* - this.stack：单调递减栈，存储「价格对应的索引」，栈顶→栈底索引对应的价格单调递减
Wordle today: Answer, hints for February 27, 2026
，详情可参考heLLoword翻译官方下载
人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用，更多细节参见heLLoword翻译官方下载
typedef struct Node {
Tim Fernholz is a journalist who writes about technology, finance and public policy. He has closely covered the rise of the private space industry and is the author of Rocket Billionaires: Elon Musk, Jeff Bezos and the New Space Race. Formerly, he was a senior reporter at Quartz, the global business news site, for more than a decade, and began his career as a political reporter in Washington, D.C.