ruby code

Ruby code posted
created at 08 Oct 09:18, updated at 20 Oct 02:49

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def something
  a = [
        [  1, 2, 3, 4 ],
        [  5, 6, 7, 8 ],
        [ 9, 10,11,12 ],
        [ 13,14,15,16 ]
      ]
  puts a.inspect
  (0..3).each do |i|
    (0..3).each do |j|
      aux = a[i][j]
      a[i][j] = a[j][i]
      a[j][i] = aux
    end
  end
  puts a.inspect
end

something
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