A Linked List is a linear data structure where elements are arranged sequentially in a chain-like form. Each node contains two parts: data (the value of the element) and a pointer (address of the next node in the sequence). Unlike arrays, linked lists allow dynamic memory allocation, meaning their size can grow or shrink as needed. They are particularly useful for scenarios requiring frequent insertions and deletions, as these operations can be performed efficiently without the need to shift elements, unlike in arrays.
// Definition of Node#include<iostream>using namespace std;class Node{public:int data;Node* next;// constructor for initializationNode(int data){ this->data=data; this->next=NULL;}};int main(){Node *head=new Node(10); // Create head node with data = 10Node *second=new Node(20);// Create second node with data = 20head->next=second;// Linking head node with second node;cout<<head->data<<" "<<head->next->data; //10->20}