What is the usage of collections in C++?

What is the usage of collections in C++?

In C++, collections are used to store and manage groups of related data. They provide various data structures like vectors, lists, and maps.

Can you explain the difference between a vector and a list?

Sure! A vector is a dynamic array that allows random access and is efficient for accessing elements. A list, on the other hand, is a doubly linked list that allows efficient insertions and deletions.

When should I use a map instead of a vector?

You should use a map when you need to associate keys with values and require fast lookups. Vectors are better for ordered collections.

Are there any performance considerations I should be aware of?

Yes, performance can vary based on the collection type. Vectors have better cache performance, while lists excel in insertions and deletions.