Путин провел телефонный разговор с президентом Ирана

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A man shot dead by a NSW police officer after he ran at him with two knives was not known to police, a coroner says, despite a “very unfortunate” claim to the contrary made by the assistant commissioner of the force immediately after the incident.

Оказавшиеся в Дубае российские звезды рассказали об обстановке в городе14:52

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知识理解与辅助笔记:Gemini + Claude Code日常对于知识的辅助理解与探讨,我会侧重于用网页版 Gemini;在 Obsidian 记笔记时,我则侧重于使用 Claude Code。

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Lazy DFAs (2010) are a clever optimization to mitigate the O(2^m) blowup of DFA construction, by only constructing the states that you actually visit. lazy DFAs reduce the theoretical automata construction time to either O(2^m) or O(n), whichever is lower. you could argue that it’s theoretically no longer linear time, since you could have a regex that creates a new state for every character in the input, but in practice you will keep revisiting the same states. for all intents and purposes it behaves more like O(n) with some initial wind-up time. the main downside of lazy DFAs is that they are more complex to implement, and you have to ship a compiler as part of your regex algorithm. i want to highlight Rust regex and RE2 as excellent implementations of this approach, which you can also see in the benchmarks.