补充:得分是60
by yy792e @ 2024-07-16 13:19:27
@[yy792e](/user/908571) **求关**
```c
#include<bits/stdc++.h>
using namespace std;
int main(){
double r,d,c,s,pi=3.14159;
cin>>r;
d=2*r;
c=2*r*pi;
s=pi*r*r;
printf("%0.4f %0.4f %0.4f",d,c,s);
return 0;
}
```
by Maisie586_ @ 2024-07-16 13:44:59
我不会
by vvwvvwvvwv @ 2024-08-16 12:54:39