43787

Run ID	Author	Problem	Lang	Verdict	Time	Memory	Code Length	Submit Time
43787	zouqinghua	与圆相关的计算	C++	Accepted	1 MS	252 KB	139	2024-03-23 10:39:33

#include<bits/stdc++.h> int main() { double r,pi=3.14159; scanf("%lf",&r); printf("%.4lf %.4lf %.4lf",2*r,2*pi*r,pi*r*r); }