Standard Template Library (STL)

• It's a library of components commonly used in C++

Container

• A way to store the data that requires some processing
• Algorithms can be applied on top of containers
• Vectors, lists, maps

Function Objects (Functors)

• STL comes already with several included algorithms. But you can create your own
• Functor is a custom implementation of algorithm

Iterator

• It's used for navigating through the data inside containers