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Get first node in a binary tree given a particular level?

+1 vote
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Suppose you are given a tree and asked to find out the first node at nth level. How can it be done? C code would be helpful?

posted Feb 19, 2016 by anonymous

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1 Answer

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Algorithm to find first node of nth level of Tree
Step 1. Traverse the given tree using level order traversal method
Step 1.a check n level of given tree.

if(nth level is find)
     print the first node of given tree.
else
    print: the nth level is not present in the list.

2 Exit.

answer Feb 19, 2016 by Rajan Paswan
But how to find first node that was the query...Do you like to give the code also.

PS: Completeness of answer not only helps others but helps you also as it attract recruiters on your profile.
commented Feb 20, 2016 by Salil Agrawal
yes i will send code as well as very soon....
commented Feb 20, 2016 by Rajan Paswan
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