Building a result set

What this C++ language-knowledge question tests

This is an easy question that probes your ability to trace the behaviour of a C++ program and predict its output correctly. It rewards attention to detail around syntax, type semantics, and control flow.

To answer questions like this, you need to mentally execute the code step by step, paying close attention to how variables are declared, initialized, and modified. The question also tests whether you understand the subtle differences in how C++ handles certain operations—the kind of thing that can trip up even experienced developers in a live-coding setting. Getting these fundamentals right is table stakes in any technical interview, particularly at firms where code correctness is non-negotiable.

• Variable scope and lifetime
• Type conversion and implicit casts
• Control flow and loop mechanics