linked-list

问题 I have been learning about linked lists, and implementing one in python has been easier than I expected. However, when it has come to solving the problem of "swapping pairs in a linked list", for some reason my second link disappears during the swap. I've been staring at this for ages and trying different solutions I found online. They all get the same result which suggests my problem is with the implementation of the list itself. Or I've made a silly error somewhere that I can't see! I would

问题 I'm trying to learn Linked Lists in python I've been given Linked List class and asked to create append method. Here is the code provided. class Node: def __init__(self, item, next): self.item = item self.next = next class LinkedList: def __init__(self): self.head = None def add(self, item): self.head = Node(item, self.head) def remove(self): if self.is_empty(): return None else: item = self.head.item self.head = self.head.next return item def is_empty(self): return self.head == None def _

问题 In my Java application both of the following will compile and run, and produce the desired result. //"Rotate" the list items one place to the left. myLinkedList.addLast(myLinkedList.removeFirst()); And a "rotation" in the opposite direction //"Rotate" the list items one place to the right. myLinkedList.addFirst(myLinkedList.removeLast()); Both "rotations" only require one line of code each, but I'm wondering if this is the right way to go about it? Are there any pitfalls in this approach? Is

问题 The Dart core API has two classes that implement the Queue<E> interface, DoubleLinkedQueue<E> and ListQueue<E>. The documentation of both classes is almost identical, the only difference that is explicitly mentioned is the following note in the ListQueue<E> documentation: Operations like removeAll and removeWhere are very inefficient. If those are needed, use a DoubleLinkedQueue instead. What is the actual difference between them implementation-wise and when should which implementation be

问题 The Dart core API has two classes that implement the Queue<E> interface, DoubleLinkedQueue<E> and ListQueue<E>. The documentation of both classes is almost identical, the only difference that is explicitly mentioned is the following note in the ListQueue<E> documentation: Operations like removeAll and removeWhere are very inefficient. If those are needed, use a DoubleLinkedQueue instead. What is the actual difference between them implementation-wise and when should which implementation be

问题 The Dart core API has two classes that implement the Queue<E> interface, DoubleLinkedQueue<E> and ListQueue<E>. The documentation of both classes is almost identical, the only difference that is explicitly mentioned is the following note in the ListQueue<E> documentation: Operations like removeAll and removeWhere are very inefficient. If those are needed, use a DoubleLinkedQueue instead. What is the actual difference between them implementation-wise and when should which implementation be

问题 I am trying to sort a Linked list, but not able to do it. Below is my code. Can anyone help me. I have seen some programs too, which sort linked list and their approach is also like this only. #include <stdio.h> #include <stdlib.h> struct node { int data; struct node *next; }; int push(struct node **h, int x) { struct node *temp = (struct node*)malloc(sizeof(struct node)); temp->data = x; temp->next = *h; *h = temp; return 0; } void print(struct node *head) { struct node *temp = head; while

问题 I am trying to sort a Linked list, but not able to do it. Below is my code. Can anyone help me. I have seen some programs too, which sort linked list and their approach is also like this only. #include <stdio.h> #include <stdlib.h> struct node { int data; struct node *next; }; int push(struct node **h, int x) { struct node *temp = (struct node*)malloc(sizeof(struct node)); temp->data = x; temp->next = *h; *h = temp; return 0; } void print(struct node *head) { struct node *temp = head; while

问题 If p and temp are two pointer variables where p contains NULL and temp points to some memory address. Now suppose p = temp; That means now p points to same address as where temp is pointing. Does that mean two pointer variables p and temp are now pointing to the same memory address? 回答1: Yes, two pointer variables can point to the same object: Pointers are variables whose value is the address of a C object, or the null pointer. multiple pointers can point to the same object: char *p, *q; p =

问题 If p and temp are two pointer variables where p contains NULL and temp points to some memory address. Now suppose p = temp; That means now p points to same address as where temp is pointing. Does that mean two pointer variables p and temp are now pointing to the same memory address? 回答1: Yes, two pointer variables can point to the same object: Pointers are variables whose value is the address of a C object, or the null pointer. multiple pointers can point to the same object: char *p, *q; p =