C :: Dynamic Array Of Linked List

Jan 29, 2014

I am trying to create an dynamic array (lno) This array will store addressess of different Linked list. What exactly I want is:- Take N Number of Linked List user want to create> eg. 2 now It will create 2 linked list for which I am trying to allocate memory.

Code:

struct node{
int data;
struct node *next;
}

first;
lno[0] Node 0's first address stored in ln[0] lno[1] Node 1's first address stored in ln[1] Here is the code in which I am facing problem with error Illegal structure Operation

Code:

#include<conio.h>#include<stdio.h>
#include<stdlib.h>
struct node
{
int data;
struct node *next;
};

[code]....

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C++ :: Linked List And Dynamic Allocate

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I'm learning now linked list and dynamic allocate. I don't know how can I answer the program writing exercises.

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Nov 24, 2014

I have a 2D array, array[20][3]. Each row represents a storm and each column represents month #, wind speed, and pressure in that order. This data is read from a file and auto-fills the array. I need to be able to give users the ability to add an additional storm or delete a storm. I know that a linked list would be the best approach but I'm not very familiar with linked lists.

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C++ :: Linked List Or Sorting An Array?

Feb 2, 2015

I have an algorithm and I want to make it as efficient as possible. Basically it just involves putting numbers in order. I have two options, but which one would be more efficient:

1. Using a doubly linked list. Every time a user wants to add a new number, the algorithm will start searching the correct place for the number from the beginning of the list. This is efficient per se, but once there are about a million numbers and a number has to be put in at the end of the list, the algorithm must go through all the 999 999 numbers before it.

2. Using a container to store all the numbers first, then sorting the numbers. In this case, adding all the numbers is fast, but the actual sorting will take a long time.

Which option would be more efficient? I was thinking of using maybe merge sort or quick sort in option 2. Yes, I'm aware I could just use vector and sort, but that's not my goal here.

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C++ :: Sorting Array By Using Linked List

Apr 3, 2014

I have two arrays of characters that I want to combine and sort according to an internal variable (init) using a forward-iterating linked list. The two arrays must stay separated, as one of the arrays (the enemies) is contained within the object (encounter), the other is passed in via pointers (the players). The array inside the object will be destroyed later (when the encounter is over and the enemies are hopefully dead) while the one that is passed in must survive to be passed into other objects at a later time (the next encounter). My thought is to sort each array by linked list separately first, then iterate through and combine the two lists, But how to do this and no support IRL.

// DECLARATION OF CLASSES //
class character{
public:
character(); // Constructor

[Code]....

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May 1, 2014

I am having problems implementing ArrayList using templates. I was given a program and I have to create this implementation to make it work. It keeps giving me an error "invalid operands to binary expression" .....

ifndef Final_4_ArrayList_hpp
#define Final_4_ArrayList_hpp
#define MAX 10;
#include "List.hpp"
template <class T>
class ArrayList : public List <T> {

[Code] ....

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C :: Merge - Array Sort On Linked List

Oct 15, 2014

This is in response to the bubble sort and selection sorts for linked lists. On my system, (Intel 2600K, 3.4ghz), it sorts a list with 4,194,304 nodes containing 64 bit unsigned integers in about 1.05 seconds.

Code:
#define NUMLISTS 32
/* number of lists */
typedef unsigned long long UI64;
typedef struct NODE_{
struct NODE_ * next;
UI64 data;

[Code]....

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C++ :: Possible To Copy All Data From Linked List Into Array

Dec 24, 2013

using the following header files:

Code:
#include <list>
#include <map>
#include <iostream>
#include <algorithm>

and

Code:
std::list

If there is a creation of a list, how can one find the sizeof the list. and is it possible to copy all the data from the linked list into an array. Assuming that the data is of type

Code:
char

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C :: Quick Sorting Array Of Nodes In A Linked List?

Oct 19, 2013

I'm trying to sort the elements in a linked list which contain a variable amount of data in any given case. In the sample code, the code is more static, but I plan on adding it to much more dynamic code once I have it figured out. My main problem is that I am not sure how to sort the linked list while still keeping the correct pointers to the nodes. I thought about writing my own custom quick sort instead of using the C-standard library function, but how I would keep the pointers to the next nodes correct eluded me. Here is my code so far :

Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

[Code]......

