September 2017 Update

This commit is contained in:
Ingy döt Net 2017-09-23 10:01:46 +02:00
parent bba7bfd280
commit ba8067c3b7
14570 changed files with 153136 additions and 63871 deletions

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(defn combinations [coll k]
(when-let [[x & xs] coll]
(if (= k 1)
(map list coll)
(concat (map (partial cons x) (combinations coll (dec k)))
(combinations xs k)))))

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user> (combinations '[iced jam plain] 2)
((iced iced) (iced jam) (iced plain) (jam jam) (jam plain) (plain plain))