[SCIP] Pleaseeee help me

[Jakob Witzig]

Hi Berna,

the link for the lp file format was wrong: 
http://lpsolve.sourceforge.net/5.5/CPLEX-format.htm

Best,
Jakob

On 28.11.2015 13:14, Jakob Witzig wrote:
> Hi Berna,
>
> have you already installed SCIP? If not, a tutorial can be found here: 
> http://scip.zib.de/doc/html/MAKE.php
>
> Afterwards, you have to formulate your problem in a file format SCIP 
> can read. A list of all readable file formats can be found here: 
> http://scip.zib.de/doc/html/group__FILEREADERS.php
>
> In your case it will be the easiest way to use the lp format. You can 
> read the description given by CPLEX: 
> http://scip.zib.de/doc/html/group__FILEREADERS.php. Since your problem 
> is very small you can use write the lp file by hand. If want to solve 
> larger problem you should use a modeling language, e.g., ZIMPL: 
> http://zimpl.zib.de/
>
> After you have your lp file (or another file that can read by SCIP) 
> you should use the interactive shell: 
> http://scip.zib.de/doc/html/SHELL.php
>
> Please keep in mind, the mailing list and the community is not here to 
> do your homework. Before you write a mail please use the search 
> function: 
> https://www.google.de/?gfe_rd=cr&ei=ZZhZVrXaJ8OK8Qf0o4awAw&gws_rd=ssl#q=site:listserv.zib.de%2Fpipermail%2Fscip 
> maybe your problem was already discussed and solved.
> If you would like to discuss an approach, found a bug or you would 
> like to know whether your ideas can be realized with SCIP the 
> community will try there best to help you.
>
> Best
> Jakob
>
> On 28.11.2015 12:21, b.atakbulbul at gmail.com wrote:
>>
>> Hi,
>> I am trying to use Scip programme.
>> I have read documents but I couldn't understand. I am very very confused.
>> I started with a very easy problem, but I couldn't solve.
>> Please help me.
>>
>> My first problem is :
>>
>> Furnco manufactures desks and chairs. Each desk uses 4 units of wood, 
>> and each chair uses 3 units of wood. A desk contributes $40 to 
>> profit, and a chair contributes $25. Marketing restrictions require 
>> that the number of chairs produced be at least twice the number of 
>> desks produced. There are 20 units of wood available.
>>
>> Determine a production plan that maximizes Furnco’s profit.
>>
>>
>> I solved this problem by using Excel Solver and results :
>>
>> the number of chair : 2
>>
>> the number of desk : 2
>>
>> profit : 180
>>
>>
>> How can I solve it by using Scip?
>>
>>
>> Please help me,
>>
>> I am looking forward to your reply.
>>
>> Berna.
>>
>>
>>
>> _______________________________________________
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>> http://listserv.zib.de/mailman/listinfo/scip
>
> -- 
> Jakob Witzig
>
> Konrad-Zuse-Zentrum für
> Informationstechnik Berlin (ZIB)
>
> Division Mathematical Optimization and Scientific Information
> Research Group Mathematical Optimization Methods
>
> Takustrasse 7
> 14195 Berlin
>
> Tel. : +49 (0)30 84185-416
> Fax  : +49 (0)30 84185-269
> email:witzig at zib.de
>
>
> _______________________________________________
> Scip mailing list
> Scip at zib.de
> http://listserv.zib.de/mailman/listinfo/scip

-- 
Jakob Witzig

Konrad-Zuse-Zentrum für
Informationstechnik Berlin (ZIB)

Division Mathematical Optimization and Scientific Information
Research Group Mathematical Optimization Methods

Takustrasse 7
14195 Berlin

Tel. : +49 (0)30 84185-416
Fax  : +49 (0)30 84185-269
email: witzig at zib.de

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