You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
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i=File.read_lines("day5.txt").map &.tr("FBLR", "0101").to_i32(2);
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puts({i.max,(i.min..i.max).select{|n|!i.includes? n}})
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