What this C++ language-knowledge question tests
This is an easy C++ question that probes your understanding of core language behaviour. You are asked to trace through a code snippet and predict its output or behaviour—a skill that matters in any interview where you need to reason precisely about what code does, especially when optimisation or correctness depends on subtle language semantics.
To solve problems like this, read the code carefully, track variable state and scope, and reason about operator precedence, type conversion, and control flow. Interviewers use these questions to verify that you know the language well enough to avoid bugs and to catch logical errors in your own work without running it first.
- Operator precedence and associativity
- Type conversion and promotion
- Scope and lifetime of variables
- Control-flow logic