how does RE# find the leftmost-longest match efficiently? remember the bidirectional scanning we mentioned earlier - run the DFA right to left to find all possible match starts, then run a reversed DFA left to right to find the ends. the leftmost start paired with the rightmost end gives you leftmost-longest. two linear DFA scans, no backtracking, no ambiguity.
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17-летнюю дочь Николь Кидман высмеяли в сети за нелепую походку на модном показе20:47，更多细节参见体育直播
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