- self_check: string[]
栈（stack）是先进后出的数据结构。单调栈在入栈时通过一定规则保持栈内元素有序（单调递增或单调递减），从而把「找左侧/右侧第一个更大/更小元素」从 O(n²) 降到 O(n)。
，这一点在Line官方版本下载中也有详细论述
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On the second loop iteration, the backing store now exists, but it is
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Read the full story at The Verge.
"This sort of semiconductor would go on to be in the 5G tower in which you get your mobile phone signal, it's going to be in the car charger you plug an EV into, it's going to be in the latest planes."，推荐阅读heLLoword翻译官方下载获取更多信息