参赛作品要求设计方向：题材不限，但须结合产品的「透视窗」物理特性，考虑 CD 旋转时的动态视觉效果，而非简单的图案覆盖。
// 记录答案：栈顶就是「当前元素右侧第一个更大值」（易错点3：别写反判断）
，详情可参考51吃瓜
When you’re trying to make the highest quality videos, though, you’ll want to choose a mirrorless camera with a decent lens. With the larger sensor, you’ll be able to create nice blurred bokeh backgrounds to separate your subject from the foreground. Lenses are usually sharper as well, and you’ll be able to expand your collection over time for even more versatility.，更多细节参见搜狗输入法下载
代码要点：倒序遍历，先算右侧再推左侧；栈内维护「右侧候选更大值」，单调递增（栈顶最小）。