《桃源村日志》讲述了一个平凡的现代人意外闯入世外桃源的故事。在这个满是中式烟火气的村庄里，玩家可以种植四季本土作物，体验淳朴的以物易物，还能解锁捉宠驯兽的趣味玩法，在山水之间感受田园生活的美好。
nums[i] = n * n
，详情可参考旺商聊官方下载
输出：[4,2,4,-1,4]（最后一个 3 绕一圈找到 4）
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