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Doubly Linked List.cpp
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#include<iostream>
using namespace std;
class node
{
public:
int data;
node* next;
node* prev;
};
class doubleelinkedlist
{
node* head;
public:
doubleelinkedlist()
{
head = NULL;
}
node* GetNewNode(int x)
{
node* newnode = new node;
newnode->data = x;
newnode->prev = NULL;
newnode->next = NULL;
return newnode;
}
void insertAtBeggining(int x)
{
node* temp = GetNewNode(x);
if (head == NULL)
{
head = temp;
return;
}
head->prev = temp;
temp->next = head;
head = temp;
}
void printForward()
{
node* temp= head;
while (temp != NULL)
{
cout << temp->data << " ";
temp = temp->next;
}
}
//REVERSE PRINT
void printREeverse()
{
node* temp = head;
if (temp == NULL)
return;
while (temp->next != NULL)
{
temp = temp->next;
}
while (temp != NULL)
{
cout << temp->data << " ";
temp = temp->prev;
}
}
/*void deleteNode(int ele)
{
node* temp = head;
for (int i = 0; i < ele - 1; i++)
{
temp = temp->next;
}
temp->prev = temp->next;
delete temp;
}*/
};
int main()
{
doubleelinkedlist d;
d.insertAtBeggining(5);
d.insertAtBeggining(8);
d.insertAtBeggining(10);
d.printForward();
cout << endl;
d.printREeverse();
cout << endl;
d.deleteNode(2);
d.printForward();
cout << endl;
system("pause");
return 0;
}