Word Pattern Matching / Word Storage API with Pattern Matching

Phone ScreenSnowflakeLast reported May 2025Low Frequency
Reported
1× across candidate reports
First seen
May 2025
Last reported
May 2025
Reported outcome
unknown

Problem Overview

This question has two parts: Part 1 – Pattern Matching: Given a word (string of letters) and a pattern consisting of letters and '?' wildcards, where each '?' matches exactly one arbitrary letter, determine whether the word matches the pattern. The word and pattern must have the same length, and…

  • 3 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.
Codex Fact-Checked
Technical claims, formulas, and scale numbers are reviewed against primary sources.
Interviewer Follow-ups
The exact follow-ups reported by candidates, with the trigger that prompts each one — plus the mistakes that sink people.
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