AIZU ONLINE JUDGE: Programming Challenge 0110 Alphametic $<.readlines.map(&:chomp).map {|l| l.split(/\+|=/)}.each do |given| catch(:jump) do 10.times do |i| d = given.map {|a| a.gsub("X", i.to_s)} next unless d.select {|s| s.length >= 2 an…