堆排序总结
摘要:堆排序 概念: 第一个非叶子节点: 小于size/2的部分; 非叶子节点的区间: [0, size/2); (注意是左闭右开) 最大堆:满足父节点head, arr[head]<=arr[2*head+1] && arr[head]<=arr[2*head+2] 非叶子节点的子树才需要调整(没有子节
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