Re: [algogeeks] find out the mid point of a single linked list

2010-09-28 Thread Prashant Kulkarni
maintain two pointer

1) slow pointer : it will point to next node for each iteration (ie
node=node->next)
2) fast pointer : it will point to two ahead node for each iteration ( ie
node=node->next->next)

when fast pointer reaches the end of linked list (NULL), slow pionter will
point to middle of the linked list

-- Prashant Kulkarni




On Tue, Sep 28, 2010 at 10:54 PM, Divesh Dixit <
dixit.coolfrog.div...@gmail.com> wrote:

> Given a singly-linked, find out (just give the basic logic) the mid
> point of a single linked list in a single parse of the list. Assume
> the program would be loaded in read-only memory so no manipulation of
> the list is allowed.
>
> --
> You received this message because you are subscribed to the Google Groups
> "Algorithm Geeks" group.
> To post to this group, send email to algoge...@googlegroups.com.
> To unsubscribe from this group, send email to
> algogeeks+unsubscr...@googlegroups.com
> .
> For more options, visit this group at
> http://groups.google.com/group/algogeeks?hl=en.
>
>

-- 
You received this message because you are subscribed to the Google Groups 
"Algorithm Geeks" group.
To post to this group, send email to algoge...@googlegroups.com.
To unsubscribe from this group, send email to 
algogeeks+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/algogeeks?hl=en.



Re: [algogeeks] find out the mid point of a single linked list

2010-09-28 Thread Nick Singh
Take 2 pointers at the beginning and move 1 pointer by 1 step and 2nd by 2
steps until end of listafter that position of 1st pointer will be the
mid point of a singly list...

On Wed, Sep 29, 2010 at 1:24 AM, Divesh Dixit <
dixit.coolfrog.div...@gmail.com> wrote:

> Given a singly-linked, find out (just give the basic logic) the mid
> point of a single linked list in a single parse of the list. Assume
> the program would be loaded in read-only memory so no manipulation of
> the list is allowed.
>
> --
> You received this message because you are subscribed to the Google Groups
> "Algorithm Geeks" group.
> To post to this group, send email to algoge...@googlegroups.com.
> To unsubscribe from this group, send email to
> algogeeks+unsubscr...@googlegroups.com
> .
> For more options, visit this group at
> http://groups.google.com/group/algogeeks?hl=en.
>
>

-- 
You received this message because you are subscribed to the Google Groups 
"Algorithm Geeks" group.
To post to this group, send email to algoge...@googlegroups.com.
To unsubscribe from this group, send email to 
algogeeks+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/algogeeks?hl=en.



[algogeeks] find out the mid point of a single linked list

2010-09-28 Thread Divesh Dixit
Given a singly-linked, find out (just give the basic logic) the mid
point of a single linked list in a single parse of the list. Assume
the program would be loaded in read-only memory so no manipulation of
the list is allowed.

-- 
You received this message because you are subscribed to the Google Groups 
"Algorithm Geeks" group.
To post to this group, send email to algoge...@googlegroups.com.
To unsubscribe from this group, send email to 
algogeeks+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/algogeeks?hl=en.