[Haskell-cafe] Implementing parental using blood type
fa-ml at ariis.it
Sun Jun 29 05:05:20 UTC 2014
On Sat, Jun 28, 2014 at 11:16:31PM -0300, Rafael Almeida wrote:
> I'm trying to practice my Haskell. So I had the idea of making a program
> which, given a mother's and a child blood type, it can determine whether a
> certain father is possible or not.
> Please take a look on this gist with my implementation:
> Would you care to comment on it? It looks a bit cumbersome to my eyes. I'm
> trying to find the most intuitive and elegant way of do it. I'm not so much
> worried with performance.
Since your 'main' function returns a Bool (possible/impossible), a simpler
way to approach the problem is to calculate the potential blood-type of child
C given parents A and B and then check the actual blood-type passed against
this list (I attach a .hs with such solution).
The 'cumbersome' part is the |Genes -> BloodType| conversion (and vice-versa);
you can calculate the inverse instead of typing it out, but it will still be
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