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Rubyでじゃんけんを作る プログラングの練習

Last updated at Posted at 2022-04-13

何?

  • 人数を指定してじゃんけんをする
  • 勝敗がつくまでじゃんけんを続けて、勝敗がついたら試行回数を数える

コード



variations = ["G","C","P"]

MEMBER = ENV["MEMBER"]&.to_i || 3

puts "JANKEN!"
puts "#{MEMBER} members"

try_count = 0

(1..).each do |i|
  try_count = i
  cards = []

  MEMBER.times do
    cards.push variations.sample
  end

  puts cards.join(" ")

  # 勝敗が決まった場合
  # じゃんけんで勝敗が決まるのは、手の種類が2個の場合である
  if cards.uniq.count == 2
    break
  end
end

puts "#{try_count} tried"

実行例

image.png

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