This sounds reasonable until you see how easily it goes wrong:
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"Our family is devastated by the sudden passing of our beloved husband, father and grandfather," his family confirmed in a statement.
（二）违反规定，在场内燃放烟花爆竹或者其他物品的；
* 核心思路：找初始无序边界 + 计算区间最值 + 扩展边界