How'd you read this?

What this C++ code-reading question tests

This is an easy code-reading question that checks your fluency in C++ syntax and semantics. Rather than asking you to write code from scratch, it presents a concrete snippet and asks you to trace its execution—a skill that matters in both interview settings and real debugging work.

To answer questions like this, you need to parse operator precedence, understand how the C++ standard library behaves, and mentally execute the code step by step. The focus is on reading comprehension: can you confidently predict what a piece of unfamiliar code will do without running it?

• Operator precedence and associativity
• Standard library function behaviour
• Type conversions and implicit casts