What are the best practices for using containers in C++11?

What are the best practices for using containers in C++11?

In C++11, it's important to choose the right container for your needs. For example, use std::vector for dynamic arrays, std::list for linked lists, and std::map for key-value pairs.

When should I prefer std::vector over std::list?

You should prefer std::vector when you need fast random access and when the size of the container is known in advance. std::list is better for frequent insertions and deletions.

Are there any performance considerations I should be aware of?

Yes, std::vector has better cache performance due to its contiguous memory allocation, while std::list has overhead from storing pointers for each element.

What about using std::unordered_map?

std::unordered_map is great for fast lookups, as it uses a hash table. However, it has higher memory overhead compared to std::map, which is ordered.