```cpp
size= n ;
for (int i= n/ 2; i>= 1; i-- ){
down(i) ;
}
```
by WZY718605 @ 2024-02-20 19:24:35
@[wjx38223](/user/902704)
by WZY718605 @ 2024-02-20 19:25:11
这下明白了,for里面的条件是 i和>=1貌似都可以,是我size=n放错位置了QWQ,再次感谢学长orz\orz\orz!
by wjx38223 @ 2024-02-20 20:43:53