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Nov 27, 2014

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C++ :: 2D Array To Simulate Linked List For Stack Construction

Feb 13, 2013

I'm trying to implement 2d array to simulate linked list for stack and I faced several difficulties doing so.

How do I implement from Top to Bottom ordering? How do I check random index value for validity?

Source-code:

Code:
#include <iostream>
using namespace std;
int myTop, index, nex = -1;
int twoDimentionalArray[25][3], L[25];

[Code].....

And one more thing: how do I get straight 0 from 25 index in the first coulumn?

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C/C++ :: Creating Singly Linked List / Loading Class Type Array

Aug 6, 2014

I've written this class and struct to create a singly linked list. The data is stored in the binary file which I've opened and read. I'm trying to load said data into a class type array. The errors I'm getting are "incompatible types in assignment of 'StatehoodInfo' to char[3]" Lines 130-134 is what I was working on.

#include <iostream>
#include <iomanip>
#include <fstream>
#include <sstream>
#include <string>
#include <cstring> //For char[] string functions

[Code] .....

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C :: Program To Simulate Taxi Rank Implemented As Queue Via Array - Linked List

Mar 26, 2013

I have an assignment where i am required to code up in C, a program to simulate a taxi rank that is implemented as a queue via an array that can hold up to a maximum of six taxis.When a taxi arrives, it joins the rear of the queue. When a taxi departs, the first taxi in the rank is used and its departure is logged.A "rolling menu" comprising integer codes as specified below is used until 0 is entered to exit the simulation. I've done this stage but now the next stage is asking me to implement the queue as a linked list. what the difference is between an array and a linked list and what is a linked list?

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C++ :: Creating A Linked List Of Common Elements From Two Other Linked Lists

Apr 29, 2013

I'm trying to write a function that takes two linked lists and creates a third one with only the common elements.

It assumes the first list (the caller) has no dups, but it doesn't seem to be working. The program doesn't crash, it just hangs when it is supposed to display L3 (the third list)..everything else runs and is displayed fine.

template <typename T>
LList <T> LList <T>:: common (LList <T> &B)//common fct
{
Node <T> *hunter1 = Head;

[Code]......

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Oct 14, 2013

In our homework assignment it states to, "write a set of dynamic linked lists" and so on. Now, the problem I'm confusing myself is at the storage inside of each node. To my understanding, each node contains the prev and next nodes, but also a pointer to the data, in this case being a string. He has asked us to manage these strings as rows of chars such as

char[0] = c // first node being addressed here
char[1] = a
char[2] = t
char[3] =
char[4] = d // second node starting here
char[5] = o
char[6] = g
char[7] =

I have written my code where each node is holding a string, not separated as shown above... my question is to how you can build your doubly linked list where each node is being address a set of chars.

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Jan 4, 2013

I'm writing a program in which I have to use a matrix to represent a file in code. because it's a file, the size of the matrix is undefined, and therefore the matrix has to be dynamic. I found out that my compiler doesn't like dynamic multidimensional arrays, so I was thinking of this matrix as a dynamic (monodimensional) array of other dynamic (monodimensional) arrays. My program (and thus this example) uses unsigned chars.

unsigned char variable=something;
unsigned char**matrix=new unsigned char*[lenghtOfMainArray];
for(int rowNumber=0;rowNumber<lenghtOfArray;rowNumber++)
{

[Code].....

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Jun 29, 2013

I have a linked list comprised of chars like so...

Code:

node1 - "p"
node2 - "o"
node3 - "p"

I need a function that will take in three perameters...node *replaceChar(node *head, char key, char *str)Stipulations of this function. head is the head of the list, 'key' and 'str' are guaranteed to contain alphanumeric characters only (A-Z, a-z, and 0-9). str can range from 1 to 1023 characters (inclusively). So if I call this function with these perameters..

