[racket] Knuth's algorithm S

Manfred Lotz wrote at 03/09/2014 12:34 PM:
[...]
> I had a look at the implementations of Knuth's algorithm S at rosetta
> code: http://rosettacode.org/wiki/Knuth's_algorithm_S#Racket
>    
[...]

Without profiling or trying to understand the code:
* Is all that vector copying really necessary?
* Are all the make-vector calls necessary?
* Does that hash need to be a hash, or can it be a vector?

Neil V.