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  1. #include <iostream>
  2. #include <cmath>
  3. using namespace std;
  4.  
  5. double f1(double x,double y){
  6. 	return log(x*y);
  7. }
  8. double f2(double x,double y){
  9.     return abs(x)+cos(x*y);
  10. }
  11. int main() {
  12. 	double x,y;
  13. 	int n;
  14. 	cin>>n;
  15. 	for (int i=0;i<n;i++){
  16. 	cout<<"\n--"<<i<<"--\n";
  17. 	cout<<"meaning of x"<<endl;
  18. 	cin>>x;
  19. 	cout<<"meaning of y"<<endl;
  20. 	cin>>y;
  21. 	if(x*y>0){
  22. 		cout<<"meaning of f1:"<<f1(x,y)<<"\n";
  23. 	}
  24. 	else { cout<<"undefined";
  25. 	}
  26. 	int smth=f2(x,y);
  27. 	cout<<"meaning of f2:"<<smth<<"\n";
  28. 	if(smth*y>0){
  29. 		int smth1=f1(smth,y);
  30. 		cout<<"new meaning:"<<smth1<<"\n";
  31. 	}
  32. 	else { cout<<"undefined";
  33. 	}
  34. 	}
  35. 	return 0;
  36. }
Success #stdin #stdout 0.01s 5308KB
comments (?)
stdin 
1
1
1
stdout 
--0--
meaning of x
meaning of y
meaning of f1:0
meaning of f2:1
new meaning:0
https://ideone.com/tqp4ha
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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