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  1. #include <iostream>
  2. #include <iomanip>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	double t1,t2,t3;
  7.         cin >> t1 >> t2 >> t3;
  8.         double t = 1/(1/t1+1/t2+1/t3) ;
  9.         if( (1/t1+1/t2+1/t3)!=0) cout << setprecision(2) << fixed << t;
  10. 	return 0;
  11. }
Success #stdin #stdout 0s 15224KB
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1577 157.7 15.77
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14.21
https://ideone.com/Sv08N6
language:
C++14 (clang 8.0)
created:
7 years ago
visibility:
secret

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