Non-recursive algorithm to traverse a tree in preorder, Data Structure & Algorithms

Assignment Help:

Write the non-recursive algorithm to traverse a tree in preorder.   

The Non- Recursive algorithm for preorder traversal is as follows:

Initially  push NULL onto stack and then set PTR=Root. Repeat the steps until PTR= NULL.

1. Preorder down the left most path routed at PTR.

2. Processing every node N on the path and pushing every right child if any onto the stack.[The traversing stops when (PTR)=NULL]

3. Backtracking: pop and assign to PTR the top element on stack. If PTR not equal to NULL then return to step 1 or else exit.  

 


Related Discussions:- Non-recursive algorithm to traverse a tree in preorder

Linked list implementation of any circular queue, Link list representation ...

Link list representation of a circular queue is more efficient as it employs space more competently, of course with the added cost of storing the pointers. Program 7 gives the link

Algorithm for inorder traversals, Step-1: For the current node, verify whet...

Step-1: For the current node, verify whether it contain a left child. If it has, then go to step-2 or else go to step-3 Step-2: Repeat step-1 for left child Step-3: Visit (th

Asymptotic analysis, Asymptotic Analysis Asymptotic analysis is dependi...

Asymptotic Analysis Asymptotic analysis is depending on the idea that as the problem size grows, the complexity can be defined as a simple proportionality to some known functio

Indexed sequential file organisation, When there is requirement to access r...

When there is requirement to access records sequentially by some key value and also to access records directly by the similar key value, the collection of records may be organized

..#title, whate is meant by the term heuristic

whate is meant by the term heuristic

Implementation of stack, Before programming a problem solution those employ...

Before programming a problem solution those employees a stack, we have to decide how to represent a stack by using the data structures which exist in our programming language. Stac

Explain circular queues, Circular Queues:- A more efficient queue repre...

Circular Queues:- A more efficient queue representation is get by regarding the array Q(1:n) as circular. It becomes more convenient to declare the array as Q(O: n-1), when  re

Er diagram, Ask queConsider the following functional dependencies: Applican...

Ask queConsider the following functional dependencies: Applicant_ID -> Applicant_Name Applicant_ID -> Applicant_Address Position_ID -> Positoin_Title Position_ID -> Date_Position_O

#title., Ask quapplication of data structure estion #Minimum 100 words acce...

Ask quapplication of data structure estion #Minimum 100 words accepted#

Determine the greatest common divisor, Determine the greatest common diviso...

Determine the greatest common divisor (GCD) of two integers, m & n. The algorithm for GCD might be defined as follows: While m is greater than zero: If n is greater than m, s

5/10/2013 2:49:34 AM

Thanks for suggesting me this answer, appreciate your knowledge.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd