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  1. #include <iostream>
  2. #include <iomanip>
  3. using namespace std;
  4.  
  5. int main() 
  6. {
  7. 	constexpr double a=1e-9;
  8. 	cout << fixed << setprecision(18) << a << endl;
  9. 	return 0;
  10. }
Success #stdin #stdout 0s 3460KB
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stdin
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Standard input is empty
stdout
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0.000000001000000000
https://ideone.com/YwWwwe
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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