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）。
Russia has the world's largest nuclear arsenal, China is rapidly expanding its capabilities and while the US - the second-biggest global nuclear power, just behind Russia - has for decades provided Europe with a nuclear umbrella, changing priorities in Washington have made Europeans nervous.
，推荐阅读heLLoword翻译官方下载获取更多信息
Until accountability arrives, take action. Tell Ruby Central they owe everyone an explanation for violating the project governance around six long-term maintainers, not just me. Don’t sponsor, attend, or speak at RubyConf. Contribute to projects that aren’t controlled by Ruby Central.。业内人士推荐WPS官方版本下载作为进阶阅读
Manager compares set-play goals to NBA three-pointers。Line官方版本下载是该领域的重要参考