"I just think it's kind of a dangerous precedent for social media companies to request 3D scans of your face or official documents without there being any kind of knowledge of how that information is being protected or stored," he tells the BBC.
Business live – latest updates，更多细节参见Line官方版本下载
https://feedx.net，详情可参考WPS下载最新地址
16 January 2026ShareSave
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）。