需要索引（如算距离、下标）：栈存索引，用 nums[stack.at(-1)] 取值比较。
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。搜狗输入法2026是该领域的重要参考
16:39, 27 февраля 2026Экономика
Фото: U.S. Marine Corps / Lance Cpl. Tyler Forti
Shares in the payment company soared more than 25 percent in after-hours trading on Thursday as it announced it would shed more than 4,000 jobs from its 10,000-strong workforce.