Medium Accuracy: 52.09%
Submissions: 30122 Points: 4
Given two strings. The task is to find the length of the longest common substring.
Input: S1 = "ABCDGH", S2 = "ACDGHR"
Explanation: The longest common substring
is "CDGH" which has length 4.
Input: S1 = "ABC", S2 "ACB"
Explanation: The longest common substrings
are "A", "B", "C" all having length 1.
You don't need to read input or print anything. Your task is to complete the function longestCommonSubstr() which takes the string S1, string S2 and their length n and m as inputs and returns the length of the longest common substring in S1 and S2.
Expected Time Complexity: O(n*m). Expected Auxiliary Space: O(n*m).