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spoof(hookedSet, origSet);

SpeedPro Nashville South. Credit: SpeedPro

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But as he hard launches his music career, the 21-year-old knows he can't escape his identity, so he might as well embrace it.

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思路：单调递减栈，找「上一个比当前价格大的元素索引」。正序遍历，弹出所有 ≤ 当前价格的索引；跨度 = 当前索引 - 栈顶索引（栈空则为 当前索引 + 1）。