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Linked List reverese program
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Answer / dsr
import java.util.Collections;
import java.util.LinkedList;
public class LikedListDemo {
public static void main(String[] args) {
LinkedList list = new LinkedList();
list.add("Raju");
list.add("Gopal");
list.add("Senthil");
list.add("nagesh");
System.out.println("list size....."+list.size());
System.out.println("list ....."+list);
Collections.reverse(list);
System.out.println("revese list ....."+list);
}
}
| Is This Answer Correct ? | 8 Yes | 3 No |
Answer / kaustubh
I'll give the algo here.You may write it in a programming
language of your choice.
Iterative Algo:
node *Reverse(node *head)
{
node *p,*q,*r;
p=head;q=r=NULL;
while(p!=NULL)
{
q=p;
p=p->next;
q->next=r;
r=q;
}
head=q;
return head;
}
Recursive algo:
From main call: Reverse(node *head,NULL)
reverse(node *p,node *q)
{
if(p->next!=NULL)
reverse(p->next,p)
else
{
p->next=q;
return
}
}
| Is This Answer Correct ? | 2 Yes | 0 No |
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