Google I/O お土産抽選

lottery_2018.rb

winners = []
entries = {
  "tshirt-1" => ["yumiko", "kurokawa", "ykawamura", "sato", "naoki", "nakahira", "takehiroxy", "hyeji", "nakahama", "tenshotanaka", "kengoiwt", "joker1007", "yuji"],
  "tshirt-2" => ["yumiko", "kurokawa", "ykawamura", "sato", "naoki", "nakahira", "takehiroxy", "hyeji", "nakahama", "tenshotanaka", "kengoiwt", "joker1007", "yuji"],
  "bag" => ["yumiko", "kurokawa", "hiratama", "naoki", "AtsushiHanyu", "nakahira", "taison", "mizuho", "satsukiy"],
  "sunglasses" => ["yumiko", "tsubasa_sasaki", "kurokawa", "naoki", "hyeji"],
  "water bottle" => ["yumiko", "Kasumi Inoue", "ykawamura", "hiratama", "naoki", "hyeji", "kengoiwt", "senohirona"],
}

entries.each do |k, v|
  while winner = v.delete_at(rand(v.length))
    break if !winners.include?(winner)
  end
  winners.push(winner)
  puts "Congrats! @#{winner} won the #{k}."
end

lottery_2019.rb

winners = []
entries = {
  "tshirt-1" => ["Toumei", "satsukiy", "kurokawa", "yumiko", "Hiroto", "Ishitoko", "yuki kikuchi"],
  "tshirt-2" => ["katsyoshi", "yuji", "sho", "Hiroto", "RyomaShindo", "haruki", "ohno", "toriumin"],
  "handkerchief" => ["yumiko", "nakahama"],
  "bag" => ["azeyanagi", "yayoi", "hiromitsu_ooka", "yuki inori"]
}

entries.each do |goodie, candidates|
  while winner = candidates.delete_at(rand(candidates.length))
    break if !winners.include?(winner)
  end
  winners.push(winner)
  puts "Congrats! @#{winner} won '#{goodie}'!!"
end

Congrats! @kurokawa won 'tshirt-1'!!
Congrats! @Hiroto won 'tshirt-2'!!
Congrats! @nakahama won 'handkerchief'!!
Congrats! @azeyanagi won 'bag'!!