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Task/Super-d-numbers/F-Sharp/super-d-numbers-1.fs
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Task/Super-d-numbers/F-Sharp/super-d-numbers-1.fs
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// Generate Super-N numbers. Nigel Galloway: October 12th., 2019
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let superD N=
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let I=bigint(pown 10 N)
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let G=bigint N
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let E=G*(111111111I%I)
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let rec fL n=match (E-n%I).IsZero with true->true |_->if (E*10I)<n then false else fL (n/10I)
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seq{1I..999999999999999999I}|>Seq.choose(fun n->if fL (G*n**N) then Some n else None)
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Task/Super-d-numbers/F-Sharp/super-d-numbers-2.fs
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Task/Super-d-numbers/F-Sharp/super-d-numbers-2.fs
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superD 2 |> Seq.take 10 |> Seq.iter(printf "%A "); printfn ""
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superD 3 |> Seq.take 10 |> Seq.iter(printf "%A "); printfn ""
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superD 4 |> Seq.take 10 |> Seq.iter(printf "%A "); printfn ""
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superD 5 |> Seq.take 10 |> Seq.iter(printf "%A "); printfn ""
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superD 6 |> Seq.take 10 |> Seq.iter(printf "%A "); printfn ""
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superD 7 |> Seq.take 10 |> Seq.iter(printf "%A "); printfn ""
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superD 8 |> Seq.take 10 |> Seq.iter(printf "%A "); printfn ""
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superD 9 |> Seq.take 10 |> Seq.iter(printf "%A "); printfn ""
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