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added 46 characters in body

edited Oct 6, 2022 at 5:42

Ruby, 6262 57 bytes

->a,w{a.product(*[*[a]*a*a.size]map{a}).map(&:uniq).sort.uniq.index w}

Thanks Jordan for the hint that saved 5 bytes.

->a,w{a.product(*[*[a]*a.size]).map(&:uniq).sort.uniq.index w}

->a,w{a.product(*a.map{a}).map(&:uniq).sort.uniq.index w}

Thanks Jordan for the hint that saved 5 bytes.

answered Oct 5, 2022 at 19:33

->a,w{a.product(*[*[a]*a.size]).map(&:uniq).sort.uniq.index w}