C++ :: Deleting Largest Node In BST Tree?

Dec 5, 2013

How would I delete the largest node in a binary search tree recursively???

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C :: Deleting Binary Tree Node?

Feb 18, 2014

I am having trouble with my deleteNode function, using recursion I am trying to delete a node from a binary tree. My tree is displayed as the following...

Tree: (node)->[left child, right child]
(k)->[g,p]
(g)->[c,h]
(c)->[ ,e]

[Code]....

The result did show that it is erased but when I try to add the erase node "t" back into the tree it still exist. I am stumped on what to do when using recursion way of deleting node.

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C++ :: How To Remove The Largest Node In A Binary Search Tree

Dec 4, 2013

How would I remove the largest node in a Binary Search tree?

function prototype:
boolean remove_largest(node *& root)
{
}

I know that if there's no right child, then the root node has to be deleted. If there is a right child, then traverse that path for the largest node. But how to make this in to code that works?

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C# :: Treeview Node Selection Show First Node Of Tree Instead Of Selected

Apr 22, 2015

I am working on C# Project [Windows Form Application], to update treeview nodes from excelsheet [xls] Cell [row i, Column 3] Values, while on selecting treenode, it should update corresponding Column 4 Value [row i, Column 4]. For me, Treenode are populated successfully, but on selecting the treenode, it always display first Element of treenode [Not selected one].

Populated Treenode from Excel as: [ Update Child Nodes from Column 3 elements [Column 2 Contain Parent node name and Column 3 have Child Node name], if Column 2 Value is same as Parent node name [My Module], update the child nodeunder same Parent node.]

for (int i = 0; i < worksheet.UsedRange.Rows.Count; i++) {
string mynode = ((Excel.Range)worksheet.Cells[i + 1, 3]).Value2.ToString();
string mynode2 = ((Excel.Range)worksheet.Cells[i + 1, 2]).Value2.ToString();

[Code] ....

On selecting the Child Node, it always give 1st Parent node. Instead of Selected Node.

for (int i = 0; i < worksheet.UsedRange.Rows.Count - 2; i++) {
string mynodetext = ((Excel.Range)worksheet.Cells[i + 2, 3]).Value2.ToString();
string mynodetext1 = ((Excel.Range)worksheet.Cells[i + 2, 4]).Value2.ToString();
if (treeView1.SelectedNode.FirstNode.Text == mynodetext) {
this.richTextBox1.SelectedText += Environment.NewLine + mynodetext1 + Environment.NewLine;
}
}

How to get correct selected Node.

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C++ :: Deleting Node In BST

Nov 11, 2014

learning deleting BST node through recursion. In my class my tutor wrote something like this for BST delete node struc:

struct node{
//data
node* root, *left, *right;
}

why not

struct node{
//data
node* *left, *right;
}
node * root;

whats the difference?

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C++ :: Deleting Node From End Of A List

May 5, 2013

I'M TRYING TO DELETE FROM THE END OF A LINKLIST...Actually I delete the last node but the problem is that I lost the end of the list, in other words my list leaved of pointing to NULL.I really don't know how to fixed, (it was more easy to delete from head)

Code :

void linkedstack::pop() {
if(head==NULL){
cout<<"The linklist is empty"<<endl;
return;}
else {
node *current=head;

[code]....

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C :: Deleting A Node From Linked List

Apr 19, 2013

I have a struct with some select student information. My wish is to be able to have the user type in a surname from the list, and for that entry to be deleted. However I am slipping up for some reason.

Here is the start of my program showing my struct:

Code:
#include <stdio.h>
#include <string.h>
#define NAME_LEN 30
#define LINE_LEN 80
struct record {

[Code] ....

I get the following errors in my while loop as well as the if statement below that loop:

-invalid operands to binary !=
-invalid type of argument '->'

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C++ ::  linked List - Deleting A Node

Mar 2, 2013

If p is a pointer pointing a node to be deleted, then what's wrong in the following code:

cout << "Do you want to delete this record? (y/n) ";
if (getch() == 'y' || getch() == 'Y'){// Delete record.
if (p == *ph){//If first node is to be deleted.
*ph = (*ph)->next;
delete p;

[Code] .....

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C++ :: Deleting Node (With Two Child) In Trees

Sep 20, 2013

I have Problems with deleting node in trees!my first problem is I don't understand the algorithm of deleting a node with two child! I write some kind of code that delete a node with two child but I think (maybe I should say I am sure ) that it has runtime or logical errors or something like that!

My second problem is my code doesn't work if my node is root of tree!because I don't know if it is root what should be the parentPtr in my code! I set parentPtr to NULL in this situation but I know it is wrong!

Here is my Code :

#include <iostream>
#include "TreeNode.h"
using namespace std;
template<typename NODETYPE> class Tree {
public:
Tree();
void insertNode(const NODETYPE &);

[Code] .....

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C++ :: Deleting Nth Node From Doubly Linked List

Sep 19, 2013

I need to delete the Nth node from a doubly linked list. I know I just cant delete it out right. I have all the goodies including a templetized node class. This is the code we're given:

template <typename T>
void doublyLinkedList<T>::deleteKthElement(const int item) {
}

It accepts an int, and should go to the Nth node and delete it.

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C++ :: Deleting Middle Node In Linked List

May 1, 2013

I am trying to delete a node from the end of a Linked List but I have some problems. Every node has it's unique code. Here is what I do:

1. Ask the user for the unique code of the node.
2. Ask him if he wants to change the data in it or delete the whole node.
3. If he chooses to delete it, I do this:

//let's say that temp1 points to the node
List *temp2 = temp1;
temp1 = temp1->next;
delete temp2;

And it's just not deleting the node.

