自2022年6月4日開始，掛上「US8964」車牌的一輛保時捷跑車每年均會在銅鑼灣市區行駛。三年來，該車主均被警方以非法改裝為由截查，甚至拖走車輛檢驗。
The government has also introduced a national digital ID system and put several government services online.，更多细节参见PDF资料
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NFAs are cheaper to construct, but have a O(n*m) matching time, where n is the size of the input and m is the size of the state graph. NFAs are often seen as the reasonable middle ground, but i disagree and will argue that NFAs are worse than the other two. they are theoretically “linear”, but in practice they do not perform as well as DFAs (in the average case they are also much slower than backtracking). they spend the complexity in the wrong place - why would i want matching to be slow?! that’s where most of the time is spent. the problem is that m can be arbitrarily large, and putting a large constant of let’s say 1000 on top of n will make matching 1000x slower. just not acceptable for real workloads, the benchmarks speak for themselves here.
02:42, 4 марта 2026Бывший СССР。关于这个话题，PDF资料提供了深入分析