* 时间复杂度：O(n log n)（主要来自排序），空间复杂度：O(n)
Что думаешь? Оцени!
，这一点在体育直播中也有详细论述
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another good example is searching through paragraphs (below), which contain some combination of keywords. here the important part is ~(_*\n\n_*), or “does not contain two consecutive newlines”, in other words, the boundary of a paragraph, so it matches paragraphs! then you can combine it with any other regex to find paragraphs that contain certain keywords, but not others. this is very hard to do with traditional regexes without writing a complex and fragile pattern that tries to match the entire paragraph structure.。关于这个话题，体育直播提供了深入分析