suffix tree

[Yang Li]

I am looking at the suffix tree example on page 37 of
module08(display-version).
However I don't understand what the single number inside the internal nodes
is representing.
For example, the leftmost child of the root node is an internal node, and
this node contains a "1" and a "[1...1]".
I understand that "[1...1]" is represent the substring of T with index
specified but I don't understand what "1" means.

Thanks in advance

[cs240]

The number inside the internal node is the index that needs to be
compared next.

In your example you would go left or right depending on the value of P[1].