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。
"Families have described to me good experiences, terrible experiences. It is patchy, it is inconsistent and what this investigation is about, is trying to find out the things that move us from poor and bad to good and excellent.
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Where quadtrees appear
"pinned": false,