C++ STL Set Full Tutorial ✅ | Unique Sorted Data, insert(), erase(), find() | short | SACHIN SHARMA

Welcome to another episode of STL in C++! In this video, we explore the set container — a powerful data structure that automatically stores unique and sorted elements. You’ll learn how to declare, insert, erase, and iterate through sets with real examples and use cases.

✨ Highlights:

What is a set in STL?

Why are elements always unique and sorted?

Difference between set and unordered_set

Time complexities and interview relevance

🎯 Ideal for beginners and intermediate programmers, especially if you're preparing for competitive programming or coding placements.