What are the basics of iterators in C++?

What are the basics of iterators in C++?

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

Can you explain the different types of iterators?

Sure! There are several types: input iterators, output iterators, forward iterators, bidirectional iterators, and random access iterators.

What is the difference between a forward iterator and a random access iterator?

A forward iterator can only move in one direction (forward), while a random access iterator can move both forward and backward and allows direct access to any element.

How do I use iterators with a vector?

You can use iterators with a vector by calling the begin() and end() methods to get the start and end iterators, then use a loop to traverse the elements.