Re: [algogeeks] Re: BST to DLL spirally

2011-09-27 Thread raju
using two stacks or using a queue and a stack ...  these are obvious
solutions ..

Just want to know if there exists an iterative way without extra space !!!
I should've mentioned these details earlier .. sorry for that !!

~raju

On Tue, Sep 27, 2011 at 10:09 PM, geeks  wrote:

> just use the two stacks here and do the level order traversal in spiral
> order and keep down prev pointer each time and just maintain the doubly
> linked i think it is pretty gud hint :)
>
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Re: [algogeeks] Re: BST to DLL spirally

2011-09-27 Thread Sini Mathew
use one Queue instead of stacks.
this was one of amazon written question for me

Sini

On Tue, Sep 27, 2011 at 10:09 PM, geeks  wrote:

> just use the two stacks here and do the level order traversal in spiral
> order and keep down prev pointer each time and just maintain the doubly
> linked i think it is pretty gud hint :)
>
> --
> You received this message because you are subscribed to the Google Groups
> "Algorithm Geeks" group.
> To view this discussion on the web visit
> https://groups.google.com/d/msg/algogeeks/-/iHbjfHkgHl4J.
>
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[algogeeks] Re: BST to DLL spirally

2011-09-27 Thread geeks
just use the two stacks here and do the level order traversal in spiral 
order and keep down prev pointer each time and just maintain the doubly 
linked i think it is pretty gud hint :)

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