红星新闻消息，近日，有网友发布视频称，辽宁辽阳市辽阳县首山镇黑牛庄村内有工厂起火燃烧，数天未能灭火，且起火工厂冒出浓浓烟雾。
I use Python multithread to realize Quicksort. Quicksort is implement in a function. It is a recursive function.
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