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cielavenir/gist:3485911

Created August 27, 2012 05:39
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Project Euler 36
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gistfile1.rb
#!/usr/bin/ruby
p 999999.times.map{|i|s,t=i.to_s,i.to_s(2);s.reverse==s&&t.reverse==t ?i:0}.reduce(&:+)
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