- A specialized tree-based data structure which is essentially an almost complete binary tree that satisfies the heap property: In a max heap, for any given node
*C*, if*P*is a parent node of*C*, then the key (the value) of*P*is greater than or equal to the key of*C*. In a min heap, the key of*P*is less than or equal to the key of*C*. The node at the “top” of the heap (with no parents) is called the root node. ← Wikipedia

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