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  1. #include <iostream>
  2. #include <cmath>//
  3. using namespace std;
  4. int main() {
  5.     double P, R;
  6.     cin>>P;
  7.     R=P/(4+M_PI);
  8.     cout<<R;
  9. 	return 0;
  10. }
Success #stdin #stdout 0s 3472KB
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https://ideone.com/jMOeoJ
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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