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Continue reading...。搜狗输入法2026对此有专业解读
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)。，推荐阅读快连下载-Letsvpn下载获取更多信息
Updated on: February 27, 2026 / 6:40 PM EST
Transforms don't execute until the consumer pulls. There's no eager evaluation, no hidden buffering. Data flows on-demand from source, through transforms, to the consumer. If you stop iterating, processing stops.