C++20 sections · 1024 units
Open in Course

Section Recap

What we learned

You now use vectors and basic STL containers.

1.1. Vectors grow and shrink automatically

2.2. push_back adds elements, pop_back removes them

3.3. size() returns the count, empty() checks if empty

4.4. Vectors replace arrays in most C++ code

Good job. You have dynamic storage now. Next, you will learn maps and sets for fast lookups.