Leetcode Pattern 4 | Meta Stuff So this article is a bit different from the other ones in this series and it’s not about specific algorithms but the general approach one should try to follow in their leetcode journey. This is based on my own personal experiences and what I have gathered talking to people who…

Leetcode Pattern 3 | Backtracking A very important tool to have in our arsenal is backtracking, it is all about knowing when to stop and step back to explore other possible solutions. In today’s post we’ll explore the common pattern in solving backtracking problems and set up the stage to dive into dynamic programming (DP)…

Leetcode Pattern 2 | Sliding Windows for Strings A fellow redditor from /r/cscareerquestions pointed me to this awesome thread on leetcode discuss which reveals the sliding window pattern for solving multiple string (substring) problems. Today we’ll explore the intuition behind this powerful technique and apply it to some very famous string problems. …

Leetcode Pattern 1 | DFS + BFS == 25% of the problems — part 2 Hola again ! Thanks for all the positive feedback. It really motivates me to keep writing daily. Many people actually asked me to write on DP patterns next as that is the most dreaded topic in interview prep. I would dedicate the next few posts to the same, building intuition…

Leetcode Pattern 1 | BFS + DFS == 25% of the problems — part 1 It is amazing how many graph, tree and string problems simply boil down to a DFS (Depth-first search) / BFS (Breadth-first search). Today we are going to explore this basic pattern in a novel way and apply the intuition gained to solve some medium problems on Leetcode. Let us build…

Leetcode Pattern 0 | Iterative traversals on Trees The key to solve algorithm problems posed in technical interviews or elsewhere is to quickly identify the underlying patterns. This is my attempt to decompose leetcode problems and group them into minimal sets. I figured out this would be a useful insight for future people in tech ( long live…

(today’s topic : augmented reality) Hola ! I am excited to share with you the advances being made in the field of augmented reality (AR) and in today’s post I will try to highlight some of the awesome use cases being powered by AR. To augment means to enhance and…

( today’s topic : flying cars and self driving cars ) So I am starting out this new personal blog , where I would simply pen down my thoughts on the technological advances I read about on a daily basis. I strongly think, every individual should have a solid knowledge…