gistfile1.txt

@ans=[]

def combo(index)
  n = @parameters.size
  (0..(n-1)).each do |p|
    r = 1
    @parameters.keys[(p+1)..(n-1)].each do |k|
      r *= @parameters[k].size
    end
    @ans << index/r
    index = index % r
  end
end

600_000.times do |i|
  @ans=[]
  hash={}
  combo(i)
  @ans.each_with_index do |p,i|
    #puts "p=#{p}, i=#{i}"
    a = @parameters.keys[i]
    hash[a] = @parameters[a][p]
  end
  # p hash
end