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Question

The number of nodes in a full binary tree of depth 4 is

A
15
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B
16
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C
14
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D
13
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Solution

The correct option is A 15

The number of nodes in a full binary tree of depth 4 is 15.

The maximum possible number of null links in a complete binary tree of n nodes is (n+1), where only 1 node exists in bottom-most level to the far left.

A full binary tree is a tree in which every node other than the leaves has two children. A complete binary tree is a binary tree in which every level, except possibly the last, is completely filled, and all nodes are as far left as possible.


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