Inline Initialization

Understanding inline initialization and lambda patterns in C++

This is an easy C++ language-knowledge question that tests whether you understand how modern C++ handles variable initialization, particularly the role lambdas can play in encapsulating setup logic at the point of declaration.

The question asks you to read and reason about a code snippet, predict its output, and explain the design choice behind the pattern shown. This surface-level task actually probes deeper: do you grasp why a programmer might defer computation into a lambda invoked immediately at initialization time, rather than assigning a simple literal or calling a function inline?

• Variable scope and const correctness
• Immediately-invoked function expressions (IIFE) in C++
• Readability and intent signalling in initialization
• Encapsulation of temporary computation

Questions like this appear in screening rounds because they reveal whether you read C++ code fluently and think about why certain patterns exist, not just whether you know syntax.