This article is all about my placements journey. I have cleared interviews and got offers from Microsoft, Twitter, Amazon, PayPal, Cisco, and a couple more. I am sharing my interview experiences not only for these companies but for all the companies where I was rejected too — Google, Sharechat, Atlan…

I am going to watch The Famous — System Design Playlist by Gaurav Sen and make notes of it for you as well as me to revise it whenever needed :) Horizontal scaling Adding more machines to deal with increasing requirements. These machines handle requests in parallel to improve user…

I was recently offered a Pre Placement Offer from Innovaccer after my 2 months summer internship. Many juniors approached me regarding the interview process and preparation strategy, so I am publishing this article to altogether answer all common questions. Hoping, it would be helpful. About Innovaccer Innovaccer Inc. is a Silicon Valley-based…

I was interviewed for the SDE Intern position in Google India. Though I was not selected, the interview experience itself was enlightening for me as I got the opportunity to reflect upon my strengths and weaknesses. “FAILURE IS THE BEST TEACHER” — I realized it closely in the process. I…

We are gonna solve 5 questions related to combinations using backtracking, so for your and my convenience, I have divided the part 4 into 2 parts. Question 1: Letter Combinations of a Phone Number Given a string containing digits from 2-9 inclusive, return all possible letter combinations that the number could represent. A mapping of digit to letters…

QUESTION 1 — Permutations Given a collection of distinct integers, return all possible permutations. Example: Input: [1,2,3] Output: [ [1,2,3], [1,3,2], [2,1,3], [2,3,1], [3,1,2], [3,2,1] ] I will discuss 2 different thought processes and solutions for this question. Both approaches involve Backtracking. THOUGHT PROCESS FOR BACKTRACKING SOLUTION — 1 Let's revise the backtracking Brahmastr before moving on, as we will follow…

Subsets — I Given a set of distinct integers, nums, return all possible subsets (the power set). Note: The solution set must not contain duplicate subsets. Example: Input: nums = [1,2,3] Output: [ [3], [1], [2], [1,2,3], [1,3], [2,3], [1,2], [] ] THREE DIFFERENT SOLUTIONS 1. THOUGHT PROCESS FOR 1st BACKTRACKING SOLUTION For each element, I have two choices whether to keep…

By the end of this article series, you will be armed with crystal clear concepts of several selection problems solved with Backtracking. I am writing this article assuming the reader has a basic knowledge of what is Recursion and Backtracking, if not I suggest you do it before moving on. …

Project Link: https://github.com/Manvityagi/Face-Recognition-using-KNN-openCV Abstract Face recognition is a crucial security application. Through this project, a very basic form of face recognition has been implemented using the Haar Cascades Classifier, openCV & K-Nearest Neighbors Algorithm. Introduction The face is the most crucial entity for human identity. It is the feature that best…