@ Wladimir

How do you get

(1,3)
(2,1)
(3,6)
(4,5)
(5,2)
(6,3)

B'cos once you sort the array you lose its original index.


On Tue, Dec 28, 2010 at 5:50 AM, Wladimir Tavares <wladimir...@gmail.com>wrote:

> Consider your example:
>
>
> One is
>
> 2 5 1 6 4 3
>
> other is
>
> 1 2 3 4 5 6.
>
>
> After sorted the first array and keep the position you will have:
>
>
> (1,3)
> (2,1)
> (3,6)
> (4,5)
> (5,2)
> (6,3)
>
> O(n log n)
>
> for each value of the second array do  a binary search in the first array
> and discover the position
>
> O (log n)
>
> O (nlgn + lgn)
>
>
>
> On Tue, Dec 28, 2010 at 8:48 AM, Bhoopendra Singh <bhoopendra...@gmail.com
> > wrote:
>
>> Is second array sorted?
>>
>>
>> On Tue, Dec 28, 2010 at 1:57 PM, juver++ <avpostni...@gmail.com> wrote:
>>
>>> Sort first array preserving the initial position of the elements.
>>>
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