Permutations/Rank of a permutation: Difference between revisions
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end
def each
return self.to_enum unless block_given?
(0..@size-1).each{|i| yield unrank(i)}
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</pre>
Really generating one million unique random permutations of 144 elements would take an estimated 11 hours on one core of my machine.
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{{trans|D}}
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