On Wed, Feb 18, 2009 at 12:30 PM, Telman Yusupov <use...@yusupov.com> wrote:
>
> I'm not sure which version is more idiomatic, but the last one seems
> to give me the best performance out of all versions.

No prettier, but a bit faster:

(defn remove-at42 [coll & indexes]
  (let [iset (set indexes)]
    (loop [i (int 0) sq (seq coll) v []]
      (if-not sq
        v
        (recur (inc i)
               (next sq)
               (if (iset i)
                 v
                 (conj v (first sq))))))))

--Chouser

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