Define heap, Data Structure & Algorithms

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HEAP 

A heap is described to be a binary tree with a key in every node, such that 

1-All the leaves of the tree are on 2 adjacent levels.

2- All leaves on the lowest level happen to the left & all levels except possibly the lowest are filled.

3- The information the root is at least as large as the keys in its children (if any) & the left & right sub trees  (if they exist) are again heap.

 


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