class ArrayQueue
def initialize
@list = []
end
def enqueue(value)
end
def dequeue
end
def front
end
def isEmpty
end
end
class LLQueue
def initialize
end
def enqueue(value)
end
def dequeue
end
def front
end
def isEmpty
end
end
# Helper classes
class Node
attr_accessor :next
attr_reader :value
def initialize(value)
@value = value
@next = nil
end
end
class LinkedList
def initialize
@head = nil
@tail = nil
end
end