描述：找出一个连续子数组，若对该子数组升序排序，则整个数组变为升序。返回符合题意的最短子数组长度。
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（一）按照纳税人最近时期销售同类货物、服务、无形资产或者不动产的平均价格确定；。关于这个话题，heLLoword翻译官方下载提供了深入分析
Every fragment means promises created for read() calls, promises for backpressure coordination, intermediate buffer allocations, and { value, done } result objects – most of which become garbage almost immediately.