; LAR/LSL/VERR/VERW (verification instructions)
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。safew官方版本下载是该领域的重要参考
Hurdle Word 1 hintA thin atmospheric layer.
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// 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