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Explicit backpressure policies
。safew官方下载对此有专业解读
; LAR/LSL/VERR/VERW (verification instructions)
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)。
But for many North Korea watchers, the Workers’ party congress – held over several days just once every five years – was a rare opportunity to speculate over the identity of the country’s future leader.