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

Size of stack, The size of stack was declared as ten. Thus, stack cannot ho...

The size of stack was declared as ten. Thus, stack cannot hold more than ten elements. The major operations which can be performed onto a stack are push and pop. However, in a prog

What are the things require to implement abstract data types, What are the ...

What are the things require to implement ADT Abstract data types are very useful for helping us understand the mathematical objects which we use in our computations but, of cou

Algorithm of binary search, Step 1: Declare array 'k' of size 'n' i.e. k(n)...

Step 1: Declare array 'k' of size 'n' i.e. k(n) is an array which stores all the keys of a file containing 'n' records Step 2: i←0 Step 3: low←0, high←n-1 Step 4: while (l

Define binary tree, Define Binary Tree  A binary tree T is explained as...

Define Binary Tree  A binary tree T is explained as a finite set of nodes that is either empty or having of root and two disjoint binary trees TL, and TR known as, respectively

Pipelining., How branching takes place in Instruction pipeline. Explain wit...

How branching takes place in Instruction pipeline. Explain with suitable examples

Algorithm for stack using array, write an algorithm for stack using array p...

write an algorithm for stack using array performing the operations as insertion ,deletion , display,isempty,isfull.

Define a procedure called make-avl-tree, This question deals with AVL trees...

This question deals with AVL trees. You must use mutable pairs/lists to implement this data structure: (a) Define a procedure called make-avl-tree which makes an AVL tree with o

Link list, algorithm for multiplication of two sparse matrices using link l...

algorithm for multiplication of two sparse matrices using link list

Explain the bubble sort algorithm, Explain the bubble sort algorithm. ...

Explain the bubble sort algorithm. Answer This algorithm is used for sorting a list. It makes use of a temporary variable for swapping. It compares two numbers at an insta

Explain decision tree, Decision Tree A decision tree is a diagram that ...

Decision Tree A decision tree is a diagram that shows conditions and actions sequentially and therefore shows which condition is to be considered first, second and so on. It is

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