gistfile1.txt

def flattern(array, main_array, index)
  while( index < array.length)
    if(array[index].class == Array)
      flattern(array[index], main_array, 0)
    else
      main_array.push(array[index])
    end
    index = index + 1
  end
  main_array
end


ar = [1,2,3,[1,2,3,4],45,6,[1,2]]

puts flattern(ar, [], 0)