Two Pointer is basically what the name says. You’ve got to use two variables to track positions within an array or linked-lists. This approach excels in the following: Data structures Arrays (sorted or unsorted) Linked lists Problem types Find a set of elements that fulfill certain constraints Pairs, Triplets, Sub-arrays. The most common problem types you’ll encounter are something like this: Given an array of numbers and a target sum, find a pair in the array whose sum is equal to the given target.…

So, I’ve been grinding LeetCode (Blind 75) and plenty of DesignGurus. My plan is to get better at problem solving and revive the old days at College where all these topics were the only thing we talked about. My intention with the knowledge that I get from this grinding is to write down some tips and tricks for the things that I learn. I won’t post solutions to problems or so, instead I will try to talk about each pattern I learn.…

Hello, welcome to my personal blog :)…