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  1. #include <iostream>
  2. #include <cmath>
  3. #include <iomanip>
  4. using namespace std;
  5.  
  6. int main() {
  7. 	// your code goes here
  8. 	int n, x, y, z, r, a, b, c, d;
  9. 	cin>>n;
  10. 	for(int i=0; i<n; i++){
  11. 			cin>>x>>y>>z>>r>>a>>b>>c>>d;
  12. 			cout<<setprecision(12)<<M_PI*r*r<<endl;
  13. 	}
  14. 	return 0;
  15. }
Success #stdin #stdout 0s 4288KB
comments (?)
stdin 
3
2 3 5 7 1 2 4 8
4 5 3 9 2 6 8 10
23 45 87 8 10 28 65 89
stdout 
153.938040026
254.469004941
201.06192983
https://ideone.com/zMGI49
language:
C++ (gcc 8.3)
created:
5 years ago
visibility:
secret

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