为啥要用二维数组？建议用下结构体
by Foggy_night @ 2023-02-22 12:27:29
@[yashi258](/user/935299)
```cpp
printf("%.2lf", sum / 10.0);
```
改成
```cpp
printf("%.2lf", sum*1.0 / n);
```
by _mortal_ @ 2023-02-22 12:27:53
而且最后sum应该是除以n的不是10
by Foggy_night @ 2023-02-22 12:28:17
@[lzn123](/user/831702) 过了，谢谢佬！
by yashi258 @ 2023-02-22 20:50:58
@[夜雾的渺茫](/user/317400) 结构体用的不熟练。
by yashi258 @ 2023-02-22 20:51:24