Cycles of a permutation: Difference between revisions
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""" Create a permuted string from another string using a Perm """ |
""" Create a permuted string from another string using a Perm """ |
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permutestring(s::AbstractString, p::Perm) = String([s[i] for i in p.a]) |
permutestring(s::AbstractString, p::Perm) = String([s[i] for i in p.a]) |
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""" Given an iterable of equal length and a Perm, return a permuted vector of the iterable's elements """ |
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function permuted(iterable, p1::Perm) |
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p2 = Perm(iterable) |
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inttoitem = Dict(enumerate(iterable)) |
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return [inttoitem(i) for i in (p1 * p2).data] |
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end |
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function testAlfBettyPerms() |
function testAlfBettyPerms() |
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