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What is a time complexity for finding the longest prefix that is common between suffix in a string?

(a) Ɵ (n)

(b) Ɵ (n!)

(c) Ɵ (1)

(d) O (log n!)

This question is from Suffix tree in division Trie of Data Structures & Algorithms I

This question was posed to me in an interview.

1 Answer

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Right option is (c) Ɵ (1)

The best explanation: Suffix Tree allows fast string operation. To check if a substring is present in a string of a length of n, the time complexity for such operation is found to be O (n). The time complexity for finding the longest prefix that is common between suffix in a string is Ɵ (1).

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