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  1. #include<stdio.h>
  2. #include<math.h>
  3. int enter()
  4. {
  5. 	int n;
  6. 	do{
  7. 		printf("Enter n: ");
  8. 		scanf("%d",&n);
  9. 	}while(n<1);
  10. 	return n;
  11. }
  12. float sum_f(int n)
  13. {
  14. 	int i,gt=1;
  15. 	float f=0;
  16. 	for(i=1; i<=n; i++)
  17. 	{
  18. 		gt=gt*i;
  19. 		f=f+1.0/gt;
  20. 	}
  21. 	return f;
  22. }
  23. main()
  24. {
  25. 	int n;
  26. 	float f;
  27. 	n=enter();
  28. 	f=sum_f(n);
  29. 	printf("Sum of part A is %f",f);
  30. }
  31.  
Success #stdin #stdout 0s 9424KB
comments (?)
stdin 
4
stdout 
Enter n: Sum of part A is 1.708333
https://ideone.com/2DwK7a
Sum 1/i!
language:
C (gcc 8.3)
created:
6 years ago
visibility:
secret

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