Warm greetings! This lesson introduces data streams, which are essentially continuous datasets. Think of a weather station or a gaming application gathering data per second — both are generating data streams! We will master handling these data streams using C++, learning to access elements, slice segments, and even convert these streams into strings for easier handling.

In C++, data streams can be represented using vectors and maps from the STL (Standard Template Library). Let’s consider a straightforward C++ class named DataStream. This class encapsulates operations related to data streams in our program:

To use it, we create a sample data stream as an instance of our DataStream class, where each element is a map: