the dotnet version uses BDDs (binary decision diagrams) for the same purpose, which is the right call for UTF-16 where you have 65536 possible values. but for bytes, a flat bitvector is simpler, faster, and fits in four registers. no tree traversal, no cache misses, no allocations. the Solver type in resharp-algebra is basically a deduplicated store of these bitvectors - each unique character set gets a TSetId, and all operations go through the solver to maintain sharing.
据报道，伊朗红新月会警告，储油设施爆炸会导致大量有毒的碳氢化合物、硫化物和氮氧化物等进入大气和云层。这些大气污染物会使“降雨极其危险且呈强酸性”，这种酸雨可能导致皮肤化学灼伤并对肺部造成严重损害。该组织提醒，如果酸雨接触到皮肤，应使用冷水持续冲洗，并立即更换接触过酸雨的衣物，将其放入密封袋中。（新华社），这一点在wps中也有详细论述
«Все это очень подозрительно». В Венгрии вскрыли гигантские денежные потоки для Украины, которые шли непонятно куда08:21，更多细节参见谷歌
}How the Pieces Fit Together