I don't see why it won't work with case c. Perhaps I don't understand exactly what you mean. Can you provide a bit more detail or some examples so I can see what you're meaning? If so, I may be able to tweak things up a bit. (It would be best to have a few examples of each of the cases, so we can cover all the corners.)
...roboticus
When your only tool is a hammer, all problems look like your thumb.
In reply to Re^3: Filtering matches of near-perfect-matched DNA sequence pairs
by roboticus
in thread Filtering matches of near-perfect-matched DNA sequence pairs
by onlyIDleft
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