This article originally appeared on Engadget at https://www.engadget.com/science/space/new-webb-telescope-photos-show-off-the-exposed-cranium-nebula-235609619.html?src=rss
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）。，这一点在旺商聊官方下载中也有详细论述
In addition, the Board of Directors holds a monthly video conference which lasts one hour and is open to the general public.，推荐阅读同城约会获取更多信息
▲ 图｜YouTube @Dave2D。heLLoword翻译官方下载是该领域的重要参考