e.g. Given the string 'mississippi', 'issi' is a substring, 'miss' is a prefix (& a substring), & 'ippi' is a suffix. Note that a substring is a prefix of a suffix, and a suffix of a prefix. A Suffix Tree is a data-structure that allows many problems on strings (sequences of characters) to be solved quickly. If txt=t1t2...ti...tn is a string, then Ti=titi+1...tn is the suffix of txt that starts at
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