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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	double fib1=1,fib2=1,fib3,sum=3,E,a=1; 
  6. 	int k=2;
  7. 	cin>>E;  
  8. 	if(E==2 || E==1)cout<<2<<endl<<3; 
  9. 	else if(E<1){
  10. 		for(int i=3;a>=E;i++){ 
  11. 			fib3=fib1+fib2;
  12. 			a=i/fib3; 
  13. 			sum+=a;
  14. 			fib1=fib2;
  15. 			fib2=fib3;
  16. 			k++;  
  17. 		}
  18. 	cout<<k<<endl<<sum;
  19. 	}
  20. 	return 0;
  21. }
Success #stdin #stdout 0s 3416KB
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https://ideone.com/Kuc0JI
language:
C++ (gcc 8.3)
created:
9 years ago
visibility:
public

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