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  1. #include <stdio.h>
  2. int main()
  3. {
  4. 	while(1)
  5. 	{
  6. 		int n=0;
  7. 		int arr[100000],sum=0,arrcnt=0;
  8. 		scanf("%d",&n);
  9. 		if(n==-1) return 0;
  10. 		for(int i=2;i<=n;i++)
  11. 		{
  12. 			if(n%i==0)
  13. 			{
  14. 				arr[arrcnt] = n/i;
  15. 				arrcnt++;
  16. 				sum+=n/i;
  17. 			}
  18. 		}
  19. 		if(sum==n)
  20. 		{
  21. 			printf("%d = ",n);
  22. 			for(int i=0;i<arrcnt;i++)
  23. 			{
  24. 				if(arr[arrcnt - i-1]==NULL)
  25. 				{
  26. 					break;
  27. 				}
  28. 				printf("%d",arr[arrcnt - i-1]);
  29. 				if(arr[arrcnt - i-2]!=NULL)
  30. 				{
  31. 					printf(" + ");
  32. 				}
  33. 			}
  34. 		}
  35. 		else
  36. 		{
  37. 			printf("%d is NOT perfect.",n);
  38. 		}
  39. 		printf("\n");
  40. 	}
  41.  
  42. }
Success #stdin #stdout 0s 4552KB
comments (?)
stdin
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6
-1
stdout
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6 = 1 + 2 + 3 +
https://ideone.com/BdOHir
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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