The ternary operator is a powerful tool that often used to make quick decisions in your code and can greatly improve code readability when used appropriately.

The ternary operator in C++ is written in the following form:

The condition is evaluated. If the condition is true, the expression before the ? is executed, otherwise, the expression after the : is executed.

The ternary operator is essentially just an alternative to the if-else statement, providing the code readability and convenience.

As you can see it using ternary operator can save code space and improve readability and efficiency. However, it is important to save a balance and maintain code maintainability and understandability.

Ternary operators can also be nested to handle more complex conditions. But don't fall into a pitfall full of ternary operators like this:

It's really hard to understand what is going on. So it is better to limit yourself to a single ternary operator, with a maximum of one level of nesting at any given time.