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if there are n nodes in a binary tree, how many null
pointers are there?

Answers were Sorted based on User's Feedback



if there are n nodes in a binary tree, how many null pointers are there? ..

Answer / anand prakash

If there are n nodes in a Binary Tree then number of null
pointers = n+1

Is This Answer Correct ?    58 Yes 5 No

if there are n nodes in a binary tree, how many null pointers are there? ..

Answer / fakkad

maximum(for complete binary tree) n+1

so total null pointers are <=n+1

It is equivalent to total number of leaf nodes.

Is This Answer Correct ?    8 Yes 3 No

if there are n nodes in a binary tree, how many null pointers are there? ..

Answer / sreenatha

let the binary tree be not symmetric , then it has n-1 edges
excluding the edges from deficient nodes(nodes that have
atmost one child) to NULL.
Suppose , the binary tree was perfectly symmetric (i.e,
every node including the root has exactly two children).
Then , the total no.of edges including the edges from leaf
nodes to NULL would be 2 * N .
So , required ans = 2*N - N-1 = N+1

Is This Answer Correct ?    8 Yes 3 No

if there are n nodes in a binary tree, how many null pointers are there? ..

Answer / banti sharma

Anand Prakash is Absulutely right

Is This Answer Correct ?    6 Yes 5 No

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