Permutations by swapping: Difference between revisions

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→‎{{header|Wren}}: Changed to Wren S/H
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=={{header|Wren}}==
{{trans|Kotlin}}
<syntaxhighlight lang="ecmascriptwren">var johnsonTrotter = Fn.new { |n|
var p = List.filled(n, 0) // permutation
var q = List.filled(n, 0) // inverse permutation
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