How can I create custom data structures in C++ using the standard library?

How can I create custom data structures in C++ using the standard library?

You can create custom data structures in C++ by utilizing classes and the STL containers like vector, list, and map. Would you like an example?

Yes, please provide an example of a custom structure.

Sure! Here's a simple example of a custom structure using a class to represent a point in 2D space:

class Point {
public:
    int x, y;
    Point(int x, int y) : x(x), y(y) {}
};

You can then use a vector to store multiple points:

std::vector<Point> points;
points.emplace_back(1, 2);
points.emplace_back(3, 4);

How do I implement methods for this structure?

You can add methods to the class to perform operations. For example, you could add a method to calculate the distance from another point:

double distance(const Point& other) {
    return sqrt(pow(x - other.x, 2) + pow(y - other.y, 2));
}

Can I use this structure with STL algorithms?

Absolutely! You can use your custom structure with STL algorithms like std::sort by defining comparison operators. Would you like to see how?