linked-list

问题 i have a view that is using linked server to retrieve data from a remote server in SQL Server. On each time viewing the view, the results returned are vary. For example, 1st time execution may return 100 rows of records but on 2nd time of execution, rows returned are 120 rows. Any ideas what is the cause? 回答1: I have witnessed odd linked-server results that are a product of non-determinism written into the SQL itself, I.e. a TOP query written without an ORDER BY clause. This problem, for

问题 I have a linked list I'm given and I need to find the first value in the list via a getFirst method.I need to display an error message and quit the program if the value is null. The linked list is already given to me link so: class MyLinkedList { private class Node // inner class { private Node link; private int x; } //---------------------------------- private Node first = null; // initial value is null //---------------------------------- public void addFirst(int d) { Node newNode = new

问题 I am trying to a create a linked list. When I add to the list in the same function that I create the object in, it works. Definitions: typedef struct student { int num; char* name; } student; typedef struct container { student* data; struct container* next; } container ; All the objects I use are initialized like this: student stu1; stu1.num = 6; stu1.name = "grefagf"; front = createContainer(&stu1); back = front; student stu2; stu2.num = 3; stu2.name = "dsghjyreawre"; student stu3; stu3.num

问题 I'm very new to pointers and linked lists but I'm trying to write a simple program that reads in data from a text file into a linked list. I'm having trouble with the input function. It looks like this: DVDNode* CreateList(string fileName) { ifstream inFile; inFile.open(fileName.c_str()); DVDNode* head = NULL; DVDNode* dvdPtr; dvdPtr = new DVDNode; while(inFile && dvdPtr != NULL) { getline(inFile, dvdPtr -> title); getline(inFile, dvdPtr -> leadActor); getline(inFile, dvdPtr ->

问题 void sortlist() { struct node *a; struct node *temp=head; struct node *temp1=head->next; while(temp!=NULL) { while(temp1->next!=NULL) { if(temp->data > temp1->data) { a->data=temp->data; temp->data=temp1->data; temp1->data=a->data; } else { temp1=temp1->next; } } temp=temp->next; } } //I am new to data structures.i am encountering some problem here while trying to sort elements of linked list.list does not get sorted.any help is greatly appreciated. 回答1: a is an uninitialised pointer so the

问题 The dummyNode declaration variable was working well until i wrote iterator class as nested, now it gives me an error invalid use of non-static data member, 'linkedList::dummyNode' c++, if i removed iterator class it works well template class linkedList { private: listNode<T> * head, *tail; listNode<T> * dummyNode = new listNode<T>; int sz = 0; public: class iterator { public: iterator() { itrNode = head; } void operator ++ () { try{ if(itrNode == dummyNode) throw "Sorry this is the end of the

问题 I am trying to create a linked list from a binary tree. The thing is, is it possible to use a simple linked list instead of the doubly linked list? I tried this: typedef struct arvbin* ABin; typedef struct arvbin { int value; ABin right; ABin left; } arvb; typedef struct slist { int value; struct slist* next; } *SList; void preorder(ABin tree, SList *l) { if(tree) { (*l)->value = tree->value; (*l)->next = (SList) malloc(sizeof(struct slist)); l = &((*l)->next); printf("tese\n"); preorder(tree

问题 I've been doing this homework assignment and I feel like I've tried anything that I could do, but this is just so frustrating. Basically this program is supposed to simulate the admin console of someone who monitors computers labs. There are 3 options at the main menu, and I've got all of them to work except for the "logoff" function. The big issue with this program is that the labs are supposed to be arrays and the ID Numbers that are located at a particular computer station are supposed to

问题 I have been at this literally all day. I can create linked lists no problem and display/delete the data in them. My problem is though that I am not sure how to create a linked list of flights with each node including a reference to a linked list of passengers? This is an assignment in my advanced Algorithms class. I am drawing a blank here? 回答1: Create an object that holds a Passenger: public class Passenger { private String name; private int id; } Then give Flight a List of Passengers:

问题 I just created an implementation of LinkedList(just for self-education purpose.). I made it run, but the output result is kind of weird... Here is the code: #include "stdafx.h" #include <iostream> #include <stdio.h> using namespace std; template <class T> class Node{ T datum; Node<T> *_next; public: Node(T datum) { this->datum = datum; _next = NULL; } void setNext(Node* next) { _next = next; } Node* getNext() { return _next; } T getDatum() { return datum; } }; template <class T> class