Talk:Set puzzle: Difference between revisions
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: You need the exact number of sets in the dealt cards, not more not less. Imagine you had to generate the puzzle for an applet such as [http://www.nytimes.com/ref/crosswords/setpuzzle.html this one]. And yes, you may use cards more than once. [[User:Fwend|Fwend]] 20:18, 10 February 2013 (UTC)
::Does that mean that for the 9 cards above I have found twelve sets, but I need to refine my algorithm to only deal 9 cards if they can generate a maximum of only four sets? I.e. add a post-filter? --[[User:Paddy3118|Paddy3118]] 02:20, 11 February 2013 (UTC)
::: If you deal 9 cards there should be exactly 4 sets in it, not more, not less. There are different ways of doing that. [[User:Fwend|Fwend]] 03:01, 11 February 2013 (UTC)
::Hi Fwend,I dealt 9 and got 12. How is my deal wrong? How are my sets wrong? I need help in understanding the task description, as I create a deck of 81 cards, draw 9, and get various numbers of sets out of it. Thanks. --[[User:Paddy3118|Paddy3118]] 08:01, 11 February 2013 (UTC)
:::My understanding from the task description is that there is an "arbitrary" requirement to return only deals where there are exactly 4 sets. A brute force way of doing this is to repeatedly sample 9 cards from the pack until you get a deal that contains exactly 4 sets. HTH. --[[User:Tikkanz|Tikkanz]] 09:49, 11 February 2013 (UTC)
:::: You're asked to create the dealer code for an ''existing'' puzzle game, that happens to have these rules. They may seem arbitrary, but I'm sure the puzzle designers had a reason for it, which probably has to do with consistency of presentation and degree of difficulty. [[User:Fwend|Fwend]] 10:40, 11 February 2013 (UTC)
::::: Sure. But from the point of view of someone solving the task on this site, the choice of 4 (or 6) is fairly arbitrary. I don't have any problem with that. I was just thinking that perhaps Paddy was over thinking the problem and that clarification might help. --[[User:Tikkanz|Tikkanz]] 11:20, 11 February 2013 (UTC)
== Java error msg ==
how can I fix this;
<pre>
javac 1.8.0_05
SetPuzzle.java:2: error: package org.apache.commons.lang3 does not exist
import org.apache.commons.lang3.ArrayUtils;
^
SetPuzzle.java:82: error: cannot find symbol
cards = ArrayUtils.subarray(deck, 0, numCards);
^
symbol: variable ArrayUtils
location: class SetPuzzle
2 errors
</pre>--[[User:Walterpachl|Walterpachl]] ([[User talk:Walterpachl|talk]]) 21:06, 28 July 2014 (UTC)
: I removed the dependency on a third party library, it should work now. [[User:Fwend|Fwend]] ([[User talk:Fwend|talk]]) 22:52, 28 July 2014 (UTC)
:: ok- thanks! --[[User:Walterpachl|Walterpachl]] ([[User talk:Walterpachl|talk]]) 07:31, 29 July 2014 (UTC)
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