Help with Two Pointer techniques

• leetcode-patterns

  290 9,535 7.8 JavaScript

  A pattern-based approach for learning technical interview questions

Hello, I have been working with the Two Pointer pattern for the past few days and am struggling with identifying when to use each type of two pointer (ie. fast/slow, front/back, etc.). I found some lists such as These Tips from Sean Prashad however I still find myself having to guess most of the time. Even if I do eventually figure out which two pointer technique to use, I usually waste a lot of time trying out the other methods. It would be very helpful if there was some kind of list that suggested which technique to use given the parameters of the problem. Does anyone know of such as list or can make and share one?

• Grokking-the-Coding-Interview-Patterns

  45 972 9.0

  Discontinued This course categorizes coding interview problems into a set of 16 patterns. Each pattern will be a complete tool - consisting of data structures, algorithms, and analysis techniques - to solve a specific category of problems. The goal is to develop an understanding of the underlying pattern, so that, we can apply that pattern to solve other problems. [UnavailableForLegalReasons - Repository access blocked]

Hi u/Educational-Copy5206 I found this very useful https://www.educative.io/courses/grokking-the-coding-interview which has a chapter about two pointer technique

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