Giải thích Cấu trúc Dữ liệu cho Người mới bắt đầu - Ước gì Tôi được Dạy như Thế Này

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