# Tag Archives: Preorder Traversal

## Total sum except adjacent of a given node in a Binary Tree

Given a BT and a key Node, find the total sum in BT, except those Node which are adjacent to key Node. Examples: Recommended: Please… Read More »

## Number of elements smaller than root using preorder traversal of a BST

Given a preorder traversal of a BST. The task is to find the number of elements less than root. Examples: Input: preorder[] = {3, 2,… Read More »

## Arithmetic Expression Evalution

The stack organization is very effective in evaluating arithmetic expressions. Expressions are usually represented in what is known as Infix notation, in which each operator… Read More »

## Sudo Placement[1.4] | Jumping the Subtree

Given a binary search tree of n nodes with distinct values. Also given are Q queries. Each query consists of a node value that has… Read More »

## Find postorder traversal of BST from preorder traversal

Given an array representing preorder traversal of BST, print its postorder traversal. Examples: Input : 40 30 35 80 100 Output : 35 30 100… Read More »

## Find n-th node in Preorder traversal of a Binary Tree

Given a Binary tree and a number N, write a program to find the N-th node in the Preorder traversal of the given Binary tree.… Read More »

## Preorder predecessor of a Node in Binary Tree

Given a binary tree and a node in the binary tree, find Preorder predecessor of the given node. Examples: Consider the following binary tree 20… Read More »

## Preorder Successor of a Node in Binary Tree

Given a binary tree and a node in the binary tree, find preorder successor of the given node. It may be assumed that every node… Read More »

## Find next right node of a given key | Set 2

Given a Binary tree and a key in the binary tree, find the node right to the given key. If there is no node on… Read More »

## Construct Tree from given Inorder and Preorder traversals

Let us consider the below traversals: Inorder sequence: D B E A F C Preorder sequence: A B D E C F Recommended: Please solve… Read More »

## Tree Traversals (Inorder, Preorder and Postorder)

Unlike linear data structures (Array, Linked List, Queues, Stacks, etc) which have only one logical way to traverse them, trees can be traversed in different… Read More »