（二）组织或者进行淫秽表演的；
As of Feb. 26, the Samsung Frame TV is on sale at Amazon, down from $1,197.99 to $897.99. That's $300 off, and its lowest price so far this year as per camelcamelcamel.
，详情可参考搜狗输入法2026
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* 核心思路：单调递减栈（找「上一个比当前价格大的元素索引」），时间复杂度O(n)，空间复杂度O(n)