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Apr 24th, 2018
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  1. prefs = Hash.new
  2. @users.each do |user|
  3. prefs[user.id] = Hash.new
  4. @items.each do |item|
  5. prefs[user.id][item.id] = get_score(user.id, item.id)
  6. end
  7. end
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