AIZU ONLINE JUDGE: Programming Challenge 0000 QQ 9.times do |i| 9.times {|j| puts "#{x = i + 1}x#{y = j + 1}=#{x * y}"} end 0001 List of Top 3 Hills puts $<.readlines.map(&:to_i).sort {|a, b| b <=> a}.take(3) 0002 Digit Number $<.readlines…