az
楼主输入```long double```要用```%Lf```输入
by songhx @ 2022-03-30 20:54:30
还有，你后面少加了一个零
by songhx @ 2022-03-30 20:56:15
```cpp
printf("%.5lf",(long double)(sum/100000));
```
改成
```cpp
printf("%.5lf",(long double)(sum/1000000));
```
by songhx @ 2022-03-30 20:58:21
感谢神犇
by wangmengyi @ 2022-03-30 20:58:58