Мужчина ворвался в прямой эфир телеканала и спустил штаны20:53
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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Most entrepreneurs in my study were avid exercisers. They understood that exercise, especially aerobic exercise, helped boost brain performance and their energy levels, allowing them to weather those long work days.