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• Heap_(data_structure) abstract "In computer science, a heap is a specialized tree-based data structure that satisfies the heap property: If A is a parent node of B then the key of node A is ordered with respect to the key of node B with the same ordering applying across the heap. Either the keys of parent nodes are always greater than or equal to those of the children and the highest key is in the root node (this kind of heap is called max heap) or the keys of parent nodes are less than or equal to those of the children and the lowest key is in the root node (min heap). Heaps are crucial in several efficient graph algorithms such as Dijkstra's algorithm, and in the sorting algorithm heapsort. In other words, a binary heap is a complete binary tree which satisfies the heap ordering property. The ordering can be one of two types:1. the min-heap property: the value of each node is greater than or equal to the value of its parent, with the minimum-value element at the root.2. the max-heap property: the value of each node is less than or equal to the value of its parent, with the maximum-value element at the root.Throughout this article the word heap will always refer to a min-heap. In a heap the highest (or lowest) priority element is always stored at the root, hence the name heap. A heap is not a sorted structure and can be regarded as partially ordered. As you see from the Heap-diagram, there is no particular relationship among nodes on any given level, even among the siblings. Since a heap is a complete binary tree, it has a smallest possible height - a heap with N nodes always has O(log N) height. A heap is a useful data structure when you need to remove the object with the highest (or lowest) priority.Note that, as shown in the graphic, there is no implied ordering between siblings or cousins and no implied sequence for an in-order traversal (as there would be in, e.g., a binary search tree). The heap relation mentioned above applies only between nodes and their immediate parents. The maximum number of children each node can have depends on the type of heap, but in many types it is at most two, which is known as a "binary heap".The heap is one maximally efficient implementation of an abstract data type called a priority queue, and in fact priority queues are often referred to as "heaps", regardless of how they may be implemented. Note that despite the similarity of the name "heap" to "stack" and "queue", the latter two are abstract data types, while a heap is a specific data structure, and "priority queue" is the proper term for the abstract data type.[citation needed]A heap data structure should not be confused with the heap which is a common name for the pool of memory from which dynamically allocated memory is allocated. The term was originally used only for the data structure.".
• Heap_(data_structure) thumbnail Max-Heap.svg?width=300.
• Heap_(data_structure) wikiPageExternalLink PriorityQueue.html.
• Heap_(data_structure) wikiPageExternalLink heapq.html.
• Heap_(data_structure) wikiPageExternalLink heap.
• Heap_(data_structure) wikiPageExternalLink Heap.html.
• Heap_(data_structure) wikiPageExternalLink reference.html.
• Heap_(data_structure) wikiPageExternalLink Heap.
• Heap_(data_structure) wikiPageID "13996".
• Heap_(data_structure) wikiPageRevisionID "605710526".
• Heap_(data_structure) hasPhotoCollection Heap_(data_structure).
• Heap_(data_structure) subject Category:Heaps_(data_structures).
• Heap_(data_structure) comment "In computer science, a heap is a specialized tree-based data structure that satisfies the heap property: If A is a parent node of B then the key of node A is ordered with respect to the key of node B with the same ordering applying across the heap.".
• Heap_(data_structure) label "Heap (Datenstruktur)".
• Heap_(data_structure) label "Heap (data structure)".
• Heap_(data_structure) label "Heap binario".
• Heap_(data_structure) label "Heap".
• Heap_(data_structure) label "Heap".
• Heap_(data_structure) label "Kopiec (informatyka)".
• Heap_(data_structure) label "Montículo (informática)".
• Heap_(data_structure) label "Tas (informatique)".
• Heap_(data_structure) label "Куча (структура данных)".
• Heap_(data_structure) label "ヒープ".
• Heap_(data_structure) label "堆 (数据结构)".
• Heap_(data_structure) sameAs Halda_(datová_struktura).
• Heap_(data_structure) sameAs Heap_(Datenstruktur).
• Heap_(data_structure) sameAs Montículo_(informática).
• Heap_(data_structure) sameAs Tas_(informatique).
• Heap_(data_structure) sameAs Heap_binario.
• Heap_(data_structure) sameAs ヒープ.
• Heap_(data_structure) sameAs 힙_(자료_구조).
• Heap_(data_structure) sameAs Heap.
• Heap_(data_structure) sameAs Kopiec_(informatyka).
• Heap_(data_structure) sameAs Heap.
• Heap_(data_structure) sameAs m.03mwv.
• Heap_(data_structure) sameAs Q274089.
• Heap_(data_structure) sameAs Q274089.
• Heap_(data_structure) wasDerivedFrom Heap_(data_structure)?oldid=605710526.
• Heap_(data_structure) depiction Max-Heap.svg.
• Heap_(data_structure) isPrimaryTopicOf Heap_(data_structure).