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  1. #include <iostream>
  2. using namespace std;
  3. int main(){
  4. 	int n;
  5. 	cin >> n;
  6. 	double s = 0;
  7. 	for(int i = 0;i<=n;i++){
  8. 		float c;
  9. 		c = (double)(2*i+1)/(2*i+2);
  10. 		s = s + c;
  11. }
  12. cout << s;
  13. }
Success #stdin #stdout 0.01s 5288KB
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https://ideone.com/mkeOBn
language:
C++ (gcc 8.3)
created:
4 days ago
visibility:
public

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