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)。
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Finch said the surgeon wanted her to have the implant washed and put back in, but she said she just wanted to return home to her children.
savings account, where transactions were so infrequent that the bank recorded，更多细节参见快连下载安装
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Дания захотела отказать в убежище украинцам призывного возраста09:44