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Unsigned Integer Overflow is a easy quant interview question on language knowledge in Cpp.
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This is an easy C++ language-knowledge question that probes your understanding of how unsigned integers behave at the boundary of their representable range. It's a foundational topic for systems programming and low-latency trading code, where unexpected wraparound can silently corrupt logic.
To answer correctly, you need to know the C++ standard's guarantee about unsigned arithmetic: overflow is well-defined and wraps predictably modulo 2^n, where n is the bit width. Signed integer overflow, by contrast, is undefined behaviour. This distinction matters when writing robust financial code.