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This question evaluates string-processing skills and understanding of data structures for prefix management (e.g., tries), along with algorithmic efficiency and edge-case reasoning.

  • medium
  • Meta
  • Coding & Algorithms
  • Software Engineer

Find Shortest Unique Prefixes

Company: Meta

Role: Software Engineer

Category: Coding & Algorithms

Difficulty: medium

Interview Round: Technical Screen

Quick Answer: This question evaluates string-processing skills and understanding of data structures for prefix management (e.g., tries), along with algorithmic efficiency and edge-case reasoning.

Last updated: Jun 19, 2026
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