// 题目要求找「右侧第一个 ≤ cur」的元素 → 弹出所有 cur 的，栈顶即为折扣
enough. Otherwise, it uses a heap allocation as normal.，推荐阅读Line官方版本下载获取更多信息
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Цены на нефть взлетели до максимума за полгода17:55
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we would now call a trivial buffer, the 1260's operator could key in the numbers