Express(absent)
Американские сенаторы захотели принудить Трампа прекратить удары по Ирану14:51，详情可参考heLLoword翻译官方下载
Спецборт МЧС прибыл в Азербайджан для эвакуации граждан РоссииТАСС: Спецборт МЧС России сел в Азербайджане для эвакуации россиян。同城约会是该领域的重要参考
Backtracking: everyone in the field knows that backtracking engines (PCRE, java, dotnet, javascript, PHP, ruby, python..) are bad because they are the poster child of denial of service attacks. O(2^n) match time complexity is not good. most backtracking implementations are a combination of clever optimizations duct taped to a very slow engine - for simple cases it works well, but using a pattern that is not affected by the optimizations, you get to see what the “real” worst-case behavior looks like.