C++ :: Want To Return A Node Using Recursion

Mar 28, 2013

So the task is to find the node with minimum value of a binary tree (not binary search tree). the input is the pointer to the root of the tree. and i cannot make recursion work when i do if conditions. here is what i have

CPPtr minimumvalue(CPPtr SP){
CPPtr min = NULL;//node of minimum value

if(SP== NULL){// if there is a node, begin comparing
return NULL;

[Code] ....

No matter where i call my function i get errors like unhandled exception at some memory. How to use recursion in this?

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C++ :: Return A Node Using Recursion

Mar 27, 2013

So the task is to find the node with minimum value of a binary tree (not binary search tree). the input is the pointer to the root of the tree. and i cannot make recursion work when i do if conditions. here is what i have Code: ​/*function 3-takses as input the pointer to the root of the tree and returns a pointer to the node with the minimum value*/

CPPtr minimumvalue(CPPtr SP){
CPPtr min = NULL; //node of minimum value
if(SP== NULL){ // if there is a node, begin comparing
return NULL;
}
else{
if(SP->data<SP->left->data){ //if the node has smaller value than its left child
min = SP; //update node of minimum value

[code].....

no matter where i call my function i get errors like unhandled exception at some memory. how to use recursion in this?

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C++ :: Use Recursion Function That Return If String Has Same Letters

Aug 12, 2013

I've to use recursion function that return if the string has a same letters:

for example: - fff = true
- fFf = false

I did this but the return answer is always: NOT!

bool iSameLetters(char str[SIZE]) {
if(str[0]='')
return true;
else {
if((str[0] && iSameLetters(str+1) == str[0]))
return iSameLetters(str+1);
return false;
}
}

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C/C++ :: Node Data Return Type?

Apr 7, 2014

In my main I have a do/while loop, which is to iterate around the method calculateImportance while i is not equal to the numNodes.

do
{
int i;
int numNodes = Test.count();
for(i=0; i<=numNodes; i++)

[Code]....

I have been messing around with the data type node, hence why it is there are present, but, that doesn't seem to the answer

This is the function declaration in the header file.

node CalculateImportance();

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C :: Unable To Return Struct Node Without Using Pointers

Jul 20, 2014

I'm quite new to C and these days I have been playing around with a linked list. I managed to make a working version using pointers, ad only for the sake of learning I was trying to do the same thing just passing the "Object reference" Here is the method that apparently doesn't work..

Code:

struct Node addNode(struct Node head){
int value;
struct Node *n;
printf("Please enter the value
");
scanf("%d", &value);

[Code]...

when I return the function i have something like: head=addNode(head)

Unfortunately it does not work the way I aspect. I suppose that there is something I have left out..

Code:
like n->next=&head
// passing the address of the head at the next pointer of the struct
head =*n
//copy the values of the new node to the old head..

There must be something wrong with this line.. return head; What have I done wrong?

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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# :: 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 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 :: Will Return Root Statement At End Ever Return Value Other Than Value Passed To Function?

Mar 29, 2013

I'm writing some functions pertaining to binary trees. I've used recursion once before while learning quicksort but am still quite new and unfamiliar with it. And this is my first time touching a binary tree. So my question: In my addnode function, will the return root statement at the end ever return a value other than the value passed to the function?

Code:

#include <stdlib.h>
struct tnode
{
int data;
struct tnode * left;
struct tnode * right;
}

[code]....

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C++ :: Return By Reference - Statement Doesn't Return Value Of N

Jan 11, 2015

From the page: [URL] ....

#include <iostream>
using namespace std;
int n;
int& test();

[Code] ....

Explanation

In program above, the return type of function test() is int&. Hence this function returns by reference. The return statement is return n; but unlike return by value. This statement doesn't return value of n, instead it returns variable n itself.

Then the variable n is assigned to the left side of code test() = 5; and value of n is displayed.

I don't quite understand the bold sentence. Shouldn't value of n and variable n be the same?

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C# :: Algorithm With Recursion Use

May 12, 2014

To construct and write down algorithm of determination of the sum of squares of consecutive integers with recursion use. I tried to do something:

public static int RecSumSquare(int x, int n)
{
if (n < 0) throw new ArgumentException("n should be greater than zero");
if (n == 0) return 0;
else return x*x+RecSumSquare(x, n - 1);
}

But I don't know as the beginning and the end of this algorithm will look.

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C/C++ :: How To Decipher Recursion

May 4, 2014

Suppose I'm given the following code:

int mystery(int n){

int something;
if(n > 0)

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C :: Use Recursion To Permutate Scores

Feb 8, 2013

I have this problem set that has to use recursion to permutate scores. I have read in all the numbers and have tested that it works . l have also attached what I have so far. Here is what I think I need to do:I have to pass the structs into this permutation algorithm that is here:

Code:
#include <stdio.h>
void ListPermutations(char str[]);
void RecursivePermute(char str[], int k);
void ExchangeCharacters(char str[], int i, int j);

[Code]....

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C++ :: File Recursion Limitation?

Apr 28, 2013

It seems that boost's file recursion requires that the file using the recursion must be in the include path. This makes using file recursion in a library header a problem as libraries may be located in a subdirectory of an include path (which is minor since the programmer can state the subdirectory in the recursive file call as long as it is not relative to the calling file). I also found it a problem when the main compile directory isn't in the compile path.

