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Double trouble? is a easy quant interview question on language knowledge in Cpp, asked at Nvidia.
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This is an easy C++ question that checks whether you understand language semantics at a foundational level. Nvidia and other firms use questions like this in screening rounds to verify that candidates can read and predict code behaviour accurately, without relying on a compiler.
The question asks you to trace through a code snippet and determine what it prints. Success requires careful attention to operator precedence, type behaviour, and any subtle language features at play. Even simple-looking code can hide a detail worth knowing.