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Binary Tree

Print all nodes that are at distance k from a leaf node

October 9, 2014 by Dhaval Dave

Given a Binary Tree and a positive integer k, print all nodes that are distance k from a leaf node.

Here the meaning of distance k from a leaf means k levels higher than a

… Read More

Filed Under: Amazon Interview Question, Flipkart Interview Questions, Interview Questions, Microsoft Interview Questions, problem Tagged With: Binary Tree, tree

Check Binary Tree is Binary Search Tree or not

July 29, 2014 by Dhaval Dave

To search Binary Search Tree
First lets understand characteristics of BST
• The left subtree of a node contains only nodes with keys less than the node’s key.
• The right subtree of a node
… Read More

Filed Under: Interview Questions, problem Tagged With: Binary Search Tree, Binary Tree, BST, tree

Print vertical sum of all the axis in the given binary tree

July 15, 2014 by Dhaval Dave

Print Vertical Sum of all the axis in the given binary Tree.

Most of times in written test , you will encounter this very good question.
given a binary tree.
(most of times a complete
… Read More

Filed Under: Amazon Interview Question, Flipkart Interview Questions, Interview Questions, Microsoft Interview Questions, problem Tagged With: Binary Tree, tree

Inorder and Preorder traversals of a Binary Tree given. Output the Postorder traversal of it.

March 25, 2014 by Dhaval Dave

Generate Postorder traversal of Tree from Inorder and Preorder traversal of tree without generating Tree.

Input:
In-order traversal in[] = {4, 2, 5, 1, 3, 6}
Pre-order traversal pre[] = {1, 2, 4, 5, 3, 
… Read More

Filed Under: Adobe Interview Questions, Interview Questions, Microsoft Interview Questions, problem Tagged With: Binary Tree, tree

Binary Tree in Java

March 19, 2014 by Dhaval Dave

Implementation of Binary Tree in Java Language.

import java.io.*;
import java.util.*;
class Node
   {
   public int iData;              // data item (key)
   public double dData;           // data item
   public Node leftChild;         // this node's left child
   
… Read More

Filed Under: problem Tagged With: Binary Tree, Java

BFS (Breath First Search)

March 1, 2014 by Dhaval Dave

In graph theory, breadth-first search (BFS) is a strategy for searching in a graph when search is limited to essentially two operations: (a) visit and inspect a node of a graph; (b) gain access to

… Read More

Filed Under: problem Tagged With: Binary Tree, Graph, tree

DFS (Depth First Search)

March 1, 2014 by Dhaval Dave

DFS BFS Graph traversal

Depth-first search (DFS) is an algorithm for traversing or searching tree or graph data structures. One starts at the root (selecting some arbitrary node as the root in the case of a graph) and explores

… Read More

Filed Under: problem Tagged With: Binary Tree, Graph, tree

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