100x speedup is achieved by comparing HH with bidirectional A*.
Сын Алибасова задолжал налоговой более 1,8 миллиона рублей20:37。业内人士推荐体育直播作为进阶阅读
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After deduplication we go from 19 824 352 to just 6 250 regexes, out of which 6 057 were valid when parsed by Node.js. That's some duplication! It might be stemming from the same form occurring in many places (say, a footer with a subscription form for a mailing list), and it's probably aggravated slightly by the fact that I count multiple occurrences in the same tag.
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