Code RoomLong accumulator boxing overhead

HardPrep Room Coding #1922

Long accumulator boxing overhead

Code reviewCode quality & reviewSenior–Staff~20 min

Review this Java method that sums a metric over millions of samples in a tight aggregation loop.

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.

0:00 of about 20 min

Mark a line and say what kind of problem it is.0 findings

1long sumLatencies(int[] samples) {

2 Long total = 0L;

3 for (int i = 0; i < samples.length; i++) {

4 total += samples[i];

5 }

6 return total;

7}

Which questions mattered is sealed until you submit. Telling you now would just be handing over the edge cases.