A - +-x a, b = gets.split.map(&:to_i) puts [a + b, a - b, a * b].max B - One Clue k, x = gets.split.map(&:to_i) puts [*x - k + 1..x + k - 1].join(" ") C - Green Bin words = gets.to_i.times.map {gets.chomp.chars.sort.join}.group_by(&:itself…