Text comparison algorithm

Question

We have a requirement in the project that we have to compare two texts (update1, update2) and come up with an algorithm to define how many words and how many sentences have

Answer 1

An O(NP) Sequence Comparison Algorithm is used by subversion's diff engine.

For your information, there are implementations with various programming languages by myself in following page of github.

https://github.com/cubicdaiya/onp