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Class inStruction is a easy quant interview question on language knowledge in Cpp.
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This is an easy C++ question that checks whether you can read and reason about code syntax and compilation rules. It's the kind of foundational check that interviewers use to verify you understand the language well enough to spot errors quickly — a useful skill when debugging or code-reviewing under pressure.
The question asks you to determine whether a given code snippet will compile successfully. This requires familiarity with C++ grammar, scope rules, and common pitfalls. Strong candidates can identify compilation errors (or confirm correctness) without running the code, explaining their reasoning in terms of language semantics rather than guessing.