fork download
copy 
  1. #include <iostream>
  2. #include <bits/stdc++.h>
  3. using namespace std;
  4.  
  5. int main() {
  6.  
  7. double area,line;
  8. double ta=3.14; 
  9. cin>>area;
  10. line=2*sqrt(area/ta);
  11.  
  12. std::cout << std::fixed;
  13.   std::cout << std::setprecision(9) << line << '\n';
  14.  
  15.  
  16. 	return 0;
  17. }
Success #stdin #stdout 0.01s 5288KB
comments (?)
stdin
copy 
1.000000000
stdout
copy 
1.128665296
https://ideone.com/W1W17P
language:
C++ (gcc 8.3)
created:
3 hours ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!