需要索引（如算距离、下标）：栈存索引，用 nums[stack.at(-1)] 取值比较。
17 January 2025ShareSave
。业内人士推荐同城约会作为进阶阅读
Фото: Svetlana Vozmilova / Global Look Press
It's always a good deal when a TV drops to its best-ever price. For a limited time, the Samsung 55-inch QN80F Neo QLED 4K TV is $600 off. Yes, you read it right. As of Feb. 27, this impressive TV is on sale for its lowest-ever price, and the savings are big. This hefty discount takes the price down from $1,297.99 to $697.99, just shy of half off.