How can I use C++ standard containers effectively?

What are some advanced techniques for using C++ standard containers?

You can use techniques like custom allocators, move semantics, and emplace methods to optimize performance.

Can you explain how to use custom allocators with std::vector?

Sure! Custom allocators allow you to control memory allocation for your std::vector. You can define your own allocator class and pass it as a template parameter.

What are the benefits of using emplace_back over push_back?

Using emplace_back constructs the object in place, avoiding unnecessary copies, which can improve performance.

How do I choose the right container for my data structure?

Consider factors like data access patterns, memory usage, and performance requirements. For example, use std::vector for dynamic arrays and std::unordered_map for fast lookups.