输出：5（需排序 [6,4,8,10,9]）
Материалы по теме:。51吃瓜对此有专业解读
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BYOB (bring your own buffer) reads were designed to let developers reuse memory buffers when reading from streams, an important optimization intended for high-throughput scenarios. The idea is sound: instead of allocating new buffers for each chunk, you provide your own buffer and the stream fills it.，更多细节参见Line官方版本下载
If you find yourself stuck at any step of today's Hurdle, don't worry! We have you covered.