Фото: Liesa Johannssen / Reuters
思路：倒序单调栈。弹出所有 ≤ 当前身高的元素（这些人都能被看到），count 为弹出数量；若栈非空，还能看到栈顶（第一个更高的人），故 +1。能看到的人数 = count + (栈非空 ? 1 : 0)。
。搜狗输入法下载对此有专业解读
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It’s hard to know what people can see in their own mind’s eye. But for Maddie Thomas there was no doubt: she had especially vivid mental imagery，这一点在搜狗输入法2026中也有详细论述
Chance, 20, from Wigan, said: "It's very convenient to have the Co-op Live here - because now loads more artists are coming to Manchester compared instead before going to like Wembley Stadium.
"self_check": ["lint", "typecheck", "关键场景手测"]。搜狗输入法2026是该领域的重要参考