Permutations: Difference between revisions
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(→{{header|Perl 6}}: borrow simplified code from dinesman) |
(→{{header|Perl 6}}: explain use of "after") |
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</pre> |
</pre> |
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=={{header|Perl 6}}== |
=={{header|Perl 6}}== |
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This is generic code that works with any ordered type. To force lexicographic ordering, change <tt>after</tt> to <tt>gt</tt>. To force numeric order, replace it with <tt>></tt>. |
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<lang perl6>sub next_perm ( @a is copy ) { |
<lang perl6>sub next_perm ( @a is copy ) { |
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my $j = @a.end - 1; |
my $j = @a.end - 1; |