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Ingy döt Net 2023-07-01 11:58:00 -04:00
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Task/Fusc-sequence/F-Sharp/fusc-sequence-1.fs Normal file
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// Generate the fusc sequence. Nigel Galloway: March 20th., 2019
let fG n=seq{for (n,g) in Seq.append n [1] |> Seq.pairwise do yield n; yield n+g}
let fusc=seq{yield 0; yield! Seq.unfold(fun n->Some(n,fG n))(seq[1])|>Seq.concat}|> Seq.mapi(fun n g->(n,g))

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Task/Fusc-sequence/F-Sharp/fusc-sequence-2.fs Normal file
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fusc |> Seq.take 61 |> Seq.iter(fun(_,g)->printf "%d " g); printfn ""

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Task/Fusc-sequence/F-Sharp/fusc-sequence-3.fs Normal file
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let fN=let mutable n=0 in (fun (_,g)->if g>=n then n<-pown 10 (string g).Length; true else false)
fusc |> Seq.filter fN |> Seq.take 7 |> Seq.iter(fun(n,g)->printfn "fusc %d -> %d" n g)