check out :  
http://groups.google.co.in/group/programming-challenges/browse_thread/thread/f9e5436fbc6dbc56?hl=en
#


On 11/7/07, anvera <[EMAIL PROTECTED]> wrote:
>
>
> I have not developed entirely the idea, but I am sure it works.
> Just write the corresponding linear system. You will have n unknowns
> and n(n-1)/2 equations. Provided that the system is consistent you can
> find a solution by Gaussian elimination.
> For the complexity, you can do it in less than n^3/3 +O(n^2)
> operations, because it is simpler than just inverting a nxn matrix.
> Inverting the matrix can let you solve the problem for many instances.
> It would be interesting to exploit the special structure of this
> matrix in order to speed up the computation. Please post if you find
> such an improvement.
>
> Best Regards,
>
> Antonio
>
> On Nov 7, 5:16 pm, Andrey <[EMAIL PROTECTED]> wrote:
> > Any set of n integers form n(n - 1)/2 sums by adding every possible
> > pair.
> > The task is to find the n integers given the set of sums.
> >
> > Any ideas?
> >
> > I've found out the solution but I doubt it the best one...
>
>
> >
>


-- 
Ciao,
Ajinkya

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