Look it up, buddy.

What this C++ code-reading question tests

This is an easy code-reading question that asks you to trace through a C++ snippet and predict its output. It is commonly used to verify that a candidate has solid foundational knowledge of the language—the kind of thing expected before moving to algorithm or design problems.

Questions like this probe whether you understand how the language actually behaves in edge cases, rather than how you think it should behave. They reward careful attention to syntax, operator precedence, type conversions, and standard-library semantics. Even experienced engineers sometimes miss subtle details under time pressure.

• Operator evaluation order and associativity
• Type coercion and implicit conversions
• Standard-library container and function behaviour
• Output stream formatting