识别信号
- Do you understand the importance of using a hash table to store visited nodes during graph traversal?
- Can you describe how to handle cycles when cloning a graph using DFS?
- Candidate identifies graph representation with adjacency lists.
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
- Not using a hash table to track cloned nodes, leading to cycles and duplicate clones.
- Failing to sort adjacency lists leading to incorrect lexical order.
- Forgetting to add the inverse edge 1/value, which breaks paths in DFS.
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