队列·driven·状态·processing 模式
6 道题目
模式页适合用来建立可复用解题框架。先识别题目特征，再按固定流程解释状态定义、转移和边界。
识别信号
- Candidate effectively demonstrates the ability to use a hash table for frequency counting.
- Candidate efficiently handles the queue to maintain order for character processing.
- The candidate understands how to implement a queue-driven solution for managing time-based state.
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
- Misusing a stack instead of a queue, which may lead to incorrect order processing of characters.
- Not handling edge cases where the time window is close to or exceeds 3000 milliseconds.
- Failing to simulate the reveal process in reverse order, leading to incorrect initial deck sequences.
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