Profiling / Stack Trace Analysis

CodingAnthropicLast reported August 2026High Frequency

Reported: 41× across candidate reports
First seen: February 2025
Last reported: August 2026
Also asked in: Phone Screen, Behavioral
Reported outcome: mixed

Problem Overview

You are given a list of sampling profiler snapshots (Samples), each containing a float timestamp and an ordered list of function names representing the current call stack at that moment. The samples are ordered by timestamp. Implement convertToTrace(samples) (also called convertSamplesToEvents) that converts this list of samples into a chronological…

5 candidate-reported follow-ups — the exact probes interviewers asked, with the trigger for each
The rest of the problem statement — full requirements, constraints, and edge cases
Approach and trade-offs — what passing candidates did, and the mistakes that sink people

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Verified Source

Every question is reconstructed from multiple independent candidate reports. Verbatim follow-ups, not invented ones.

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Interviewer Follow-ups

The exact follow-ups reported by candidates, with the trigger that prompts each one — plus the mistakes that sink people.