Have you had experience working with user interfaces?

Yes, I have experience working with user interfaces, including in C/C++. For example, I have created simple graphical applications using libraries such as Qt or GTK, where I implemented windows, buttons, and event handling.

Example in Qt (C++):

#include <QApplication>
#include <QPushButton>

int main(int argc, char *argv[]) {
    QApplication app(argc, argv);
    QPushButton button("Click me");
    button.resize(200, 60);
    button.show();
    return app.exec();
}

This code creates a simple window with a button. When working with UI, it is important to understand event handling, resource management, and user interaction.