C++ STL Containers and Algorithms

Combine containers, iterators, and algorithms to write expressive code with less manual looping. The STL is one of C++'s biggest advantages — and most developers only use 20% of it. In ~12 minutes you'll learn to combine containers and algorithms the way they were designed to be used: composable, readable, and without hand-written loops everywhere. ─── What You'll Learn ─────────────────────────────────────── ✔ std::vector as the default container — and when to reach for others ✔ Finding and counting elements without writing loops ✔ Transforming ranges with std::transform ✔ Filtering and aggregation patterns ✔ The erase-remove idiom (and why you need it) ✔ Modern ranges form — cleaner syntax, same power ✔ Working with containers of objects using projections ✔ The next algorithms worth knowing: sort, partition, accumulate, any_of ✔ Common algorithm mistakes and how to avoid them ─── Chapters ──────────────────────────────────────────────── 0:00 Intro 0:40 Start with std::vector 1:35 Find and count 2:24 Transform 3:10 Main lesson 4:02 Filtering and aggregation example 4:48 The erase-remove pattern 5:42 Modern ranges 6:31 Working with objects 7:24 Useful next algorithms 8:29 Common mistakes 9:25 What's next ─── Resources ─────────────────────────────────────────────── 📘 Modern C++ Complete Reference Handbook → https://cpp-handbook.cc ─── Series ────────────────────────────────────────────────── This video is Part 5 of the Complete C++ Guide — Intermediate Series. ◀ Previous: C++ Modern Memory Management ▶ Next: C++ Templates and Generic Code If this helped, subscribe — new videos drop every week.