C++ :: How To Convert Array To Balance Binary Tree

Jul 2, 2014

So if I have an array how do I convert it to a balance binary tree?

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C++ :: Basic Array Based Binary Tree

Oct 20, 2013

I've been working on this assignment and but I know that I'm not handling my array properly.

#include<conio.h>
#include<iostream>
#include<stdio.h>
using namespace std;
class binaryTree {

[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++ :: Convert Each Of Elements Of Sum Array Into Binary

Nov 9, 2014

Platform : c++, compiler: GNU gcc

I am new to programming and have written the code for the following program.

PROGRAM: Input 2 arrays => arrays 1 and 2 from the user each containing 5 elements. Sum is another array which is sum of elements of array 1 and array 2. Convert each of the elements of the sum array into binary. Count number of 1's in each binary element and output it to another array "arr".

Example: arr1 = {1,2,3,4,5}
arr2 = {6,7,8,9,10}
sum = {7,9,11,13,15}
binary of 7 [111], 9[1001], 11[1011], 13[1101], 15[1111]
No of 1's in 7 [3], 9 [2], 11 [3], 13 [3], 15 [4]
arr array will be {3, 2, 3, 3, 4}

I am not getting the desired output. My code is:-

include <iostream>
using namespace std;
int main() {
int array1[5];

[code].....

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C++ :: Convert Binary Search With Int Array To Use String Array

May 8, 2014

I'm having trouble converting this binary search with an int array to use a string array..

Code:

#include <iostream>
#include <string>
using namespace std;
// Function prototype
int binarySearch(string [], int);

[Code] .....

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C++ :: Convert Binary To Base10 - Array Initialization Skipping Straight To Int Main?

Mar 3, 2013

I am attempting to write a program that converts binary to base10, and vice versa.

But in the function for converting Base10 to Binary, just as it reaches the line of code

int* binary = new int [a];
it skips straight to the int main()

All I'm attempting to do with that line of code is initialize the variable "a" into the elements of the array "binary".

[URL] ....

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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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C++ :: Printing A Binary Tree?

Feb 1, 2014

It only prints out the root in an infinite loop.

Code: void Btree::printTree(Node* tree)
{
tree=root;
if (tree != NULL)
{
std::cout<<" "<< tree->key;
printTree(tree->left);
printTree(tree->right);
}
}

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C++ :: Search Binary Tree

Aug 12, 2014

It has been a while since I built a binary tree from scratch so I decided to do it. Everything works fine but this one function. When I enter a number to search it just keeps running and allowing me to keep enter numbers.

Code:
void tree::search(int key,Node* leaf) {
if (leaf == NULL) {
std::cout<<"The tree is empty

[Code] ......

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C :: Function Max In Binary Tree

May 28, 2013

I have a problem with the C code . I created two functions, one that runs through the tree inorder, the other that returns the maximum value in the tree. The problem is when I use in the main the method "max", which goes in a loop and not print anything on the screen . If I remove the call to method "max" it works fine. Here's the code:

Code:

#include<stdio.h>
#include<stdlib.h>
#define bool int
/* A binary tree tNode has data, pointer to left child
and a pointer to right child */
struct tNode {

[Code]...

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C++ :: Binary Tree Source?

Jul 12, 2013

I just want to ask if some of you know good source for learning about Binary Trees.

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C/C++ :: Searching A Binary Tree?

Mar 1, 2015

I've almost got my code working. My issue is, if I type in either one of the first two id numbers, it finds the person and displays as it's supposed to, however if I type any of the last 6 id numbers it says id not found. I've been staring at this forever and can't see what I'm missing />/> ps, I haven't added in all my comments yet Binary tree template

//Binray tree template class
#ifndef BINARYTREE_H
#define BINARYTREE_H

[Code].....

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C/C++ :: How To Print Binary Tree

Jan 14, 2015

I want to print binary tree in this form on screen

1
/
2 3
/ /
4 5 6 7
/ /
8 9 10 11

This is the code for creating Binary Tree:

#include<stdio.h>
struct node
{
int data;
struct node *right;
struct node *left;
};
struct node *root = NULL;
int main ()
{
struct node *child, *temp;

[Code]...

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C++ :: How To Build Binary Tree With Values

Dec 29, 2013

I am not sure how to build the tree with values:

Code:
struct Node *root = 1 root->left = 2
root->right = 3
root->left->left = 4;
root->left->right = 5;

Everything should be right except the main(). How to demonstrate this program correctly?

Code:
#include <iostream>
#include<stdio.h>
#include<stdlib.h>
#include <stack> // std::stack

[Code] .....

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C++ :: Copy Control Of Binary Tree

May 17, 2013

I have implemented a copy control version of binary tree.. As I am a Beginner. I think i have made my mistake.

Code:
#include <iostream>
#include <string>
class TreeNode{
TreeNode(const std::string &val):value(val),count(new int(1)){}
TreeNode(const TreeNode& rhs):value(rhs.value),count(count),left(rhs.left),right(rhs.right){++*count; }

[Code] ......

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C++ :: Binary Search Tree With Templates?

