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++ Wow, thank you for introducing me to suffix trees. What an interesting concept, and how refreshing to see a linear-time algorithm for constructing such a creature. I see you've used the javascript applet at this page, which others may want to check out.

However, I'd like to slightly revise the algorithm you outlined. Consider the following example:

string = ababc%bc$ | |(3:abc%bc$)|leaf |(1:ab)| | |(5:c%bc$)|leaf tree:| | |(3:abc%bc$)|leaf |(2:b)| | | |(6:%bc$)|leaf | |(5:c)| | | |(9:$)|leaf | | |(6:%bc$)|leaf |(5:c)| | |(9:$)|leaf | |(6:%bc$)|leaf | |(9:$)|leaf
"ab" appears twice in the first string, and so it gives a node with two leaves. The actual condition you should check is whether a node has one leaf containing the % separator and another leaf without the % symbol.


In reply to Re^2: Challenge: Fast Common Substrings by blokhead
in thread Challenge: Fast Common Substrings by Limbic~Region

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