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Task/Quickselect-algorithm/OCaml/quickselect-algorithm.ocaml
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Task/Quickselect-algorithm/OCaml/quickselect-algorithm.ocaml
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@ -0,0 +1,10 @@
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let rec quickselect k = function
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[] -> failwith "empty"
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| x :: xs -> let ys, zs = List.partition ((>) x) xs in
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let l = List.length ys in
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if k < l then
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quickselect k ys
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else if k > l then
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quickselect (k-l-1) zs
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else
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x
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