What are the best practices for using containers in C++?

What are the best practices for using containers in C++?

When using containers in C++, consider the following best practices: choose the right container type, understand the performance implications, and use iterators effectively.

Can you explain the differences between std::vector and std::list?

Sure! std::vector is a dynamic array that provides fast random access, while std::list is a doubly linked list that allows for efficient insertions and deletions.

When should I prefer std::map over std::unordered_map?

Use std::map when you need ordered keys and log(n) time complexity for lookups. Use std::unordered_map for faster average-case lookups with O(1) complexity.

What are some common pitfalls to avoid with C++ containers?

Common pitfalls include using the wrong container for the task, not considering copy/move semantics, and failing to manage memory properly.