Cacher is the code snippet organizer for pro developers

###
#        Node List
###

class Node
        attr_accessor :val, :next
        def initialize(val,next=nil)
                @val=val
                @next=next
        end
end

class List 
        attr_accessor :items

        def initialize
                @items = nil
        end

        def insertFirst(item)
                @items = Node.new(item,@items)
        end

       
       def head
          @items.val
       end

       def tail
         @items.next
       end

end