul };
paul.Friends = new Person[] { sarah, richard };
sarah.Friends = new Person[] { andrew};
richard.Friends = new Person[] { helena };
// Call the GetPeopleInNetwork to find people in Andrew's network
Person[] network = sn.GetPeopleInNetwork(andrew);
Console.WriteLine("Andrew's Network: ");
foreach (Person p in network)
Console.WriteLine(" "+p.Name);
// Call GetMutualFriends to find Helena's mutual friends
Person[] mutual = sn.GetMutualFriends(helena);
Console.WriteLine("Helena's Mutual Friends: ");
foreach (Person p in mutual)
Console.WriteLine(" " + p.Name);
// Call GetcommonFriends to find common friends of Helena and Andrew
Person[] common = sn.GetCommonFriends(new Person[] {helena, andrew});
Console.WriteLine("Helena and Andew's Common Friends: ");
foreach (Person p in common)
Console.WriteLine(" " + p.Name);
Console.ReadLine();
}
void ListPeopleInNetwork(Person p, List<Person> lst)
{
if (!lst.Contains(p))
{
lst.Add(p);
foreach (Person friend in p.Friends)
ListPeopleInNetwork(friend, lst);
}
}
