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Hudson River Trading
Coding Question
AI Insights
Quick Summary
Simulate placing a piece on an n x n Reversi board at a specified coordinate.
Identify and flip opponent pieces in all 8 directions if they form a valid bounded sequence.
Return the updated board or the original if the move is invalid or flips no pieces.
What This Tests
Grid traversal and boundary validation
Multi-directional scanning logic
State mutation and conditional flipping
Index arithmetic for diagonal movement
Common Patterns
DFS/BFS
Graph Traversal
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Hint 1
Hint 2
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Acceptance Rate
43.8%
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Input
board =
row =
col =
player =
Output
Expected
