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  1. #include <iostream>
  2. #include <stdio.h>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	// your code goes here
  7. 	int t;
  8. 	cin>>t;
  9. 	while(t--)
  10. 	{
  11. 		int u,v;int x;
  12. 		cin>>u>>v;
  13. 		cin>>x;
  14. 		float ans=(1.0000000000*u/x)+(1.0000000000*v/x);
  15. 		printf("%.10f\n",1/ans);
  16. 	}
  17. 	return 0;
  18. }
Success #stdin #stdout 0s 15240KB
comments (?)
stdin
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3
3 3 3
6 2 4
38 47 847
stdout
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0.5000000000
0.5000000000
9.9647054672
https://ideone.com/3natay
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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