A Person has a name (just a first name for simplicity) and friends. Store the names of the friends in a string, separated by spaces. Provide a constructor that constructs a person with a given name and no friends. Provide member functions void befriend(Person p) void unfriend(Person p) string get_friend_names() P9.3Add a member function int get_friend_count() to the Person class of Exercise P9.2. P9.4Reimplement the Person class from Exercise P9.2 so that the collection of a persons friends is stored in a vector.

I need to use vectors in the code. I need help with code " i tried using push_back for befriend function and erase for unfriend function.