but there’s a problem with the classical formulation. the derivative takes a regex and a character, so to build a state machine you need to compute it for every possible character to get all transitions from a given state. sure, you can compress the number of characters into equivalence classes before, but you still have to compute for each equivalence class - and many of them end up leading to the same state anyway. for example, the regex abc (below) cares about a, b, c, and “everything else”, which brings us down from 65536 to 4 in UTF-16, but for the first node (abc) even b and c behave the same as “everything else”. so what are we computing these for? in other words, there is something left to improve here.
尽管澳大利亚警方并未确认纳维德·阿克拉姆是否合法持有枪支，但据这位同事表示，纳维德经常外出打猎，曾提及在昆士兰州南部高原的克鲁克韦尔附近射杀兔子和其他猎物。这位同事还表示，就在几周前，纳维德告诉老板，他的手骨折了，所以要到2026年才能工作。。新收录的资料对此有专业解读
，更多细节参见新收录的资料
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