if (pending.length 0) yield [pending];
* 核心思路：单调递减栈（找「上一个比当前价格大的元素索引」），时间复杂度O(n)，空间复杂度O(n)，详情可参考51吃瓜
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Dorsey added that his company isn’t alone in reaching its conclusion on AI and predicted that others will follow.
What is the answer to Connections: Sports Edition today?Coaching decisions - EXTEND, FIRE, HIRE, PROMOTE