.ruby-version

2.3.3

at_coder_abc131_eat_bite.rb

array = gets.chomp.split(' ')
N = array[0].to_i
L = array[1].to_i
flavor_list = []
N.times do |i|
  flavor_list.push(L + i)
end
bite = if N.abs > -L
         flavor_list.map(&:abs).min
       else
         - flavor_list.map(&:abs).min
       end
print flavor_list.inject(:+) - bite

at_coder_abc131_security.rb

i = gets.chomp
prev = ''
result = ''
i.split('').each do |k|
  if k == prev
    result = 'Bad'
    break
  else
    result = 'Good'
  end
  prev = k
end
print result