ワクワクチンチンが出るまでランダムに"ワ","ク","チ","ン"を出す

vaccine.rb

# inspired by https://anond.hatelabo.jp/20210604154733

CHAR_BOX=%w|ワ ク チ ン| 
TARGET_STR="ワクワクチンチン"
current_str_a = []
current_str = ""
while true do
  current_str_a.shift if current_str_a.size >= TARGET_STR.size
  c = CHAR_BOX.sample
  current_str_a << c
  current_str = current_str_a.join
  puts current_str
  break if current_str == TARGET_STR
end
puts "\n"
puts "＿人人人人人人人人＿"
puts "＞#{current_str}＜"
puts "￣Y^Y^Y^Y^Y^Y^Y^Y￣"

実行結果