@kunal patil ur right, i forgot to mention k=2.
refer http://www.exploringbinary.com/powers-of-two-in-the-josephus-problem/

surender


On Fri, Jul 22, 2011 at 7:21 PM, Kunal Patil <kp101...@gmail.com> wrote:

> @surender: I assume you want to give general solution to Josephus problem
> in which we shoot every kth person...In that case formula for pos must be:
> pos = ( x*k )%n + (k-1)
>
> In current context, k=2...thus the formula which you gave also holds
> true..but not when k != 2
>
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