quick and dirty answer to facebook seattle puzzle

facebook_seatlle_puzzle.rb

require 'rubygems'
require 'httparty'
require 'set'


class FBProblem
  include HTTParty
  format :json
  base_uri "https://graph.facebook.com"
  
  
  @@access_token = "2227470867|2.o3hpFoWopar3qd1jeO_QxA__.3600.1281769200-604188166|S_kd755ZvAIFy9E4ocds-8IvnxA." 
  
  class << self
    
    def friends
      get("/me/friends",:query => {:access_token => @@access_token})
    end
    
    def friend_likes_and_interest
      friend_like_array = Array.new
      FBProblem.friends["data"].each{ |friend|
        flike = Set.new
        finterest = Set.new
        
        get("/#{friend["id"]}/likes",:query => {:access_token => @@access_token})["data"].each{|item|
          flike.add(item["id"])
        }
        
        get("/#{friend["id"]}/interests",:query => {:access_token => @@access_token})["data"].each{|item|
          finterest.add(item["id"])
        }

        f_data = (flike + finterest)
        puts "#{friend["name"]} #{f_data.count}"
        friend_like_array << f_data             
      }
      return friend_like_array
    end
    
    def my_likes_and_interest
      likes = Set.new
      interest = Set.new
      get("/me/likes",:query => {:access_token => @@access_token})["data"].each{|item|
        likes.add(item["id"])
      }
      get("/me/interests",:query => {:access_token => @@access_token})["data"].each{|item|
        interest.add(item["id"])
      }
    
      return likes+interest
    end
  end
end


my_stuff = FBProblem.my_likes_and_interest
friend_array =  FBProblem.friend_likes_and_interest
 
  current_score = 0
  friend_array.each{ |current_friend|
     
    temp_score = current_friend.intersection(my_stuff).count
    
    if temp_score > current_score
      current_score = temp_score  
    end
  } 
puts "the score of similarity is #{current_score}"