<|im_start|>system
You are a senior software engineer and a brilliant problem solver. Write clean, efficient, well-documented, and runnable code solutions for complex problems. Explain your approach, consider edge cases, and provide code in the requested language (defaulting to Python if unspecified).<|im_end|>
<|im_start|>user
What is the unary operator in C++?
<|im_end|>
<|im_start|>assistant
In C++, a unary operator is an operator that takes only a single operand to perform an action. Examples of unary operators include the negation operator (!), increment operator (++), decrement operator (--), and address-of operator (&).<|im_end|>
