On 22 May 2010, at 20:38, Kasim wrote: > Hi folks, > > I am just asking you guy's input to following: > > (defn- k-filter [el coll] > (filter #(not (= el %)) coll)) > > (defn combinations [n coll] > (if (= n 0) > nil > (for [el coll nlis (combinations (- n 1) (k-filter el coll))] > [el nlis]))) > > It is not working now. Here is an example I want this code to produce: > (combinations 2 '[A B C] -> ([AB],[AC],[BC]). Above code uses > recursion and I would like to see not recursive version. Any one care > to enlighten me? Thanks in advance.
Check out the clojure.contrib.combinatorics/combinations function: http://richhickey.github.com/clojure-contrib/combinatorics-api.html#clojure.contrib.combinatorics/combinations -Steve -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to [email protected] Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/clojure?hl=en
