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fix: PermutationGroups.Perm is no longer mutable

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Marek Kaluba 2024-02-06 13:33:21 +01:00
parent 826de34807
commit acb6b08ba9
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1 changed files with 2 additions and 2 deletions
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src/sqadjop.jl
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@ -27,13 +27,13 @@ function isadjacent(
end end
function _ncycle(start, length, n=start + length - 1) function _ncycle(start, length, n=start + length - 1)
p = PermutationGroups.Perm(Int8(n)) p = collect(Int8.(1:n))
@assert n ≥ start + length - 1 @assert n ≥ start + length - 1
for k in start:start+length-2 for k in start:start+length-2
p[k] = k + 1 p[k] = k + 1
end end
p[start+length-1] = start p[start+length-1] = start
return p return PermutationGroups.Perm(p)
end end
alternating_group(n::Integer) = PermutationGroups.PermGroup([_ncycle(i, 3) for i in 1:n-2]) alternating_group(n::Integer) = PermutationGroups.PermGroup([_ncycle(i, 3) for i in 1:n-2])