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  1. ARGF.grep(/^(?!.*XXXX)/){|line|puts line}
Success #stdin #stdout 0s 4760KB
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stdin
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ABDDDDG
ABEEEEG
ABFFFFG
ABXXXXG
ABXXXXXG

ABHHHHG
stdout
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ABDDDDG
ABEEEEG
ABFFFFG

ABHHHHG
https://ideone.com/TFsXh
language:
Ruby (ruby 2.5.5)
created:
12 years ago
visibility:
secret

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