Who among the following provided the first suffix tree contribution for all alphabet?

(a) Weiner

(b) Farach

(c) Ukkonen

(d) Alexander Morse

I would like to ask this question from Suffix Tree topic in portion Trie of Data Structures & Algorithms I

The question was asked in a national level competition.

1 Answers

Correct choice is (b) Farach

Best explanation: The concept of Suffix Tree was introduced by Weiner in 1973. Ukkonen provided the first online contribution of Suffix tree which had the time complexity of the fastest algorithm of that period. Farach gave the first suffix tree contribution for all alphabets in 1997.