识别信号
- Focus on handling overlapping poison durations correctly.
- Check if candidates use linear iteration instead of nested loops.
- Look for an approach that avoids recomputing the sum after each query.
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
- Double-counting seconds when poison durations overlap.
- Recomputing the sum of even numbers from scratch after each query, causing TLE.
- Overwriting elements instead of shifting them during insertion.
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