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QUESTION - Given two strings, and , find and print the total number of ways to insert a character at any position in string such that the length of the Longest Common Subsequence of characters in the two strings increases by one.

n^2 approach acceptable

my approach to this question

Please , can anybody help me what's wrong in my code. I have commented it so that it is easy to understand. I think there is some recounting in my approach.