I found some interesting surprises in your solution. First, you can build the shape of your array easily from the two lists. $s 4 $c 13 $s,"0/c 4 13 2 $c,"0/s 13 4 2
Second, I liked how you use the shape of the deck to get your random cards. This was an interesting extension of deal . ?~5 5 4 1 2 3 0 1 4 2 3 0 5 5 ?~ 5 5 1 3 0 2 4 3 0 1 4 2 ?~5 5 5 1 4 2 0 3 4 3 0 2 1 4 1 2 0 3 However, in this example you have introduced a problem I didn't notice for quite a while. ](i.15){"1 deckdwl AKQJT98765432AK ssssssssssssshh ]mixdwl (i.15){"1 deckdwl 867QKAA2K5JT394 ssssssshshsssss If you have each row using an independent deal the cards don't stay together. The two hearts are no longer the Ace and the King. In this case you want only one deal. mixdwl deckdwl A797T8427K676QQTJ839Q4JAT228565Q4K368399K2J3AT455AKJ dhshdccdsdhhcscdscdscsshdhhshdhsschhcccscddsddschhcd In the example above there are two Jack of Spades. If you correct mix the dole works much better than mine and your extension to allow a different number of cards to more or fewer people is interesting. 5 doledwl2 deckdwl A94Q72T5K83 ssshhhddccc K83J6A94Q72 ssshhdddccc Q72T5K83J6A ssshhdddccs J6A94Q72T5A sshhhdddccs T5K83J6A94A sshhhddcccs Here it would probably be better to deal fewer cards to each person. I haven't figured out why all three cards filled in at the end are the Ace of Spades rather than cycling throught the pack again. In any case, I learned a lot and appreciate your more general approach. Lindac -----Original Message----- From: David Ward Lambert [mailto:b49p23t...@stny.rr.com] Sent: Thursday, January 05, 2012 12:44 PM To: Linda Alvord Subject: jsoftware bridge deal challenge NB. Our doles are similar NB. The LA versions contain more 4s, 13s and 52s NB. therefor the DWL versions are more general. NB. doledwl is hard coded for 4 hands. 's c'=: ;:'shdc AKQJT98765432' vdeckdwl=: [: |: [: ,/ ,"0~/ deckdwl=: s vdeckdwl c mixdwl=: ({~ [: ?~ #)"1 doledwl=: [: |:"2 [: ({~ [: |: _4 [\ [: i. #) |: NB. number_of_hands doledwl2 deck NB. works for number of hands as a factor of the number of cards doledwl2=: 4&$: :(4 : '([: |:"2 [: ({~ [: |: (-x) [\ [: i. #) |:)y') ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm