My Solution for February Challenge is not getting accepted
Kim Nguyen
46
  # find possible subsequences
  find_subsequences(nums, 0, [])
  arr_length = 0
  ARR.each do |a|
    if a.length > arr_length
      arr_length = a.length
    end
  end
  p arr_length
end

ARR = []
def find_subsequences(nums, index, sub_arr)
  if index == nums.length
    if sub_arr.length != 0 && sub_arr.max() - sub_arr.min() === 1 
      ARR << sub_arr
    end
  else
    find_subsequences(nums, index + 1, sub_arr)
    find_subsequences(nums, index + 1, sub_arr + [nums[index]])
  end
end

This is my solution for today (02/04) February challenge. I tried to look up and saw in FAQ that "If you must declare one, reset them in the first line of your called method or in the default constructor". When I tried to run my code, it passed the initial test but when I tried to submit it, they declined my solution. Anyone have any idea how to reset my global variable in this case? Any inputs would be highly appreciated.

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