1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 require 'logger' class Hanoi def initialize(size=3, options={}) @logger = Logger.new(STDOUT) @options = options @bars = { :a => [], :b => [], :c => [] } @size = size.to_i @step = 0 if @size < 2 @bars[:a] += [1] else @bars[:a] += (1..@size).to_a.re