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$S$ is the string of characters:TACGCGGT$

For string S and each of the positions $i=1,2,\dots,9$ write down the suffix string starting at position $i$.

What is the above question asking? For the following question I need to create the suffix tree, which I have done. But the above question seems to be asking me to simply write:

TACGCGGT$,ACGCGGT$,CGCGGT$,GCGGT$,CGGT$,GGT$,GT$,T$,$.

Surely that isn't the answer to the problem. What does it mean?


Alternatively: It could be asking me for

T: ACGCGGT$,$ A: CGCGGT$ C: GCGGT$,GGT$ G: CGGT$,GT$,T$ C: GGT$ $: ``

But that seems absurd, since it doesn't really feel like $i=1,2,\dots,9$ since we don't really do $i=6,7,8$, as they are already done.


The first way seems wrong since it would be too easy for a second year math course, especially for $8\%$ of the test's value...

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  • $\begingroup$ That's what it sounds like. $\endgroup$ Nov 9, 2014 at 4:24
  • $\begingroup$ Frankly, it really does look like your first interpretation is correct; I would have understood it the same way. Perhaps it is intended as a simple warm-up for the next question, so that if you do that one wrong, it will be clear if you just made a mistake or got no idea of what a suffix is :-) $\endgroup$ Nov 9, 2014 at 17:23

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