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  1. a = 0
  2. (100..999).each{|x|(100..999).each{|y|
  3.   z = x*y
  4.   a = z if z.to_s.reverse == z.to_s && a < z
  5. }}
  6. p a
Success #stdin #stdout 0.93s 7452KB
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906609
https://ideone.com/UonlD3
language:
Ruby (ruby 2.5.5)
created:
10 years ago
visibility:
public

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