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12 lines
339 B
12 lines
339 B
6 years ago
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a = ARGF.read.lines.map(&:chomp).map(&:chars)
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# two = a.count {|i| i.any? {|x| i.count(x) == 2} }
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# three = a.count {|i| i.any? {|x| i.count(x) == 3} }
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# puts two * three
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x,y = a.flat_map {|i|
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a.select {|j|
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i.zip(j).select {|a,b| a != b }.count == 1
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}
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}.map(&:join)
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p x.chars.zip(y.chars).select {|a,b| a == b }.map(&:first).join
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