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!

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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 & FAANG LeetCode Practice