Algorithms + Data Structures + Coding Interviews with Python

"Why do we need to know algorithm. "For those who are already working in the IT field, you may wonder why we need to know algorithm since you don't use it in your day to day tasks. Not everyone working in the IT field uses algorithms, but let's take a moment to think about why candidates applying for GAFA (Aka Google, Apple, Facebook, Amazon) are always asked interview questions regarding data structures and algorithms.

What type of engineer do you want to be. As you may know, Google's search function and Tesla's automated driving require top quality performance and that wouldn't be possible without exceptional algorithm efficiency. Therefore, it's important for programmers to have the ability to write codes that can perform well.

Of course, if you just want to create a small scale web page using a simple web framework, you won't need to know about algorithm. But services that are popular in our modern society today will face issues with scalability. At the initial stage of creating services, whether the algorithm runs properly or not may be main issue, but as time progresses, the amount of data increases and programmers will have to focus on how to process the data received in a timely manner.

That's when the programmer's skills and knowledge are really put to the test. If you are considering working as an engineer in the Silicon Valley, in most cases (or perhaps all cases), you'll encounter a coding interview portion and without passing this portion of the interview, you won't be hired. Your soft skills may be looked at by the interviewer, but without a solid background and knowledge of algorithm, you won't be able to get the position.