Learn how to master technical interviews for software engineering roles. We just posted a 49-hour course on the freeCodeCamp.org YouTube channel that will teach you everything you need to know about data structures and algorithms. Parth Vyas created ...

freeCodeCamp is a nonprofit organization offering free online coding courses and programming tutorials, covering topics such as web development, data science, and machine learning. Learners can gain practical coding skills, build real-world projects, and earn certifications to advance their careers in tech.

freeCodeCamp

A comprehensive 49-hour course covering data structures and algorithms for technical interview preparation. The course teaches fundamental concepts including time and space complexity analysis with Big O notation, and covers major data structures (arrays, linked lists, stacks, queues, trees, graphs) and algorithm patterns (sliding window, two pointers, dynamic programming, backtracking, greedy algorithms). Created by Parth Vyas and available on freeCodeCamp's YouTube channel.

Master Technical Interviews by Learning Data Structures and Algorithms

The best way to learn data structures and algorithms is by applying them. Instead of wasting 49 hours of your life watching video tutorials, do issues on leetcode, do them without help first and at some point, either when you are done or when you REALLY can’t go any further, look up the solutions or even better, put the question into ChatGPT and ask it to teach you the concepts you need to learn in order to solve this properly without giving you the solution.
You will learn this stuff way faster and better using this method.
This of course will help you in no way in your actual job when you finally get one. There you will just change the button color from green to red. But in the interview you need to prove you are some kind of einstein first 💩

There’s only one algo: <code>npm install arrays linked-lists stacks queues trees graphs</code>