What are collections in C++?

Can you explain what collections are in C++?

Sure! In C++, collections refer to data structures that store multiple items. Common types include arrays, vectors, lists, and maps.

What is the difference between a vector and a list?

A vector is a dynamic array that allows random access, while a list is a doubly linked list that allows efficient insertions and deletions.

When should I use a map instead of a vector?

Use a map when you need to associate keys with values for fast lookups, while a vector is better for ordered collections.

Can you give me an example of using a collection in C++?

Certainly! Here's a simple example using a vector:

#include <vector>
#include <iostream>

int main() {
    std::vector<int> numbers = {1, 2, 3, 4, 5};
    for(int num : numbers) {
        std::cout << num << " ";
    }
    return 0;
}