输入：nums = [2,1,2,4,3]
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将在2027年底前推出约40款新车，以此完善基于Neue Klasse新世代平台的产品阵容，全新纯电iX3为该阵容的核心车型。
The Pancake Local Group: Here are found most of the conventional breakfasts, pancakes, crepes, waffles, and all of their international variants. Space here is chaotic, fractal. Any slight deviation from your recipe in this region is likely to produce something else entirely. Breakfast here is metastable at best. (prior research on the pancake cluster)
每轮从未排序部分找到最小元素，放到已排序部分末尾