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DLL_deletionAtEnd.c
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DLL_deletionAtEnd.c
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#include<stdlib.h>
#include<stdio.h>
struct node
{
struct node *prev;
int data;
struct node *next;
};
//Traverse a doubly linked list
void TraverseDoubly(struct node *head)
{
struct node *p = head;
while(p!=NULL)
{
printf("\nElement is: %d",p->data);
p = p->next;
}
}
struct node *deletionAtEnd(struct node *head)
{
struct node *p=head;
struct node *p2;
while(p->next!=NULL)
{
p = p->next;
}
p2=p->prev;
p2->next=NULL;
free(p);
return head;
}
int main()
{
struct node *head = malloc(sizeof(struct node));
struct node *second = malloc(sizeof(struct node));
struct node *third = malloc(sizeof(struct node));
struct node *fourth = malloc(sizeof(struct node));
head->prev=NULL;
head->data=10;
head->next=second;
second->prev=head;
second->data=20;
second->next=third;
third->prev=second;
third->data=30;
third->next=fourth;
fourth->prev=third;
fourth->data=40;
fourth->next=NULL;
head = deletionAtEnd(head);
TraverseDoubly(head);
return 0;
}