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）。
Friends of the Earth, a campaign group, said if all of those data centres came online, "they could consume more electricity each day than the entire country does now".
，这一点在Line官方版本下载中也有详细论述
A game played on a turning wicket and dominated by spin was decided, appropriately, after a decisive, savage twist. Just as it looked as if England’s unconvincing progress through the World Cup was the one thing destined to remain on its predictable path Rehan Ahmed and Will Jacks spun the game, and the group, in their team’s favour.
The solution to today's Connections #992 is...
（十三）剪接、删改、损毁、丢失办理治安案件的同步录音录像资料的；