This is a walkthrough of what to do and how to approach a coding interview question when you’re sitting opposite an interviewer from a tech company who is expecting you to reach a solution in the next 30 minutes.

Imagine a knife that has magical powers. It’s blade is so sharp that it can cut through any matter. It can glide through metal and dissect diamond like butter. The edge of the blade is basically infinitely small, and sharp, and slices through matter itself and cuts at the atomic level.

Classical musicians must learn specific techniques to master their instrument. Violinists, pianists and opera singers have a rigid schedule since childhood - master specific scales, practice with increasing tempo, and repeat. Athletes and bodybuilders have to follow specific diets for their body - following a course of nutrition and a set training program that burns these many calories, will bring body fat percentage to x%. These techniques have been learned and refined since generations.

I started listening to tech podcasts in 2014. I had a horrible commute during my summer internship in Noida that required 4 hours of traveling a day. It wasn’t much better in the next 6 months of my PS in Bangalore - 3 hours everyday.