What this C++ type-conversion question tests
This is an easy question that probes your understanding of implicit type conversions and how C++ handles expressions involving mixed numeric types. It rewards careful reading of code semantics over rote memorization of conversion rules.
To solve questions like this, you need to trace through the code mentally, identify where type conversions occur, predict the output or error message, and reason about whether the code compiles and runs as written. Interviewers use these to verify that you can reason about type safety and operator precedence without a compiler in front of you—a practical skill in whiteboarding and code review.
- Implicit conversions between numeric types
- Operator precedence and associativity
- Compile-time vs. runtime errors