[gecode-users] IntVarArray

[Christian Schulte]

Element works with arrays of integers and the index variable are the
variables toto1 and toto2. Please read carefully.

 

Christian

 

--

Christian Schulte, www.ict.kth.se/~cschulte/

 

 

From: Alexis Cothenet [mailto:alexis.cothenet at gmail.com] 
Sent: Monday, March 12, 2012 10:17 AM
To: cschulte at kth.se
Cc: users at gecode.org
Subject: Re: [gecode-users] IntVarArray

 

Hi,

Thank you for your answer.
I have seen this constraint but i don't understand how it could help me
since, in my example, Array is not a variable array.
If i understand well, what you suggested me if to use something like
element (Array, toto1, glob[0])
element (Array, toto2, glob[1])
distinct (glob);

But in my case Array is a simple relationship (a mapping) between values...
Alexis



2012/3/12 Christian Schulte <cschulte at kth.se>

The constraint you are looking for is called "element" in Gecode
(implementing arrays access with variables).

 

For a general idea on how to model with Gecode, please check the
documentation.

 

Christian

 

--

Christian Schulte, www.ict.kth.se/~cschulte/
<http://www.ict.kth.se/%7Ecschulte/> 

 

 

From: users-bounces at gecode.org [mailto:users-bounces at gecode.org] On Behalf
Of Alexis Cothenet
Sent: Monday, March 12, 2012 9:49 AM
To: users at gecode.org
Subject: [gecode-users] IntVarArray

 

Hi all,

I'm trying to model something with Gecode:

I'm used with ILOG to add constraints like this:

I have 2 variables for example :
IntVar toto1 ([0,1,2])
IntVar toto2 ([0,2]).


I have a relationship with the preceding domain values :
Array [0] = 8
Array [1] = 9
Array [2] = 8

I have an intVarArray:
IntVarArray glob;
glob << Array [toto1] (domain = [8,9])
glob << Array [toto2] (domain = [8])

And add constraint:
distinct (glob);

So that it constrains glob[0] ->[9] and so it constrains toto1->[1]

Could you explain me how i could model it with Gecode ? 

Thank you.
Best regards,
Alexis

 

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