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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. int zeroes(int n);
  5.  
  6. int main(void) 
  7. {
  8. 	int n, c, k, t=1000, a, p;
  9. 	scanf("%d", &n);
  10. 	c=zeroes(n);
  11. 	if(c==1)
  12. 	{
  13. 		printf("%d", n);
  14. 		return 0;
  15. 	}
  16. 	for(k=c; k>1; k--)
  17. 	{
  18. 		p=pow(t, k-1);
  19. 		a=n-(n%p);
  20. 		a=a/p;
  21. 		if(a<10 && k!=c)
  22. 		{
  23. 			printf("00");
  24. 			printf("%d", a);
  25. 			printf(".");
  26. 			n=n%p;
  27. 			continue;
  28. 		}
  29. 		if(a<100 && k!=c)
  30. 		{
  31. 			printf("0");
  32. 		}
  33. 		printf("%d", a);
  34. 		printf(".");
  35. 		n=n%p;
  36. 	}
  37. 	a=n%1000;
  38. 	if(a<10)
  39. 		{
  40. 			printf("00");
  41. 			printf("%d", a);
  42. 			return 0;
  43. 		}
  44. 		if(a<100)
  45. 		{
  46. 			printf("0");
  47. 		}
  48. 		printf("%d", a);
  49. 	return 0;
  50. }
  51.  
  52. int zeroes(int n)
  53. {
  54. 	int sum=1, i, k=1000;
  55. 	for(i=0; sum>0; i++)
  56. 	{
  57. 		if(n<k)
  58. 		{
  59. 			return sum;
  60. 		}
  61. 		k*=1000;
  62. 		sum+=1;
  63. 	}
  64. }
Success #stdin #stdout 0s 4524KB
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https://ideone.com/goybin
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
public

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