linked-list

问题 In the following blog there is a statement about the advantage of arrays over linked lists: Arrays have better cache locality that can make a pretty big difference in performance. What does that mean? I don't understand how cache locality can provide a huge performance benefit. 回答1: See my answer about spatial and temporal locality. In particular, arrays are contiguous memory blocks, so large chunks of them will be loaded into the cache upon first access. This makes it comparatively quick to

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 7 years ago . What's the best way to make a linked list in Java? 回答1: The obvious solution to developers familiar to Java is to use the LinkedList

问题 I use a lot of lists and arrays but I have yet to come across a scenario in which the array list couldn't be used just as easily as, if not easier than, the linked list. I was hoping someone could give me some examples of when the linked list is notably better. 回答1: Linked lists are preferable over arrays when: you need constant-time insertions/deletions from the list (such as in real-time computing where time predictability is absolutely critical) you don't know how many items will be in the

问题 I am trying to solve a practical coding question regarding linked lists where I am supposed to add the value in each respective node to form a new linked list. However I'm getting this error: Line 13: Char 20: runtime error: member access within null pointer of type 'struct ListNode' (solution.cpp) /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} * }; */ class Solution { public: ListNode* addTwoNumbers(ListNode

问题 For exercise I'm trying to implement a LinkedList in Scala. Main problem is about Null reference. But first some code: class Node(xkey: String, xnext: Option[Node], xinfo: Int) { val key: String = xkey; var next = xnext.getOrElse(None); var info: Int = xinfo; def this(xkey: String, xinfo: Int) { this(xkey, None, xinfo); } def this(xkey: String) { this(xkey, None, -1); } @Override override def toString: String = key + ":" + info } At this point, I'm already concerned about things. I declare

问题 This is a basic linked list that adds nodes and then prints them but for some reason it doesn't work correctly. From what I've tested it fails after printing the list it gets to the point where it prints the wage where it incorrectly prints the number and then terminates. #include<stdio.h> #include<stdlib.h> #include<string.h> typedef struct node_s { char job_title[25]; double hourly_wage; struct node_s *next; } node_t; void print_list(node_t *list); void add_node(node_t **head, char *title,

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 3 years ago . Im currently taking data structures and algorithms class and turns out it is heavily geared on the concepts of linked lists. Unfortunately my professor is not the best at explaining codes. I have googled a lot of sites trying to understand how to construct a linkedlist and to be

问题 I created a program in JAVA to add elements to a LinkedList and sort the elements while adding them. The swap technique I'm using in case of sorting is similar to that used while adding a node to the beginning of the LinkedList. The technique works in the latter case but fails to run in the former. I don't understand why this is not working. Below is my code for your reference. //Node class class Node{ int d; Node link; Node(int d){ this.d = d; link = null; } }//Node //LinkedList class class

问题 The segmentation fault occurs at the point with the comment. I think it has to do with the fact that I'm not initializing the head and tail Nodes. I've tried to initialize the to NULL as well and that didn't work. Unfortunately, I don't really know how to initialize them without using malloc. Any help would be great. Thanks. #include <stdio.h> #include <stdlib.h> #include <unistd.h> //the structure of the node in the linked list typedef struct Node{ int size; int status; struct Node* next;

问题 Program for priority queue, I have doubt in pointer, I am passing head to insert but its not modifying in insert, as you can see I am printing the head in insert and main in insert it is printing something non zero and in head it is zero #include<stdio.h> #include<stdlib.h> struct node{ int data; int priority; struct node* next; }; struct node* getnewnode(int data,int priority){ struct node* newnode=malloc(sizeof(struct node)); newnode->data=data; newnode->next=NULL; newnode->priority