mysolution-refactored.rb

class Node
  attr_accessor :value, :next_node
 
  def initialize(value, next_node)
    @value = value
    @next_node = next_node
  end

  def print_values
    print "#{self.value}-->"
    if self.next_node.nil?
      print "nil\n"
      return
    else
      self.next_node.print_values
    end
  end
end
 
 
 
def reverse_list(list)
  rev = nil
  while list
    rev = Node.new(list.value, rev)
    list = list.next_node
  end
  rev
end
 
l1 = Node.new(1, nil)
l2 = Node.new(2, l1)
l3 = Node.new(3, l2)
l4 = Node.new(4, l3)
 
l4.print_values

rev = reverse_list(l4)
puts "-----"
rev.print_values