What are iterators in C++11 and how do they work in different containers?

Can you explain what iterators are in C++11?

Sure! Iterators are objects that allow you to traverse through the elements of a container, like arrays or lists, in C++11.

How do iterators work with different containers like vectors and lists?

In C++11, iterators provide a uniform way to access elements in various containers. For example, a vector's iterator allows you to access elements sequentially, while a list's iterator can be used to traverse its elements as well.

Are there different types of iterators in C++11?

Yes, C++11 has several types of iterators: input iterators, output iterators, forward iterators, bidirectional iterators, and random access iterators, each serving different purposes.

Can you give an example of using an iterator with a vector?

Certainly! Here's a simple example:

std::vector<int> vec = {1, 2, 3, 4, 5};
for (auto it = vec.begin(); it != vec.end(); ++it) {
    std::cout << *it << ' ';
}

This code prints each element in the vector.