Java : Count even values in a Binary Search Tree recursively

Posted by user307682 on Stack Overflow See other posts from Stack Overflow or by user307682
Published on 2010-04-02T13:13:42Z Indexed on 2010/04/02 13:23 UTC
Read the original article Hit count: 154

Filed under:

java

|

bst

|

recursion

|

count

|

tree

Hi,

I need to find out how many even values are contained in a binary tree.

this is my code.

private int countEven(BSTNode root){

if ((root == null)|| (root.value%2==1))
return 0;

return 1+ countEven(root.left) + countEven(root.right);


}

this i just coded as i do not have a way to test this out. I'm not able to test it out at the moment but need an answer so badly. any help is deeply appreciated.

© Stack Overflow or respective owner

Related posts about java

Tomcat 6: Access Control Exception?

as seen on Server Fault - Search for 'Server Fault'
I'm trying to setup a tomcat6 server, and I'm trying to match another setup someone else established. However, my deployment (default Ubuntu install) uses a policy.d/ directory structure, and the established server just uses a catalina.policy file. I've tried setting every entry in policy.d to match… >>> More
Problem in creation MDB Queue connection at Jboss StartUp

as seen on Stack Overflow - Search for 'Stack Overflow'
I am not able to create a Queue connection in JBOSS4.2.3GA Version & Java1.5, as I am using MDB as per the below details. I am putting this MDB in a jar file(named utsJar.jar) and copied it in deploy folder of JBOSS, In the test env. this MDB works well but in another env. [ env settings and… >>> More
failing to establish connection between Postgres db and gwt

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I am using Postgres and gwt 2.0 for one of my applications. I am facing problem connecting to the database. When I try to connect it gives "ClassNotFoundException". Here is what I get when I try to connect to database: java.lang.ClassNotFoundException: org.postgresql.Driver at java.net… >>> More
failing to establish connection between postgre db and gwt

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, For i am using postgre and gwt 2.0 for one of my applications. I am facing problem connecting to the database. When i try to connect it gives "ClassNotFoundException". Here is what i get when i try to connect to database: java.lang.ClassNotFoundException: org.postgresql.Driver at java.net… >>> More
Migration and deployement problems JBoss 4.2.2.GA to JBoss 6.0.0.M2

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I'm trying to migrate an application running on JBoss 4.2.2.GA to JBoss 6.0.0.M2 I give you some log to explain my problem : boot.log : 2010-03-16 09:59:29,406 ERROR [org.jboss.system.server.profileservice.ProfileServiceBootstrap] (Thread-2) Failed to load profile: Summary of incomplete deployments… >>> More

Related posts about bst

Balanced Binary Search Tree (BST) (Search, PrintInOrder, PrintPreOrder, PrintPostOrder,DepthFirst, B

as seen on Code Project - Search for 'Code Project'
Balanced Binary Search Tree (BST) (Search, PrintInOrder, PrintPreOrder, PrintPostOrder,DepthFirst, BreadthFirst, BalanceTree) >>> More
Exporting a non public Type through public API

as seen on Stack Overflow - Search for 'Stack Overflow'
I am trying to follow Trees tutorial at: http://cslibrary.stanford.edu/110/BinaryTrees.html Here is the code I have written so far: package trees.bst; import java.util.ArrayList; import java.util.List; import java.util.StringTokenizer; /** * * @author sachin */ public class BinarySearchTree… >>> More
Twitter Oauth GMT / BST problem

as seen on Stack Overflow - Search for 'Stack Overflow'
I keep getting 401 when trying to login via Oauth with Twitter. I'm using twitter_oauth-0.3.3 with oauth-0.3.6 in rails It used to work perfectly some time ago, so after some digging, I realised it might have something to do with my timezone. In the headers of the Twitter response, one of them… >>> More
build a bst as an array using recursion?

as seen on Stack Overflow - Search for 'Stack Overflow'
String[] dictionary = new String[dictSize]; //arrray of strings from dictionary String[] tree = new String[3*dictSize]; //array of tree void makeBST() { recMakeBST(0, dictionary.length-1); }//makeBST() int a=0; void recMakeBST(int low, int high) { if(high-low==0){ return; … >>> More
How to Implement BST in Python

as seen on Stack Overflow - Search for 'Stack Overflow'
Which is the best data structure that can be used to implement Binary Search Tree in Python? >>> More