linked-list

问题 So I'm learning Linked Lists in Python but having trouble inserting a node between my nodes. Let me post my code below and explain what I've done and where I believe the problem is happening. class Node(object): def __init__(self, data): self.data = data self.nextNode = None ''' def __str__(self): return str(self.data) ''' class LinkedList(object): def __init__(self): self.head = None self.tail = None # Insert inbetween def insert_in_between(self, data, prev_data): print("<<< INSERT INBETWEEN

问题 I'm learning how to make a linked list in c#. I have the below code which is not working for me. I just want to add the nodes in the main as i have below then iterate over all nodes that will print to the console. using System; class node { public object data; public node next; public node() { data = null; next = null; } public node(object o) { data = o; next = null; } public node(object data, node next) { this.data = data; this.next = next; } } class linkedList { private node headNode;

问题 I am trying to implement the linked list data structure using java, it works fine for insertion or removing first elements but fails to remove the last element via using the removeLast() method. My Linked List Node class: public class LLNode { String value; LLNode next; public LLNode(String value){ this.value = value; this.next = null; } } My Linked List class that holds a head Node: public class LL { LLNode head; public LL(){ this.head = null; } public void insertHead(LLNode input){ input

问题 Experimenting with this question/answer https://stackoverflow.com/a/50649120/225186 I produced what seems to be a legal recursive self referential class that implements a circular list: struct node{ int val; node const& next; }; int main(){ node s{3, {4, s}}; assert(s.val == 3); assert(s.next.val == 4); assert(&s.next.next == &s); assert(s.next.next.val == 3); } However, when I try put this as a member of a larger class I get a warning from the compiler and the behavior changes. struct A{

问题 From Understanding the Linux Kernel : the Linux kernel defines the list_head data structure, whose only fields next and prev represent the forward and back pointers of a generic doubly linked list element, respectively. It is important to note, however, that the pointers in a list_head field store the addresses of other list_head fields rather than the addresses of the whole data structures in which the list_head structure is included ; see Figure 3-3 (a). Why do the pointers in a list_head

问题 From Understanding the Linux Kernel : the Linux kernel defines the list_head data structure, whose only fields next and prev represent the forward and back pointers of a generic doubly linked list element, respectively. It is important to note, however, that the pointers in a list_head field store the addresses of other list_head fields rather than the addresses of the whole data structures in which the list_head structure is included ; see Figure 3-3 (a). Why do the pointers in a list_head

问题 A friend of mine wants me to convert his code into a doubly linked list, though I'm not familiar with it at all. I've looked up doubly linked lists but I can't tell by his code what to do with it. I'm not a master programmer. Do you have any suggestions? import java.util.Collection; import java.util.List; class SinglyLinkedList<E> implements List<E> { private class SinglyLinkedListNode<T> { T data; SinglyLinkedListNode<T> next; public SinglyLinkedListNode() { this(null, null); } public

问题 I have been trying to write a shortest path algorithm, dijkstras algorithm, finding the shortest path for the first two vertices works just fine. I run into the problem while trying to clear a linked list and a priority queue. class llNode { public: int id; int source; int weight; llNode* next; llNode(int key, int distance, int from) { id=key; weight=distance; source=from; next = NULL; } }; class lList { private: llNode* root; llNode* end; void clearAll(llNode* toClear); public: lList() {

问题 Here's my implementation of a addition of two polynomials using a linked List. For example if I want to add 3x^2+5^x+3 and 4x^3+5x+2 first I check if there are similar exponents in the two polynomials and if so I add their coefficients and I append the exponents to a string. After adding similar exponents then using the string I add the remaining parts in both polynomials to the final result. public class Node2{ int coef; int exp; Node2 next; Node2(int c,int e,Node2 n){ coef=c; exp=e; next=n;

问题 I am learning about linked lists and how to create them in C with structs and pointers. I have an example below. From my understanding the called push() passes the beginning memory location of our struct where the head node lies as an argument. The parameter of our push() function takes a struct node as a pointer to pointer so it is passed as a reference, not an actual copy. So the first pointer of our struct node** headref is just a pointer to the memory location of our head node and the