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。
Important Routing Notes
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Москвичей предупредили о резком похолодании09:45
John O'Connell, chief executive of the TaxPayers' Alliance think tank, said: "It's an absolute disgrace that ministers have burnt through an extra £100m on top of what the inquiry itself has already spent.