21 lines
694 B
Factor
21 lines
694 B
Factor
|
! Copyright (C) 2020 Bubbler.
|
||
|
|
! See http://factorcode.org/license.txt for BSD license.
|
||
|
|
USING: help.markup help.syntax kernel sequences ;
|
||
|
|
IN: rosalind.sign
|
||
|
|
|
||
|
|
HELP: sign
|
||
|
|
{ $values
|
||
|
|
{ "n" "An integer" }
|
||
|
|
{ "seq" "A sequence" } { "len" "An integer" }
|
||
|
|
}
|
||
|
|
{ $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." } ;
|
||
|
|
|
||
|
|
HELP: sign-main
|
||
|
|
{ $description "Solves the problem SIGN on Rosalind, using a real dataset." } ;
|
||
|
|
|
||
|
|
ARTICLE: "rosalind.sign" "rosalind.sign"
|
||
|
|
{ $vocab-link "rosalind.sign" }
|
||
|
|
;
|
||
|
|
|
||
|
|
ABOUT: "rosalind.sign"
|