can't we use idea of reservoir sampling here ?
On Tue, Oct 8, 2013 at 8:18 PM, Don wrote:
> Provide a function which returns a value randomly and uniformly selected
> from the range 0..N-1 excluding values in the array a[S] containing sorted
> values in the same range. A rejection algorithm wou
Provide a function which returns a value randomly and uniformly selected
from the range 0..N-1 excluding values in the array a[S] containing sorted
values in the same range. A rejection algorithm would work well enough if S
is much smaller than N, but what if N is large and S is slightly smaller
