11 lines
192 B
Text
11 lines
192 B
Text
var c = 0
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var seen = Hash()
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ARGF.each { |line|
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line.chomp!
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var r = line.reverse
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((seen{r} := 0 ++) && (c++ < 5) && say "#{line} #{r}") ->
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|| (seen{line} := 0 ++)
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}
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say c
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