Code:

node *head == /*the head of the list to be examined*/
char key == "p"char *str == "dog"The new list will look like this...
node1 - 'd'
node2 - 'o'
node3 - 'g'
node4 - 'o'
node5 - 'd'
node6 - 'o'
node7 - 'g'

All instances of 'p' were replaced with 'dog' I have a toString function which takes in a string and converts it to a linked list and returns the head. So assume that you can call the function on str = "dog" so...

Code:

toString(str) == /*this will return the head to the list made from the str*/

If it's unclear what my question is...I am stumped on how to write the replaceChar function the one that takes in three perameters..

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C :: Linked List / Adding Element To Beginning Of List

Dec 31, 2014

Code:

// Write a function called insertEntry() to insert a new entry into a linked list.

Have the procedure take as arguments a pointer to the list entry to be inserted (of type struct entry as defined in this chapter), and a pointer to an element in the list after which the new entry is to be inserted.

// The function dveloped in exercise 2 only inserts an element after an existing element in the list, thereby prenting you from inserting a new entry at the front of the list.

(Hint: Think about setting up a special structure to point to the beginning of the list.)

#include <stdio.h
struct entry1 {
int value;
struct entry1 *next;
};

[code]...

This is a working version of the exercise, but I don't think I'm doing what's asked. I was able to add an element to the beginning of the list using an if statement, not creating a special structure that points to the beginning of the list. How would I go about creating a special structure that points to the beginning of the list to add a new element at the beginning of the list?

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Apr 23, 2013

I am struggling to finish up my game of War. There are a few problems I have ran in to. My shuffle function seems to work fine. I believe my problem lies within my game rules. When I run my code, the game usually plays all the way through but almost always ends in 'War'. I am struggling to get the game to restart after running once. I am not sure how to clear the list and start over.

Code:
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <time.h>
#include <Windows.h>

[Code] ....

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Oct 17, 2014

i just need clarification on if this is what is considered a dynamic list of characters, i don't want a linked list.

Code:

struct dlist {
int size;
int maxsize;
char *datafield;
};

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C# :: How To Order A Dynamic List

Nov 11, 2014

I have to following:

List<string> keyList = new List<string>();
keyList = data.First().Keys.ToList();

I also have a table with a column called display_order which i need to use in the order by

I have tried:

keyList = data.OrderBy(s => s.).ToList();
keyList = data.First().OrderBy(keyList).ToList();
orderBy = "Display_Order asc";
keyList = data.First().OrderBy(orderBy).ToList();
keyList = data.First().OrderBy().ToList();
keyList = data.First().OrderBy(keyList.display_order).ToList();

Am I missing something?

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May 30, 2013

I'm working on a linked list and was wondering how this looks to everybody else for a deleteList function.

void deleteList(Node* head)
{
Node* iterator = head;
while (iterator != 0)

[code].....

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C :: Doubly Linked List

May 15, 2013

I need to make the functions using these function prototypes. I am mainly having problems with GetFirst() and SwapData() but how to do it..

Header File with Prototypes
Code:
#ifndef LINKEDLIST_H
#define LINKEDLIST_H
/**
* @file
* This file provided a doubly-linked list implementation capable of storing any arbitrary data.
* The list implementation relies on a chain metaphor: a list is merely a sequence of links
* (ListItems) and there is no separate construct to represent the entire list, each ListItem in it

[Code]....

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May 7, 2013

I read an article on linked list here: C Linked List Data Structure Explained with an Example C Program

Code:

struct test_struct* search_in_list(int val, struct test_struct **prev)
{
struct test_struct *ptr = head;
struct test_struct *tmp = NULL;
bool found = false;
}

[code].....

What is "if(prev)"? Wouldn't "prev" always have the same value? Secondly, if tmp is NULL (which will be the case when the loop if(ptr->val == val) finds a match the first time it is run), is *prev assigned a NULL?

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Jan 2, 2014

I'm having a small issue here with my linked list.I built a linked list with strings and it worked perfectly.Now since i'm using strtok() to separate the string.for now here's what i've got:

Code:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
typedef struct dict_word *word;
typedef struct node *Node;
typedef struct double_linked_list *DLL;
}

[code]....

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