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C++ :: Recursion To Loop Using Stack

Oct 15, 2014

I want to convert the following program into a non-recursive code using a stack and a loop:

void write(int n) {
if (n>0) {
write(n-1);
cout << n << " ";
write(n-1);
}
}

And here is the code I am using but that currently does not work, and I do not know why:

stack<int> S;
S.push(n);
while (not S.empty()) {
int k = S.top();

[Code] .....

How to simulate that recursion. I thought it was enough to push into the stack the equivalent recursive call.

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C++ :: Reverser Function Using Recursion?

May 8, 2014

So i have a program it works which takes in a word reverses it prints it out. BUT! the problem is that the program is without recursion. convert the function into recursion.

#include <iostream>
#include <iomanip>
#include <fstream>
#include <string>

[Code].....

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C/C++ :: Recursion With Printing Strings?

Oct 20, 2014

I am trying to print an outline. My code works up to a depth of 3. (The depth is the number of subsections - so 3 would be section 1, section 1.A, and section 1.A.1). It also works for a width (number of sections and each type of subsection) of 26, where it is capped. However, to get a larger depth, it would involve many more loops. Not only is that terrible code, it also freezes up the terminal I'm working on. I believe recursion would make it much nicer, but I'm struggling to grasp the idea when using a string (I understand when it is a number).

#include <stdio.h>
int sec(int width, int snum) {
char section[100];
sprintf(section, "Section ");

[Code].....

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C/C++ :: Factorial Program With Recursion

Nov 9, 2014

I put some checks in factorial program, I am confused how 27, 40 50 is coming in output and ans is 10.

#include<stdio.h>
int fact(int n) {
if(n==1) {
printf("hello1 %d
",n);
return 1;

[code].....

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C++ :: Recursion With Linked List

Aug 28, 2013

I have a linked list I made and am practicing a simple recursion function sum() which returns the sum of all numbers in each node of the list. Here is my sum() function:

int sum(ListNode *ptr){
if (ptr->next)
return (ptr->num + sum(ptr->next));
else
return(0);
}

where the initial arg passed through the ListNode * parameter is my head node (with null value). The output is fine until that point, then the program locks up and I get the "...has stopped working" error.

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C/C++ :: Recursion Using Linked List

Apr 28, 2014

I have been asked to write three functions for a Liked List that can add remove and reverse the elements of the Linked List. Now, I have done the add function and It is displaying the elements properly using recursion function. But My removal function is not working and I tried all the possible logic I can think of, I dont know, where did I make mistakes.

This is My class for the Linked List

#ifndef __Linked_Lists_Recursive_function_Implementation___NumberList__
#define __Linked_Lists_Recursive_function_Implementation___NumberList__
#include <iostream>
using namespace std;

[Code]....

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C/C++ :: How To Input A Recursion Method

Feb 7, 2015

I am trying to input a recursion method. The code compiles, however, it is only giving me a value of 1. I am wanting the value of 5 when it is compiled. Why is this?

#include <iostream>
using namespace std;
int number(int x) {
if (x == 1)

[Code] ....

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C++ :: Recursion - How To Print To The Screen Value Of N After It Has Been Multiplied

Mar 20, 2013

How to print to the screen the value of n after it has been multiplied.

For example: if I use cout << "n: " << n << " power: " << power << "
"; I

can see the variable "power" decrementing by 1, but I don't see the variable "n" incrementing with its new value after it has been multiplied by n * n.

#include <iostream>
using namespace std;
typedef unsigned short int USHORT;
typedef unsigned long int ULONG;

ULONG Getpower(USHORT n, USHORT power);

[Code] .....

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C++ :: Converting Decimal To Binary Using Recursion

Feb 25, 2013

I'm trying to write a program that converts a decimal number to a binary one. I have most of the program written, but I am having a little bit of trouble. Whenever I enter a decimal number, the program will convert it correctly to binary, however, the last number is not included in the conversion. EX: Converting 37 into binary (0100101) yields 010010 when entered into the program. BTW the program must utilize recursion to achieve this goal.

#include <iostream>
using namespace std;
void decToBinary(int num1);
int main() {
int num1;

[code]....

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C++ :: Sorting Array Of N Given Elements Using Recursion?

Dec 29, 2013

I need to sort an array of n given elements using recursion. What am i doing wrong here?

#include <iostream>
using namespace std;
int i=0, j=1, v[100], n;

[Code].....

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C++ :: How Do Function Count Factorials - Recursion

Apr 3, 2013

How do function count factorials in this program?

#include<iostream>
#include<conio.h>
using namespace std;
void main(){
unsigned int factorial(unsigned int value);

[Code] .....

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C++ :: Drawing A Rectangle And Diamond Using Recursion?

Oct 23, 2013

write a code that draw a block and diamond each in a single run by using '*' in recursion.

Below are one 10X10 rectangle and 6X4 diamond.

**********
**********
**********
**********
**********
**********
**********
**********
**********
**********

**
* *
* *
* *
* *
* *
* *
* *
**

Note: I couldn't write the diamond here appropriately somehow.

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