C++ Linked List Exercises: Create and display linked list

Last update on April 14 2025 12:42:11 (UTC/GMT +8 hours)

1. Create and Display Singly Linked List

Write a C++ program to create and display a Singly Linked List.

Visualization:

Test Data:
The list contains the data entered:
11 9 7 5 3 1

Sample Solution:

C++ Code:

#include <iostream> // Including input-output stream header file

using namespace std; // Using standard namespace

// Declare node structure
struct Node{
    int num;
    Node *next;
};

// Starting (Head) node
struct Node *head=NULL;

// Function to insert node at the start
void insert_Node(int n){
    struct Node *new_node=new Node; // Creating a new node
    new_node->num=n; // Assigning data to the new node
    new_node->next=head; // Pointing the new node to the current head
    head=new_node; // Making the new node as the head
}

// Function to display all nodes
void display_all_nodes(){
    cout<<"The list contains the data entered:\n"; // Displaying a message
    struct Node *temp = head; // Temporary node to traverse the list
    while(temp!=NULL){ // Loop to iterate through the list
        cout<<temp->num<<" "; // Displaying the data in the current node
        temp=temp->next; // Moving to the next node
    }
    cout<<endl; // Displaying newline after printing all nodes
}

int main(){
    insert_Node(1); // Inserting a node with value 1
    insert_Node(3); // Inserting a node with value 3
    insert_Node(5); // Inserting a node with value 5
    insert_Node(7); // Inserting a node with value 7
    insert_Node(9); // Inserting a node with value 9
    insert_Node(11); // Inserting a node with value 11
    display_all_nodes(); // Displaying all nodes in the list
    return 0; // Returning from the main function
}

Sample Output:

The list contains the data entered:
11 9 7 5 3 1 

Flowchart:

For more Practice: Solve these Related Problems:

• Develop a C++ program to build a singly linked list from user input and display the list using iterative traversal.
• Write a C++ program that creates a singly linked list with predefined values and prints each node along with its memory address.
• Design a C++ program to construct a singly linked list and display the list in a tabular format, marking the head and tail distinctly.
• Implement a C++ program to create a singly linked list using dynamic memory allocation and then display its elements with pointer arithmetic.

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