识别信号
- The candidate should understand how to efficiently traverse the matrix using graph-like techniques such as topological sort.
- Look for a clear explanation of how DFS with memoization avoids recalculating paths.
- The candidate demonstrates proficiency in dynamic programming and graph traversal.
解题流程
- 1. 明确窗口/状态定义
- 2. 更新状态并维护约束
- 3. 用边界样例验证
常见失分点
- Ignoring boundary conditions and invalid moves (e.g., out-of-bound or non-increasing paths).
- Not considering bitmasking as an efficient way to track visited nodes.
- Failing to account for the Cat cannot move to node 0, breaking correct state transitions.
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