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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.     constexpr double kPi = 3.14;
  6.     constexpr double kPi2 = 2.0*kPi;
  7.     cout << kPi2;
  8. }
Success #stdin #stdout 0s 3468KB
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6.28
https://ideone.com/B1fTB7
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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