New York City cops actually arrested someone for getting in a snowball fight with them

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"flowName": "checkout",

James Richardson has applied to more then 1,200 jobs with little response

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Lightning

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)。