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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. int main() {
  6. float sl = 1;
  7. float s=0;
  8. float e=0.00005;
  9. int k=1;
  10. while (sl>=e)
  11. {if (k%2==0){s+=sl;}
  12. else
  13. {s-=sl;}
  14. k++;
  15. sl/=k;
  16. }
  17. cout << s;	
  18. 	return 0;
  19. }
Success #stdin #stdout 0.01s 2680KB
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Standard input is empty
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-0.632143
https://ideone.com/yDxNjU
language:
C++ (gcc 8.3)
created:
13 years ago
visibility:
public

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