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vznvzn/expand.rb

Created March 12, 2016 06:28
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expand.rb
def expand(l)
l2 = []
l.each \
{
|x|
l2 << '10' + x[1..-1]
l2 << '11' + x[1..-1]
}
return l2
end
l = ['1']
p(l)
5.times { l = expand(l); p(l) }
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