识别信号
- Check if the candidate correctly identifies the need for two hash maps to track character mappings.
- Evaluate the candidate's ability to ensure bijective character mappings without conflicts.
- They may ask about handling large alphabets efficiently with hash maps.
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 checking for bijective mapping, which can cause mapping conflicts where multiple characters map to the same character.
- Forgetting to mark the end-of-word flag, causing search to fail on full words.
- Using a hash table can lead to excessive space usage for large inputs.
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