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  1.  
  2. #include <stdio.h>
  3.  
  4. int main(void) 
  5. {
  6. 	float sum1 = 0, sum2 = 0;
  7. 	int i;
  8. 	for (i=1; i<=50000; i++)
  9. 		sum1 += (float)1.0/ (float)i;
  10. 	for (i=50000; i>=1; i--)
  11. 		sum2 += (float)1.0/ (float)i;
  12. 	printf("%f\n%f\n%f\n", sum1, sum2, sum2-sum1);
  13. 	return 0;
  14. }
  15.  
Success #stdin #stdout 0s 2160KB
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stdin
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Standard input is empty
stdout
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11.396922
11.397017
0.000094
https://ideone.com/3j3OmD
language:
C (gcc 8.3)
created:
8 years ago
visibility:
secret

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