#include <bits/stdc++.h> using namespace std; double r,ans,V; int main() { cin>>r; ans=4/ 3.0 ; V=ans3.14rrr; printf("%.2lf",V); return 0; }太细了
By signing up a TuringEDU universal account, you can submit code and join discussions in all online judging services provided by us.
Using your TuringEDU universal account
胡宇洋
LV 9
@ 2023-9-24 11:56:28