@[Wf_yjqd](/user/526094)
**sqrt**可以换成
```
int t;
t=a[i];
a[i]=a[i+1];
a[i+1]=t;
```
by jacy1949 @ 2023-04-18 19:54:16
？您是想说 `swap` 吧
by Wf_yjqd @ 2023-04-18 20:01:51
@[jacy1949](/user/891662) ？
by cff_0102 @ 2023-04-18 20:04:10
@[jacy1949](/user/891662) ？
by QAQ__ @ 2023-04-18 20:04:25
@[Wf_yjqd](/user/526094)
啊对对对搞错了**对不起**啊
by jacy1949 @ 2023-04-18 20:05:32
@[Wf_yjqd](/user/526094)
**sqrt是开方**
by jacy1949 @ 2023-04-18 20:07:20
@[Wf_yjqd](/user/526094) @[Wf_yjqd](/user/526094) 其实可以直接算好 sqrt，然后在程序里用的，或者直接取 $300$。
by Xy_top @ 2023-04-18 20:12:56
@[Xy_top](/user/637796) 对，而且取个定值还方便调一点（
by QAQ__ @ 2023-04-18 20:15:31
@[Xy_top](/user/637796) @[QAQ__](/user/627636)
嗯，谢谢
by Wf_yjqd @ 2023-04-18 20:16:57
@[Wf_yjqd](/user/526094)
可是可以
```
i*i<n
```
啊！！！
by jacy1949 @ 2023-04-18 20:29:55