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2. Queue (abstract data type) - Wikipedia

   en.wikipedia.org/wiki/Queue_(abstract_data_type)

   A bounded queue is a queue limited to a fixed number of items. [1] There are several efficient implementations of FIFO queues. An efficient implementation is one that can perform the operations—en-queuing and de-queuing—in O(1) time. Linked list. A doubly linked list has O(1) insertion and deletion at both ends, so it is a natural choice ...

3. Abstract data type - Wikipedia

   en.wikipedia.org/wiki/Abstract_data_type

   For example, one may specify that each operation takes the same time and each value takes the same space regardless of the state of the ADT, or that there is a "size" of the ADT and the operations are linear, quadratic, etc. in the size of the ADT.

4. Double-ended queue - Wikipedia

   en.wikipedia.org/wiki/Double-ended_queue

   A double-ended queue can be used to store the browsing history: new websites are added to the end of the queue, while the oldest entries will be deleted when the history is too large. When a user asks to clear the browsing history for the past hour, the most recently added entries are removed.

5. List of data structures - Wikipedia

   en.wikipedia.org/wiki/List_of_data_structures

   Union, a datum which may be one of a set of types; ... Queue (example Priority queue) Double-ended queue; Graph (example Tree, Heap) Some properties of abstract data ...

6. Priority queue - Wikipedia

   en.wikipedia.org/wiki/Priority_queue

   A priority queue is often considered to be a "container data structure". The Standard Template Library (STL), and the C++ 1998 standard, specifies std::priority_queue as one of the STL container adaptor class templates. However, it does not specify how two elements with same priority should be served, and indeed, common implementations will not ...

7. Collection (abstract data type) - Wikipedia

   en.wikipedia.org/wiki/Collection_(abstract_data...

   Some collections maintain a linear ordering of items – with access to one or both ends. The data structure implementing such a collection need not be linear. For example, a priority queue is often implemented as a heap, which is a kind of tree. Notable linear collections include: list; stack; queue; priority queue; double-ended queue

8. Comparison of programming languages (algebraic data type)

   en.wikipedia.org/wiki/Comparison_of_programming...

   This article compares the syntax for defining and instantiating an algebraic data type (ADT), sometimes also referred to as a tagged union, in various programming languages. Examples of algebraic data types

9. Peek (data type operation) - Wikipedia

   en.wikipedia.org/wiki/Peek_(data_type_operation)

   For queue, because enqueuing and dequeuing occur at opposite ends, peek cannot be implemented in terms of basic operations, and thus is often implemented separately. One case in which peek is not trivial is in an ordered list type (i.e., elements accessible in order) implemented by a self-balancing binary search tree .