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  1. #include <iostream>
  2. #include <cmath>
  3. using namespace std;
  4. void f(int a, double& square, double& circlelength){
  5. 	 square=2*M_PI*a;
  6. 	 circlelength=M_PI*a*a;
  7. }
  8.  
  9. int main() {
  10.  
  11.     double r, s=0, l=0;
  12.     cin>>r;
  13.     f(r, s, l);
  14.     cout<<"Площа: "<<s<<endl<<"Довжина: "<<l;
  15. 	return 0;
  16. }
Success #stdin #stdout 0s 5324KB
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stdout
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Площа: 25.1327
Довжина: 50.2655
https://ideone.com/ozTNuN
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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