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C++ :: Deleting Head Node In Linked List

Sep 8, 2014

I would like my function to return the data that was deleted. I have this code at the moment, where value_type is just an alias for int at the moment:

node::value_type linkedlist::removeFromHead(){
node* temp_head;
node::value_type data;
data = head_ptr->getData();

[Code] .....

When I try to use this function though, I get a segfault.

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C++ :: Displaying Last TWO Largest In A Binary Search Tree?

Dec 12, 2013

How would I display the last two largest nodes in a binary search tree recursively?

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C/C++ :: AVL Tree - Node Insertion

Apr 4, 2015

I am working with A.V.L. trees at the moment and I have to implement a program that inserts a node and if needed re-balance the tree.I have problems when I have to do a double rotation because after I insert a node the tree is messed up. This is a picture with what my program shows after i run it. [URL] .....

void length(NodeT* p,int *maxi,int l) {
if (p!=NULL) {
length(p->left,&*maxi,l+1);
if ((p->left==NULL)&&(p->right==NULL)&&(*maxi<l))
*maxi=l;
length(p->right,&*maxi,l+1);

[Code] .....

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C++ ::  Can't Delete Tree Node Without Children

Nov 14, 2014

It seems that I can't delete a node without children....

#define TRUE 1
#define FALSE 1
typedef struct binary_tree_nodes_t {
struct binary_tree_nodes_t* right;
struct binary_tree_nodes_t* left;

[Code] ....

Should my search_node function return this : binary_tree_nodes**

So I can get the address of pointer , is this causing my problem ?

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C++ :: Binary Search Tree - Delete Node

Apr 3, 2013

This is the delete function of binary search tree. However it won't enter the if-else statement that checks whether the node to be deleted is the left child or right child.

void DeleteNode(node* T, int number) {
node* x = new node;
node* current = new node;
node* dele = new node;
node* finder = new node;
finder = root;

[Code] ....

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C++ :: Binary Search Tree Delete Node

Sep 5, 2014

Below is my implementation of a Binary Search Tree, but there is a bug in the DeleteNode() function. It does not set the parent's pointer to NULL as I intended.

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C++ :: Binary Search Tree (Distance From Node To Root)

Jul 28, 2014

I have my tree, and I need to find the number in the tree (given by the user) and get the distance between the node found and the root.

What I've done so far is this, but I don't think it's correct.

void BinarySearchTree::find() {
system("cls");
BinarySearchTree b;
int num;
tree_node* cur;

[Code] ....

I founded the node, but I don't know how to determine the distance.

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C++ :: Building Binary Tree - How To Find Parent Of A Given Node

Jun 26, 2012

I'm trying this to get the hang of boost::shared_prt and weak_ptr so far I have the following

Code:
#include <iostream>
#include <string>
#include <boost/thread.hpp>
#include <boost/lambda/bind.hpp>

[Code] .....

My questions are, is the tree class defined correctly? How do I find the parent of a given node? And how does the insert part will work?

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C++ :: How Can A Breadth-first-search-tree Include Every Node Have Ancestor List

Mar 22, 2014

how can a breadth-first-search-tree include every node have ancestor list. every node have multiple ancestor list(because every node may be multiple parents)

input: undirected graph

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C :: Find Largest And Second Largest Number In Array With Their Position

Jan 30, 2013

find inserted numbers, let say 10 numbers and find the largest and second largest number with their position in an array?

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C++ :: Find Largest / Second Largest Number And Average

Apr 28, 2014

Write a program that uses two functions; one finds the largest number and second largest number; and second function finds the average. The data, comprising of 20 different temperature values, is available on a file.

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C# :: Why Is Node Click Event Changing The Node Icon

Jul 26, 2014

I'm having a hard time figuring how to get my imagelist index 3 icon to display in the nodes "N1" and "V Speeds" below? So, as you can see in the attachment, the closed folder icon is currently shown which is index 0 in the imagelist. But I want index icon 2 to show in these two nodes.

treeView.BeginUpdate();
treeView.Nodes.Clear();
treeView.Nodes.Add(new TreeNode("Checklist"));

[Code].....

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C/C++ :: Find Maximum Element From A Tree (not A Binary Tree)

Oct 31, 2014

I want to find maximum element from a tree (not a binary tree ) ???? ...using c language...

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C Sharp :: How To Get Text From Node In XML File That Contains Text And Child Node

May 21, 2013

I have a very big xml file. I read it using by xmlReader. I have problem when i reach to next line:

<title>Abasia<nemod>(-astasia) (hysterical)</nemod></title>

How I can read all that content. I have to have next string at the end: "Abasia (-astasia) (hysterical)".

I tried to use ReadElementContentAsString() for all elements, but elements like this has exception, because it has child element.

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C++ :: Create Binary Search Tree Template To Be Used To Create AVL Tree

Feb 10, 2013

For my data-structures class, I am attempting to create a binary search tree template to be used to create an AVL tree. I've written a Generic_Tree template for the BST to inherit from, and before I jump into implementing the AVL tree I'm testing the BST member functions. Everything was compiling fine until I added the BST insert() function. Now, I'm getting the following error message from my linker:

undefined reference to 'BST<void>::insert(int, void*)'

Stemming from the call in main line 16.

my makefile compiles with:
g++ -Wall -g Generic_Tree.cpp BST.cpp barfing.cpp main.cpp

Generic_Tree:

template < typename NODE_DATA, unsigned MAX_KIDS >
class Tree {
protected:
struct NODE {
NODE_DATA* contents;
Tree* child[MAX_KIDS];
Tree* parent;

[Code] ....

I'm use to c and havn't used classes or templates before (except for declaring instances of them). The whole syntax is mystifying to me,.

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