Data Structures Explained For Beginners How I Wish I Was Taught

Data structures are essential for coding interviews and real-world software development. In this video, I’ll break down the most important data structures, how they work, and their time complexities—with simple, real-world examples to make them easy to understand!. . ✉️ TECH NEWSLETTER. Stay competitive in tech with my newsletter! Discover the latest tech trends shaping the industry, unlock career tips u0026 advance to propel your growth, and access exclusive resources to enhance your skills and knowledge. . → https://sajjaad.substack.com/. . 🏆 INTERN SUCCESS ACADEMY. The COMPLETE Program for landing an internship at a top tech company in which I help you PERFECT your resume, linkedin, behavioral interview, and technical skills. → https://sajjaad-s-site.thinkific.com/courses/land-tech-job. . 🧑‍💻 LEARN TO CODE. Learn to code with bite-sized projects and an AI-bot to help answer your queries. I recommend you start with their python module, then check out java and javascript.. → https://coddy.tech/ (It’s FREE, but you can use the code SAJYT for 20% off of premium features!). . 📄 FREE RESUME REVIEW. → https://sajjaad-s-site.thinkific.com/courses/land-tech-job. . 🍿 WATCH NEXT. If I Wanted a Software Engineering Internship in 2025, I’d Do This. https://youtu.be/yUQbl9J3kJU?si=PLOfpBg1ZGT7zMjU. . ⬇️ MY OTHER SOCIALS:. 📸 Instagram: https://www.instagram.com/sajjaad.khader/. 📱 TikTok: https://www.tiktok.com/@sajjaadkhader. 🌍 My website: https://sajjaad-s-site.thinkific.com/courses/land-tech-job. . 0:00 – Why Data Structures Matter. 0:29 – Big O Notation Explained. 1:12 – O(1) – The Speed of Light . 1:46 – O(n) – Linear Time . 2:30 – O(n²) – The Slowest Nightmare . 3:13 – O(log n) – The Hidden Shortcut . 4:20 – Arrays. 5:52 – Linked Lists . 7:17 – Stacks. 8:28 – Queues. 9:30 – Heaps. 10:52 – Hashmaps. 12:39 – Binary Search Trees. 13:41 – Sets. 15:19 – Next Steps u0026 FAANG LeetCode Practice