DFA construction is O(2^m) in the worst case, where m is the size of the NFA. this is widely known in academic circles, but in practice, most people think well of DFAs because they are used in tools like grep that are optimized for the common case. but if you throw a large regex at them, they will blow up in size and become unusable. DFA matching is linear O(n) where n is the size of the input, and the constant is ~3-4 assembly instructions per character - faster than anything you could write by hand.
用产品经理的心态对待咖啡，不断迭代好喝的咖啡。公众号：咖啡平方
，更多细节参见体育直播
When is the March full moon?March's full moon will occur on Tuesday, March 3. Time and Date estimates it will peak at 6:37 a.m. ET.
This seems as far as I can tell a straightforward lie?