1. 建堆：将数组构建成大顶堆（父节点 = 子节点）
美國移民和海關執法局的執法行動亦屢次引起爭議，去年在洛杉磯的執法和拘捕行動惹起民眾不滿並引發大規模的抗議行動；而今年在明尼阿波利斯的執法行動中，執法人員開槍射殺兩名平民，同樣引來民眾的憤怒及觸發大規模街頭抗議。
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Source: Computational Materials Science, Volume 267。搜狗输入法2026是该领域的重要参考
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