#coding:utf-8
 
def func n , r
  ((n-r)...n).map do |i|
    puts "#{i} からＢ落とす"
    if rand(30) == 0
      puts "#{i}階で卵Ｂが割れた"
      puts "割れないのは#{i-1}階まで"
      return
    end
  end
  puts "卵Ｂは割れなかった"
  puts "割れないのは#{n-1}階"
end
 
def f n , r , limit
  if n > limit
    puts "卵Ａは#{limit}階でも割れなかった"
    return
  end
  puts "#{n} からA落とす"
  if rand(2) == 0
    puts "#{n}階で卵Ａが割れた"
    func n , r - 1
    return
  else
    r /= 2
    r = 1 if r.zero?
    f n + r , r , limit
  end
end
f 50 , 50 , 100
 

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