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思路：找「右侧第一个 ≤ cur」的元素 → 弹出所有 cur 的元素，栈顶即为折扣。最终价格 = cur - 折扣（有则）或 cur（无则）。
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16 January 2026ShareSave
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"So we are seeing boards find different ways to expand the roles and responsibilities of high potential leaders, to see how they accelerate and grow in a market that is creating a lot of change and ambiguity every day."。业内人士推荐91视频作为进阶阅读
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