Available question text
Implement a Tic-Tac-Toe class for an n×n board that supports making moves and immediately reports whether a player wins; the key challenge is designing state (e.g., per-row, per-column and diagonal counters) to detect a win in O(1) time per move without scanning the whole board.
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Airwallex
Leetcode 348. Design Tic-Tac-Toe
Reported Oct 26, 2026 · 1 source report
SENIOR
Source snapshot: Nov 12, 2026
View sourceAmazon
Leetcode 348. Design Tic-Tac-Toe
Reported May 7, 2026 · 1 source report
SENIOR
Source snapshot: Nov 12, 2026
View sourceDatabricks
Leetcode 348. Design Tic-Tac-Toe
Reported Sep 1, 2026 · 12 source reports
JUNIOR, MID_LEVEL, SENIOR, STAFF
Source snapshot: Nov 12, 2026
View sourceMeta
Leetcode 348. Design Tic-Tac-Toe
Reported Dec 20, 2025 · 2 source reports
SENIOR, STAFF
Source snapshot: Nov 12, 2026