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singly linked list in cpp

Zain Ali Siddiqui answered on September 12, 2022 Popularity 9/10 Helpfulness 1/10

answer singly linked list in cpp

related display singly in linked list in c++

singly linked list in cpp

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#include<iostream>
#include<string>
using namespace std;
class Node
{
public:
int data; //Data to be stored in the node
Node* next;	//Next pointer poiting the next node
Node(int val) //Constructor
{
	data = val;
	next = NULL; //It will always keep the next pointer of the last Node as NULL
}
};
void InsertAtHead(Node* &head,int val)
{
	Node* n= new Node(val); //Creates a new Node next to the head, Remember that every old Node is a head to a new Node.
	n->next=head; //This will make the new node to point towards the head.
	head=n; //We assigned the new node n as the head.
	
}

void InsertAtTail(Node* &head,int val)// passing head by reference so when we replace it by temp and do changes in temp the head doesnt get effected by the changes done to temp
{
	Node* n= new Node(val); //Creates a new Node next to the head, Remember that every old Node is a head to a new Node.
if(head==NULL ) //if head is NULL then we assign the already created Node n as head.
{
	head=n;
	return;
}
	Node* temp=head; //Temp is a Node datatype pointer varaible which stores the address of the head. 
	while(temp->next!=NULL)
	{
temp=temp->next; //It collects the next Node in the previous head.
}
//Now we are at the last Node 
temp->next=n; //It links the new Node with the link list by giving the Node to the last Node next and the new Node is already consisting NULL at its next.  
}

void display(Node* head) // passing by value because no more modification in print function
{
Node* temp=head; //Again assigned temp as pointer variable for head
while(temp!=NULL)
{
	cout<<temp->data<<"->"; //Printing the data in temp
	temp = temp->next; //Storing next Node in the temp
}
cout<<"NULL "<<endl;
 }

int main()
{
	Node* head = NULL;	//Assigening Null to head		
	InsertAtTail(head,1);
InsertAtTail(head,2);
InsertAtTail(head,3);
display(head);
InsertAtHead(head,4);
display(head); //Displays the 

}

Popularity 9/10 Helpfulness 1/10 Language cpp

Source: Grepper

Tags: c++ linked-list

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Contributed on Sep 16 2022

Zain Ali Siddiqui

0 Answers Avg Quality 2/10

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display singly in linked list in c++

Comment

display singly in c++

#include <iostream>
using namespace std;
struct Node {
   int data;
   struct Node *next;
};
struct Node* head = NULL;
void insert(int new_data) {
   struct Node* new_node = (struct Node*) malloc(sizeof(struct Node));
   new_node->data = new_data;
   new_node->next = head;
   head = new_node;
}
void display() {
   struct Node* ptr;
   ptr = head;
   while (ptr != NULL) {
      cout<< ptr->data <<" ";
      ptr = ptr->next;
   }
}
int main() {
   insert(3);
   insert(1);
   insert(7);
   insert(2);
   insert(9);
   cout<<"The linked list is: ";
   display();
   return 0;
}

Popularity 8/10 Helpfulness 3/10 Language cpp

Source: www.tutorialspoint.com

Tags: c++ display linked-list link

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Contributed on Jan 29 2023

Piteharp

0 Answers Avg Quality 2/10

singly linked list c++

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#include<iostream>
using namespace std;
class node{
    public:
    int data;
    node* next;
     void setData();
    void printData();
};

node* head =0;
void node::setData()
{
	int choice=1;
	head=new node();
    cout <<"Enter data : ";
    cin>>head->data;
    head->next=NULL;
    node* temp;
    temp=head;
    node* newnode;
     cout<<"Do you want to link another list if yes press 1 else press 2 : ";
    cin>>choice;
    while(choice==1)
    {
    newnode=new node();
    cout <<"\nEnter data : ";
	cin>>newnode->data;
    newnode->next=0;
    temp->next=newnode;
    temp=temp->next;
    cout<<"\nDo you want to link another list if yes press 1 else press 2 : ";
    cin>>choice;
    }
}

void node::printData ()
{
	cout<<"\n\nPrinting Linked List........\n\n";
    node* temp;
    temp=head;
    while(temp!=0)
    {
        cout<<temp->data<<" ";
        temp=temp->next;
    }
}
int main(){

    node obj;
    obj.setData();
    obj.printData();
}

Popularity 9/10 Helpfulness 2/10 Language cpp

Source: Grepper

Tags: c++

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Contributed on Sep 12 2022

talha shahid

0 Answers Avg Quality 2/10

what is singly linked list in c++

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Singly Linked list is a type of linear data structure that stores data of same
type and data is stored in linear fashion. Singly linked list contains a node 
and each node has two section one is data/value and second section contains
the memory address of next node . In this way nodes are connected to each other.

Popularity 9/10 Helpfulness 1/10 Language cpp

Source: Grepper

Tags: c++ linked-list linked-l

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Contributed on Feb 05 2023

Muhammad Rayyan

0 Answers Avg Quality 2/10

singly linked list in cpp

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