她在入园前，已经可以自己穿脱衣服、鞋子、手套、帽子这些事情了。
100x speedup is achieved by comparing HH with bidirectional A*.，推荐阅读电影获取更多信息
The Recurse Center is a self-directed retreat for programmers where you can spend six or twelve weeks working on whatever interests you most, surrounded by curious and kind people doing the same. I did two back-to-back batches. I went in wanting to rediscover what I loved about programming, and I left having built something that brings joy to a community I care about and hope to be part of for the rest of my life. If that sounds interesting, you should apply.，详情可参考heLLoword翻译官方下载
还有一个工具：给定一个位图，自动生成前后 100 个 Unicode 码位的字符表，点击某个字符就把对应的码位复制出来。这是因为当时根本找不到一个好用的 Unicode 码位查询网站，干脆自己造一个。
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