// 易错点5：忘记push当前索引 → 后续价格无法找到正确的上一个更大值，结果全错
A new study published in the British Ecological Society's journal People & Nature has found that these historic buildings are providing vital homes for the nocturnal animals.
，推荐阅读safew官方版本下载获取更多信息
ISS astronauts begin journey back to Earth in Nasa’s first ever medical evacuation
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）。