My proposed solution was not correct.  You need a DP because the
problem is not matroid as I thought.

But for this problem 14 seems correct to me.  I can't see how you can
get 8.  You need to decrement 14, 15, 16 and 13 to 11.  This is a
total of 14 decrements.  What am I missing?

On Aug 28, 5:41 am, gaurav singhal <singhal08gau...@gmail.com> wrote:
> @ Gene :
>
> Output for
>
> int a[] = { 14, 15, 16, 13, 11, 18 };
>
> is coming out to be 14
>
> whereas minimum cost will be : 8

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