嗨，我是 Fly，用 Ruby 寫 Chatbot 並挑戰30天分享心得
為確保不會沒靈感
每日含 Ruby 解題增加內容
https://www.hackerrank.com/domains/tutorials/30-days-of-code

Day 6: Let's Review

• gets after chomp incase \n will leave in string
• All variable should declare first!
• String.split('') to Array with each letter

ns = gets.to_i
ns.times do |n|
    odd = []
    even = []
    xs = gets.to_s.chomp
    xs.split('').each_with_index do |x, index|
      odd << x if index.odd?
      even << x if index.even?
    end
    print "#{even.join} #{odd.join}\n"
end