Link list Inserting a node at the beginning - C++ Programming Language

Link list Inserting a node at the beginning - C++ Programming Language

Instructor-svgAl-Mamun Sarkar
Apr 16 , 2020

Link list Inserting a node at the beginning - C++ Programming Language. The following c++ code shows how to insert a node at the beginning of the linked list.

 

Code:

#include<iostream>
using namespace std;

struct Node
{
    int data;
    Node* next;
};

Node *head;

// Ia an item to Link list
void Insert(int x)
{
    Node *temp = new Node();
    temp->data = x;
    temp->next = head;
    head = temp;

}

// Print link list
void Print()
{
    Node *temp = head;
    cout << "List is : ";
    while (temp != NULL) {
        cout << temp->data << " ";
        temp = temp->next;
    }
    cout << endl;
}


int main()
{
    head = NULL;
    cout << "How many numbers : ";
    int n, x;

    cin >> n;

    for (int i=0; i<n; i++) {
        cout << "Enter the number " << endl;
        cin >> x;
        Insert(x);
        Print();
    }

    return 0;
}

 

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