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Tag Archives: Preorder Traversal

Given a Binary Tree, where each node contains an extra empty pointer initially null. The task is to connect all nodes of the binary tree… Read More
Given a Binary tree and a node. The task is to search and check if the given node exists in the binary tree or not.… Read More
Given a Binary tree, Traverse it using DFS using recursion. Unlike linear data structures (Array, Linked List, Queues, Stacks, etc) which have only one logical… Read More
Given an n-ary tree, print preorder traversal of it. Example :   Preorder traversal of below tree is A B K N M J F D… Read More
Given a BST and a number. The task is to check whether the given number is equal to the sum of all the node from… Read More
Given a K-ary Tree. The task is to write an iterative program to perform the preorder traversal of the given n-ary tree. Examples:   Input: 3-Array… Read More
Given a BT and a key Node, find the total sum in BT, except those nodes which are adjacent to key Node. Examples:    Recommended: Please… Read More
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
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
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
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
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
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
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