This lesson teaches students how real C++ data structures are written — using templates to eliminate repetition, improve scalability, and support multiple data types with a single design. It bridges the gap between basic C++ syntax and professional-level programming, preparing learners for STL, advanced data structures, and real-world C++ codebases. ────────── ⋆⋅☆⋅⋆ ────────── 🧠 What Students Will Actually Master ✨✨ ✏️ What templates are and why they exist✏️ How generic programming re