I have been given the framework to implement a doubly linked list. I am getting stumped on the PushFront() method. The method should add the provided element to the front of the linked list and it should return the address to the new head node. I am confused about how to access the current head ..
Category : linked-list
The question is to Segregate even and odd nodes in a Link List, EXAMPLE:17 -> 15 -> 8 -> 9 -> 2 -> 4 -> 6 -> NULL should become 8 2 4 6 17 15 9. You do not need to read input or print anything. Your task is to complete the function divide() ..
ListNode* reverse(ListNode *head2) { ListNode* curr=head2,*prev=NULL,*next=NULL; while(curr) { next=curr->next; curr->next=prev; prev=curr; curr=next; } return prev; } bool isPalindrome(ListNode* head) { ListNode* newhead=reverse(head); while(newhead!=NULL) { if(head->val!=newhead->val) return false; head=head->next; newhead=newhead->next; } return true; } Source: Windows Que..
I’ve read alot of the provided linked list segmentation faults on this site and attempted fixes like checking nullptrs before each use but I still can’t get this to work. This is the link to the program on replit. The program gives the intended result on test cases (using both input and command) 21 & ..
Currently creating a linked list and i’m having trouble on moving a node to a certain position where the order is not destroyed but simply just move the specified node to the specified pos so for example the list contains (1,2,3,4) and i want to move 1 to pos 3 it will go (2,3,1,4) i’m ..
So I need to do this assignment without an array or list or sth, so i think using linked list would be the best. But I got the memory leak problem late. Sorry for the inconvenience for my long code, I don’t know whether my deletion got a problem or using this kind of structure ..
So I am new to data structures and I am trying out linked lists. I have made a class Node with an int key, int del and Node* next. When I try to delete nodes by giving delete function (Del) a key, it works perfectly for head node or any node existing in the list ..
I was trying to add 3 polynomial equations through linked lists and managed to create the following program in C++ which is working for some of the cases, but is not working for all of them. The problem is, I am not able to figure out for which testcases the program is giving wrong output(as ..
I have a class with an f_next field that looks like so: class process { public: typedef std::shared_ptr<process> pointer_t; typedef std::list<pointer_t> list_t; void add_next_process(pointer_t p); void wait(); private: list_t f_next = list_t(); }; The add_next_process() simply appends p to f_next: f_next.push_back(p); As a result, the wait() has to gather all the processes and wait for ..
#include <iostream> #include <stdlib.h> using namespace std; struct Node { int data; struct Node *next; }; void linked_trav(struct Node *ptr1) { while (ptr1 != NULL) { cout << ptr1->data << endl; ptr1 = ptr1->next; } } struct Node *insert_at_first(struct Node *head, int data) { struct Node *ptr = (struct Node *)malloc(sizeof(struct Node)); ptr->next = head; ..
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