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4 changes: 2 additions & 2 deletions 7.heapSort.md
Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@

## 1. 算法步骤

1. 创建一个堆 H[0……n-1];
1. 将待排序序列构建成一个堆 H[0……n-1],根据(升序降序需求)选择大顶堆或小顶堆

2. 把堆首(最大值)和堆尾互换;

Expand Down Expand Up @@ -254,4 +254,4 @@ function heapSort($arr) {
}
return $arr;
}
```
```