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Bit Tetris

Ruby
どう書く
yhpg

Last updated at 2014-01-01Posted at 2013-10-15

hena2.rb

#!/usr/bin/env ruby
#http://nabetani.sakura.ne.jp/hena/ord2/
STDOUT.sync=true
while gets
    puts $_
        .split('-')
        .map{|e|f=e.to_i(16);8.times.map{|i|f[i]}}
        .transpose
        .delete_if{|e|e.all?{|f|f==1}}
        .transpose
        .map{|e|sprintf("%02x",e.map(&:to_s).join.reverse.to_i(2))}*'-'
end

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