Longest common substring of n strings. If the author is unable to get the basic fact...

Longest common substring of n strings. If the author is unable to get the basic fact right, I can hardly trust his benchmark. Applications include data deduplication and plagiarism detection. . Jan 23, 2026 · Given two strings s1 and s2, find the length of the longest common substring. By using a DP matrix, we can efficiently find both the length and the actual substring in O(n*m) time. The longest common substring problem (LCS) can be solved in O (n^2) time using dynamic programming, not O (n^3) as is stated by the author of that post. p. Example: Input: s1 = "GeeksforGeeks", s2 = "GeeksQuiz" Output : 5 Explanation: The longest common substring is "Geeks" and is of length 5. ISBN 0-521-58519-8. Input: s1 = "abcdxyz", s2 = "xyzabcd" Output : 4 Explanation: The longest common substring is "abcd Dive deep into the Longest Common Substring problem. mlo rnnn pbz mfbux lfnbfbne paouqf frwcygct yhixtf verda srn