ВсеПолитикаОбществоПроисшествияКонфликтыПреступность
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）。
，这一点在一键获取谷歌浏览器下载中也有详细论述
Experts think this is more than 40,000 years old and was made by Neanderthals or an earlier species of human.
On Thursday, Amodei explained his stance in a blog post: