The U.S. benchmark for crude oil rose from about $67 to $71 per barrel on March 2. But it started the year at $57 per barrel and has steadily risen because of escalating U.S.-Iran tensions.
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.
，这一点在体育直播中也有详细论述
'This issue concerns us' — Zelensky warns Middle East war could strain Ukraine air defense supplies
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