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只要有BEYOND,就不会有世界末日!
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【有没有高手会这道编程题啊！！！急啊，在线等！！！】 随便用什么语言编出来都行，马上就要用了，感激不尽啦！！！A deque is a data structure consisting of a list of items,on which the following operations are possible: Push(X,D):Insert item X on the front end of the deque D. Pop(D):Remove the front item from deque D and return it. Inject(X,D):Insert item X on the rear end of deque D. Eject(D):Remove the rear item from deque D and return it.Write routines to support the deque that take O(1) time per operation.
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