Oct 27, 2014

I am trying to implement BST using templates. This is the code that i have written.

Code: template <class T>
struct node
{
struct node *left;

[Code].....

There are no errors but the program hangs. What is the mistake with this program ?

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C :: Find Sum Of Depths In Binary Tree

Jun 18, 2013

I need to write a program to find the sum of depths of a binary tree, where a depth is by definition the shortest distance between a node and the root. I am required to code this using recursion.

I was thinking of first coding a helper recursion to find the depth for each node. What would be the best way to do that? If I could move from the node to the root, I believe programming this helper recursion would not be very difficult. Is there a way to progress from the node to the root?

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C :: Binary Tree Insert Function

Mar 31, 2014

I am having trouble writing an insert function for a binary tree.

Here is the structure that I have to use.

I have the print function done, the insert function is the one I am having trouble with,

Code:

typedef struct bt_{
int value;
struct bt_ *right;
struct bt_ *left;
}BST;

[Code].....

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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++ :: Height Or Depth Of Binary Tree

Feb 23, 2014

I'm in interested to know what will be the height of binary tree with say 5 nodes (consider it balanced) is it 2 or 3?

9
/
5 13
/
3 7

and for following tree also:

2
/
7 5
/
2 6 9
/ /
5 11 4

is it 3 or 4?

i'm asking because, not able to find correct/one answer.

the algorithm i find is:

depth(struct tree*t) {
if ( t == NULL) return 0;
return max( depth(tree->left), depth(tree->right) ) + 1;
}

According to it, ans for second will be 4

But as per image on wikipedia [URL] .... the ans is 3

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C++ :: How To Insert Item Into Binary Tree

Jun 30, 2013

I am trying to write a function that inserts an item into this binary tree in C++.

template <typename T>
struct BTree {
T val;
BTree<T>* left;
BTree<T>* right;
BTree(T v, BTree<T>* l=nullptr, BTree<T>* r=nullptr) :
val(v), left(l), right(r) {}
};

Here's my attempt.

template <typename T>
void insert(BTree<T>* tree, T item) {
if (tree == nullptr) {
tree = new BTree<T>(item);
} else if (item < tree->val) {
insert(tree->left, item);
} else {
insert(tree->right, item);
} }

I think this function may not be working because I am modifying `tree`, which is a local variable. How do I actually modify the current pointer that `tree` represents, not just `nullptr`?

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C++ :: Reading TXT File Into Binary Tree

May 30, 2013

How to store values from a .txt file delimited with semicolons (;) into a class which is then stored into a Binary Search Tree. After browsing Google for a few hours, and trying various examples of people using Vectors, I just can't seem to get my program to work using Object Oriented Programming with an instance of the class Person.

My two classes are Person, and BinarySearchTree as follows:

class Person{
private:
string first_surname;
string second_surname;
string name;
int ID;

[Code] ....

Ok so my text file saves the data of each person in the same order as the class with each value separated by a semicolon.

i.e. First_Surname;Second_Surname;Name;ID;Telephone;Score;

void fillTree( BinarySearchTree *b) {
string input[7];
Person p;
fstream file("scores.txt", ios::in); // reads text file
if(file.is_open()) {

[Code] ....

I understand that I get an error because a vector is saved as integers, and I am using strings, my question is, any other way to read the .txt file and save each data separated by a semicolon, into the Person class?

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C++ :: Storing 234 Tree In Binary File

Mar 20, 2014

How would I store a 234 tree in a binary file?

I've never worked with trees or binary files before so it is very confusing.

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C++ :: How To Implement binary Tree Using A Class

Aug 23, 2013

I'm trying to implement a binary tree using this class:

class btree {
public:
int key;
btree *left;
btree *right;
btree(){left=NULL; right=NULL;}
void insert(int key);

[Code] ....

gives me the following error:

albero_binario1.cpp: In member function ‘void btree::insert(int)’:
albero_binario1.cpp:34:18: error: lvalue required as left operand of assignment
albero_binario1.cpp:39:15: error: request for member ‘insert’ in ‘((btree*)this)->btree::right’, which is of non-class type ‘btree*’
albero_binario1.cpp:41:14: error: request for member ‘insert’ in ‘((btree*)this)->btree::left’, which is of non-class type ‘btree*’

what can i do?

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C++ :: Binary Search Tree Printing

Apr 19, 2014

I am not sure how to use the parameters ostream and enum type in a print function.

enum TraversalOrderType {preorder, inorder, postorder};
template <class ItemType>
void Tree<ItemType>::print(ostream & Outstream, TraversalOrderType order) {

[Code] ....

Is this the correct way to call the print function?

int main() {
Tree<int> tree1;
tree1.print(cout, preorder);
return 0;
}

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C++ :: Binary Search Tree Remove?

May 10, 2014

I don't know why, but my remove function doesn't seem to operate properly. The rest of my code is fine, so I am trying to pinpoint the exact location of my error. The else if statement remove(root->left, data) should've been called twice, but it only called once.

BST* smallestNode(BST* root)
// precondition: T is not null
// postcondition: return the node in the subtree rooted at T that

[Code]....

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