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)。
But what if it’s not fine? Even back in 1996, before a single component of the ISS was launched into orbit, NASA foresaw the possibility of an even worse worst-case scenario: an uncontrolled reentry. The crux of this scenario involves multiple systems failing in an improbable but not completely impossible cascade. Cabin depressurization could damage the avionics. The electrical power system could go offline, along with thermal control and data handling. Without these, systems controlling coolant and even propellant could break down. Unmoored, the ISS would edge slowly toward Earth, maybe over a year or two, with no way to control where it is headed or where its debris might land. And no, we could not save ourselves by blowing the station up. This would be extremely dangerous and almost certainly create an enormous amount of space trash—which is how we got into this hypothetical mess in the first place.
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[cal]: https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=202520260AB1043
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const origAddSB = MS.prototype.addSourceBuffer;
一個關於外交政策的章節中有一部分專門提到委內瑞拉,雖未明確要求推翻馬杜羅(Nicolás Maduro)政權——而特朗普政府今年稍早已採取此行動。,这一点在safew官方下载中也有详细论述