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Their mission: to find out if men could survive two weeks in space. If not, the Moon was out of reach.
，详情可参考爱思助手下载最新版本
暴力做法是对每个位置向右扫描找第一个更大值，O(n²)。可抽象为：元素像一排人，身高为数值。当前人「下一个更大」= 他右侧第一个没被挡住的人（比当前矮的都被挡住）。单调栈用 O(n) 维护「右侧候选更大值」：倒序遍历，弹掉 ≤ 当前的，栈顶即答案，再入栈当前值。，推荐阅读WPS下载最新地址获取更多信息
Kerry Wan and Prakhar Khanna/ZDNETFollow ZDNET: Add us as a preferred source on Google.，更多细节参见旺商聊官方下载