linked-list

Dynamic array VS linked list in C++ [duplicate]

隐身守侯 提交于 2020-01-12 06:20:20
问题 This question already has answers here : Linked List vs Vector (5 answers) Closed 3 years ago . Why we need a linked list when we have dynamic array list? I have studied static list and linked list. I have knowledge of dynamic array list. but I couldn't find out the exact difference between that Anyone please help me to answer this 回答1: Dynamic array is an array that resizes itself up or down depending on the number of content. Advantage: accessing and assignment by index is very fast O(1)

Traversing through Linked List throws me a Null Pointer exception [duplicate]

血红的双手。 提交于 2020-01-11 14:33:52
问题 This question already has answers here : What is a NullPointerException, and how do I fix it? (12 answers) Closed 4 years ago . In a double ended Linked List, , I used another Link theLink which is copied through copy constructor to copy firstLink . But when I iterate through Linked List to insert from the back end , It throws me a Null Pointer Exception. package javaapplication2; import java.util.Arrays; public class DoubleEndedLinkList { Link firstLink; Link lastLink; int data; public

Performance on Java ArrayList vs LinkedList, pertaining to only Creation/Insertion and sorting

六眼飞鱼酱① 提交于 2020-01-11 10:50:09
问题 Consider the following code: import java.util.ArrayList; import java.util.Collections; import java.util.LinkedList; import java.util.List; public class testSortingSpeed { public static final int TOTAL_NUMBER = 10000000; public static void main(String[] args) { System.out.println("Creating ArrayList:"); List<Pair<Integer, Integer>> a = new ArrayList<>(); long start = System.currentTimeMillis(); for (int i = 0; i < TOTAL_NUMBER; i++) { Pair<Integer, Integer> p = new Pair<>( (int ) Math.random()

Why no ConcurrentModificationException in this situation with LinkedList iterator? [duplicate]

耗尽温柔 提交于 2020-01-11 05:37:10
问题 This question already has answers here : Why is a ConcurrentModificationException thrown and how to debug it (7 answers) Why isn't this code causing a ConcurrentModificationException? [duplicate] (4 answers) Closed 10 months ago . Consider the following code snippet: List<String> list = new LinkedList<>(); list.add("Hello"); list.add("My"); list.add("Son"); for (String s: list){ if (s.equals("My")) list.remove(s); System.out.printf("s=%s, list=%s\n",s,list.toString()); } This results in

C++ Templates - LinkedList

天大地大妈咪最大 提交于 2020-01-10 10:28:25
问题 EDIT -- Answered below, missed the angled braces. Thanks all. I have been attempting to write a rudimentary singly linked list, which I can use in other programs. I wish it to be able to work with built-in and user defined types, meaning it must be templated. Due to this my node must also be templated, as I do not know the information it is going to store. I have written a node class as follows - template <class T> class Node { T data; //the object information Node* next; //pointer to the

Deleting any node from a single linked list when only pointer to that node is given

时间秒杀一切 提交于 2020-01-09 09:09:56
问题 This is a question posed to me in an interview. "A single linked list is there in the memory. You have to delete a node. You need to write a function to delete that node, which takes only the address of the node to be deleted as input and nothing else(including head)" I gave the answer similar to the one answered in the below post -- Copying the contents of the next node into the node to be deleted and deleting the next one. Deleting a middle node from a single linked list when pointer to the

Exception in thread “main” java.util.NoSuchElementException: No line found - Using scanner input [duplicate]

橙三吉。 提交于 2020-01-09 02:38:05
问题 This question already has answers here : Java Scanner.nextLine() not waiting for input (2 answers) java.util.NoSuchElementException: No line found (6 answers) Closed 6 years ago . I am trying to delete a specific node from a linked list. I am trying to call my method removeNode, but it is giving me this error when I call it to get the user input. Any advice on how to fix this would be greatly appreciated! Exception in thread "main" java.util.NoSuchElementException: No line found at java.util

Circular Doubly Linked List - Segmentation fault: 11 [closed]

[亡魂溺海] 提交于 2020-01-07 03:57:14
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 3 years ago . I'm trying to implement a circular doubly linked list but I keep getting a segmentation fault: 11 error (I believe it's because of the add and delete functions). I have no idea whether my code is even close, but I can't get past this error to test it properly. This is the code I have that I believe is involved:

Changing Object initializer/constructor depending on method input

大憨熊 提交于 2020-01-07 03:42:10
问题 So I am trying to avoid using duplicate code. At the moment I have several lists which contain Strings; one list is called "images" and the other "videos" etc. These lists contain the properties of the content and they are in a linked list because that information was read from a text file. I am trying to go through these lists and create image/video objects to place in another object (later on). At the moment I have a method private void loadContent(List<String> contentType) inside of it how

User defined Functions and Linked Lists in C

瘦欲@ 提交于 2020-01-07 02:44:06
问题 I'm a bit stuck on how to make a user defined function that would printout the output. I also have to make a user defined function that will add up the data in each node and print out the total but it's not adding up correctly and the format is a little off as well. #include <stdio.h> #include <stdlib.h> #include <time.h> char printout(); int sum(); typedef struct node { int number; struct node*next; } node; char printout() { }; int sum() { int s,sum_all=0, node_sum=0; for(s=0;s=100;s++) {