As some of you may know from previous threads im trying to practice
specific areas of ruby. One simple exercise i set myself was taking a
elements in an array such as

[1,2,3,1,2,2,4,3,2,1]

and then grouping them together and putting them in subarrays within an
array like this

[ [1,1,1], [2,2,2,2] , [3,3] ,[4] ]

Heres how i did it (im new to both programming and ruby)

def subpack(list)
  uniqlist = Array.new
  subpacklist = Array.new
  list.sort!

  uniqlist = list.uniq
  uniqlist.each_index do |i|
    rangeleft = list.index(uniqlist[i])
    rangeright = list.rindex(uniqlist[i])
    subpacklist << list.slice(rangeleft..rangeright)
  end
  subpacklist
end


WITHOUT GIVING ME YOUR SOLUTION IN FULL, how could i improve this...
i.e. give me some hints, the names of some methods but not the solution
as i want a go myself.
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