‪#‎Implement‬ your own sorted list in ‪#‎ruby‬, and how to use predefined SortedSet class.

sorted_list.rb

require 'set'
require 'forwardable'

set = SortedSet.new([8,6,4,2,0,5,9,66,8])

p set # => #<SortedSet: {0, 2, 4, 5, 6, 8, 9, 66}>
# How to implement the same 'SortedSet' functionality on your own
class SortedList
  include Enumerable
  extend Forwardable
  def initialize(data=[])
    @data = data.sort!
  end

  def_delegators :@data, :each, :<<, :push
end
l = SortedList.new([8,6,4,2,0,5,9,66,8])
l << 6 << 7 << 9 << 0 << 5 << 3 << 5 << 66 << 33 << 1
p l 
# Go ahead and give it a spin.