Longest common subsequence problem for run-length-encoded strings

  title={Longest common subsequence problem for run-length-encoded strings},
  author={Shegufta Bakht Ahsan and Syeda Persia Aziz and Mohammad Sohel Rahman},
  journal={2012 15th International Conference on Computer and Information Technology (ICCIT)},
In this paper, we present a new and efficient algorithm for solving the longest common subsequence problem between two run-length-encoded (RLE) strings. Suppose Ŷ and X are two RLE strings having length k and ℓ, respectively. Also, assume that Y and X are the two uncompressed versions of the two RLE strings Ŷ and X having length k and ℓ respectively. Then, our algorithm runs in O((k + ℓ)+R loglog(kℓ) + R log log ω) time, where ω = k + ℓ and R is the total number of ordered pairs of positions at… CONTINUE READING

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