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）。
Here’s how to build a customer-funded startup and grow on your own terms before bringing investors to the table.
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报道指出，该项目意味着蜜雪冰城正在进军文旅赛道。
CRDF maintains a dedicated false positives form requiring no account creation. I submitted details and received a response the next morning: