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This question evaluates graph search and state-space reasoning by requiring shortest-path computation in a constrained one-dimensional maze with collectible keys and lockable doors, assessing skills in BFS, state encoding, and handling dynamic traversal constraints; Category: Coding & Algorithms.

  • medium
  • Meta
  • Coding & Algorithms
  • Software Engineer

Solve a Key-Door Corridor Maze

Company: Meta

Role: Software Engineer

Category: Coding & Algorithms

Difficulty: medium

Interview Round: Onsite

Quick Answer: This question evaluates graph search and state-space reasoning by requiring shortest-path computation in a constrained one-dimensional maze with collectible keys and lockable doors, assessing skills in BFS, state encoding, and handling dynamic traversal constraints; Category: Coding & Algorithms.

Last updated: May 23, 2026
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