思路：单调递减栈，找「上一个比当前价格大的元素索引」。正序遍历，弹出所有 ≤ 当前价格的索引；跨度 = 当前索引 - 栈顶索引（栈空则为 当前索引 + 1）。
The perpetrator of the shooting had their ChatGPT account suspended in June 2025 after OpenAI detected content from the user that presented "an indication of potential real-world violence." OpenAI banned the user and considered alerting authorities. However, OpenAI decided not to inform law enforcement after determining that the user had no credible plan to act out.
。safew官方版本下载对此有专业解读
Trade between the EU and two South American countries may start within two months under a provision application of the deal
提姆·多格特（Tim Doggett）是英國化學企業協會（Chemical Business Association）的執行長，該協會代表從製造商到分銷商、運輸商與貿易商的整個化學品供應鏈，他同時也是英國貿易協會論壇（Trade Association Forum）的董事。