Question

A complete binary tree of level 5 has how many nodes?

Answer 1

if it is a full binary tree with 5 levels i.e., level 0,1,2,3,4.then the number of leaf nodes are pow(2,4)=16.but,from the given data it should be equal to 25.. that means some of these 16 leaves have children in the next level i.e each node in level l-1 has 0 or 2-children.

Answer 2

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$\mathfrak{\blue{Q.}}$

$\mathfrak{\blue{Ans.}}$  if it is a full binary tree with 5 levels i.e., level 0,1,2,3,4.then the number of leaf nodes are pow(2,4)=16.but,from the given data it should be equal to 25.. that means some of these 16 leaves have children in the next level i.e each node in level l-1 has 0 or 2-children.

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