Understanding code output in C++
This is a medium-difficulty code-reading question that tests whether you can trace through a C++ snippet and predict its output accurately. It rewards careful attention to language semantics, operator precedence, and type behavior—the kind of precision that matters in production trading systems.
To solve problems like this, work through the code line by line, paying close attention to how variables are initialized, how operators interact, and what implicit conversions or side effects occur. The goal is not to run the code mentally at speed, but to reason systematically about each step and catch subtle details that change the result.
- Type coercion and implicit conversions
- Operator precedence and associativity
- Order of evaluation and side effects
- Output stream formatting and defaults