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The same study reveals a 32% drop in women at managerial level after having children.
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Now, genetic evidence has revealed a striking imbalance in these prehistoric trysts, suggesting that interbreeding was mostly between male Neanderthals and female humans.
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)。