Double linked list deletion at beginning is not working

#1

Deletion at beginning of double linked list not working

#2

after deleting element you have to update head as well
in the main

correct one is

Node* deleteAtBeg(Node* head)
{
    if(head==NULL)
    {
        cout<<"Not Possible of deletion empty list!!" ;

    }
    else
    {
        Node* temp=head;
        if(temp->prev==temp->next)//Incase of one new node
        {
            head=NULL;
            delete temp;
        }
        else
        {
            head=temp->next;
            head->prev=NULL;
            delete temp;

        }
    }

return head;
}

and in main()

head =deleteAtBeg(head);

these changes will work

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#3

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