21 lines
694 B
Factor
21 lines
694 B
Factor
! Copyright (C) 2020 Bubbler.
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! See http://factorcode.org/license.txt for BSD license.
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USING: help.markup help.syntax kernel sequences ;
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IN: rosalind.sign
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HELP: sign
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{ $values
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{ "n" "An integer" }
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{ "seq" "A sequence" } { "len" "An integer" }
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}
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{ $description "Solves the problem SIGN on Rosalind: output all signed permutations, along with the count of them. A signed permutation is defined as a permutation of 1 to n, where each number can have positive or negative sign attached." } ;
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HELP: sign-main
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{ $description "Solves the problem SIGN on Rosalind, using a real dataset." } ;
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ARTICLE: "rosalind.sign" "rosalind.sign"
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{ $vocab-link "rosalind.sign" }
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;
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ABOUT: "rosalind.sign"
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