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This question evaluates algorithm design and data structure competency, emphasizing state representation, time-space trade-offs, and techniques for achieving constant-time updates in a two-player n×n Tic-Tac-Toe engine.

  • medium
  • Decagon
  • Coding & Algorithms
  • Software Engineer

Design a Tic-Tac-Toe Engine

Company: Decagon

Role: Software Engineer

Category: Coding & Algorithms

Difficulty: medium

Interview Round: Technical Screen

Quick Answer: This question evaluates algorithm design and data structure competency, emphasizing state representation, time-space trade-offs, and techniques for achieving constant-time updates in a two-player n×n Tic-Tac-Toe engine.

Last updated: Jun 19, 2026
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