--------------------------------------
Programmer: Ben Keller
CS 2604, Recommender Project
--------------------------------------
Display:
Empty tree
--------------------------------------
Input: Bill likes "Braveheart"
--------------------------------------
Query: does Bill like "Braveheart"?
yes
--------------------------------------
Query: does Ben like "Braveheart"?
no
--------------------------------------
Display:
   0  -1
   1   0
--------------------------------------
Input: Ben likes "Braveheart"
--------------------------------------
Input: Ben likes "The Patriot"
--------------------------------------
Input: Lesley likes "The Patriot"
--------------------------------------
Input: Lesley likes "When Harry met Sally"
--------------------------------------
Input: Jake likes "Rescue Rangers"
--------------------------------------
Input: Nate likes "Rescue Rangers"
--------------------------------------
Input: Nate likes "Purple Fury: Barney's Revenge"
--------------------------------------
Display:
   0   2
   1   0
   2   4
   3   2
   4  -1
   5   4
   6   8
   7   6
   8  -1
   9   8
--------------------------------------
Query: does Bill like "When Harry met Sally"?
yes
--------------------------------------
Query: does Bill like "Rescue Rangers"?
no
--------------------------------------
Query: does Ben like "Purple Fury: Barney's Revenge"?
no
--------------------------------------
Query: does Lesley like "Braveheart"?
yes
--------------------------------------
Query: does Nate like "Braveheart"?
no
--------------------------------------
Display:
   0   2
   1   0
   2   4
   3   2
   4  -1
   5   4
   6   8
   7   6
   8  -1
   9   8
--------------------------------------