-----Original Message-----
From: Weix, Rachel
Lynn
Sent: Wed 3/26/2003 4:30 PM
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: RE: Haskell
help!
Currently I'm having problems with type checking due to Haskell being a
strongly typed language. In order to return all optimal solutions, my
professor suggested I create a list of tuples if they all have the same score,
as indicated in my new maxSeq method (see attachment). However, this
means that the maxSeq method would return type [[(Char,Char)]].
Since maxSeq and getSeq must return the same type, I end up changing all my
signatures and end up with lots of problems. In my caseX methods, I
can't append [(Char)] to [[(Char,Char)]], and it also messes up trying to get
my score of each tuple, etc. I've been trying to solve the problem in
Scheme first but even then I'm having problems, and Scheme is only loosely
typed. Any suggestions? The format should be something like the
following (partial example):
[ [(-,M)] [(T,a)(h,s)(-,t)(e,e)(-,r)(-,s)]
[(-,s)(h,t)(e,e)(-,r)(-,s)]]].
Once I get back my list, I need to pair everything up in order to return
a list of optimal solutions. Taking the previous example, it would be
the following when paired up correctly:
[ [(-,M)(T,a)(h,s)(-,t)(e,e)(-,r)(-,s)],
[(-,M)(T,a)(-,s)(h,t)(e,e)(-,r)(-,s)] ]
From there, I find which sequence has the maximum score. I then
walk through the list again, making a list of all the sequences that have that
score. These two steps seem fairly trivial, it's all the above stuff
which I'm struggling on.
Rachel
-----Original Message-----
From: Marc Ziegert
[mailto:[EMAIL PROTECTED]
Sent: Tue 3/25/2003 3:13 PM
To:
Weix, Rachel Lynn
Cc:
Subject: Re: Haskell
help!
maxSeq had one mistake: || instead of &&
i
will think about the problem itself, before rewriting all.
this is
the file a little bit more in haskell style.
Am Dienstag, 25.
März 2003 20:16 schrieben Sie:
> I found my two mistakes, plus I fixed
the method my Professor said was
> incorrect. Now I just have to
be able to find ALL optimal solutions,
> instead of just one.
Hooray!
>
>
Rachel
