Down shift

What this C++ code-reading question tests

This is a medium-difficulty question that asks you to trace through a C++ code snippet and predict its output. It is common in technical interviews to assess whether a candidate can reason carefully about language semantics, operator precedence, and control flow without running the code.

Questions of this type reward attention to detail: understanding how operators interact, how variables change state, and what conditions trigger which branches. In the context of a quant interview, this tests both your C++ fluency and your ability to think through code execution mentally—a skill that matters when debugging complex numerical algorithms or trading systems under time pressure.

• Operator precedence and associativity
• Variable scope and mutation
• Control-flow logic and conditional statements
• Output stream formatting