Трамп высказался о непростом решении по Ирану09:14
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）。
。旺商聊官方下载对此有专业解读
Wastewater treatment tanks and other infrastructure emit larger amounts of greenhouse gases than reported.
Dr Bramall said the BMA had not had an opportunity to negotiate with the government about the changes.