I = 1000

def tirage_seq
  counter = 0
  n = 0
  loop do
    counter += 1 if [0, 1].sample == 1
    n += 1
    break if counter == 10
  end
  n
end

def gen_str
  10.times.reduce('') { |memo, _| memo + ['0', '1'].sample }
end

def tirage_bloc
  n = 0
  loop do
    n += 1
    break if gen_str == '1111111111'
  end
  n
end

sum_seq = sum_bloc = 0
I.times do
  sum_seq += tirage_seq
  sum_bloc += tirage_bloc
end

puts "Tirage en séquence : #{sum_seq / I}"
puts "Tirage par blocs : #{sum_bloc / I}"