Code reviewMediumcr-g060

Subject Off by oneLevel Mid–Senior~20 minCommon in Algorithms & data structures interviewsIndustries Software development

Question

Review this C++ function that reverses an array in place.

What a strong answer looks like

Separate real bugs from style. Rank issues by severity, point at the root cause rather than the symptom, and suggest a concrete fix — specific and kind.

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Talk through your review

Code to reviewcpp

1void reverse(int* a, int n) {2    for (int i = 0; i <= n / 2; i++) {3        std::swap(a[i], a[n - 1 - i]);4    }5}

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