@ vivek sir
thanks

On Mon, May 3, 2010 at 9:03 PM, vivek bijlwan <viv...@gmail.com> wrote:

> copy the array(A) in a different array(B) to store the index info.(space
> O(n))
> sort(A)
> take each pair's sum ( complexity  O(n^2) ) and with that do a binary
> search for the 3rd element needed.(O(log(n))).
>
> Check for the indices in B.
>
> i believe it can be done in better time somehow.
>
> On Mon, May 3, 2010 at 6:48 PM, jalaj jaiswal 
> <jalaj.jaiswa...@gmail.com>wrote:
>
>>
>> given an array(unsorted) may contain negative numbers too
>> find the index of three numbers whose sum is closest to zero  in  O(N2log N) 
>> time and O(N) space.
>>
>> P.S -3 is more close to zero then -6 (number line ...)
>> --
>> With Regards,
>> Jalaj Jaiswal
>> +919026283397
>> B.TECH IT
>> IIIT ALLAHABAD
>>
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-- 
With Regards,
Jalaj Jaiswal
+919026283397
B.TECH IT
IIIT ALLAHABAD

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